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• Singleton Creation preference

  - by cwieland

  You can create singletons in a variety of ways. I am wondering which is better between these. +(ServerConnection*)shared{ static dispatch_once_t pred=0; __strong static id _sharedObject = nil; dispatch_once(&pred, ^{ _sharedObject = [[self alloc] init]; // or some other init method }); return _sharedObject; } I could see that this compiles down to something very fast. I would think that checking the predicate would be another function call. The other is: +(ServerConnection*)shared{ static ServerConnection* connection=nil; if (connection==nil) { connection=[[ServerConnection alloc] init]; } return connection; } Are there any major differences between the two? I know these are probably similar enough to not worry about it. But Just wondering.

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• How do i close a socket after a timeout in node.js?

  - by rramsden

  I'm trying to close a socket after a connection times out after 1000ms. I am able to set a timeout that gets triggered after a 1000ms but I can't seem to destroy the socket... any ideas? var connection = http.createClient(80, 'localhost'); var request = connection.request('GET', '/somefile.xml', {'host':'localhost'}); var start = new Date().getTime(); request.socket.setTimeout(1000); request.socket.addListener("timeout", function() { request.socket.destroy(); sys.puts("socket timeout connection closed"); }); request.addListener("response", function(response) { var responseBody = []; response.setEncoding("utf8"); response.addListener("data", function(chunk) { sys.puts(chunk); responseBody.push(chunk); }); response.addListener("end", function() { }); }); request.end(); returns socket timeout connection closed node.js:29 if (!x) throw new Error(msg || "assertion error"); ^ Error: assertion error at node.js:29:17 at Timer.callback (net:152:20) at node.js:204:9

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• The big last_insert_id() problem, again.

  - by wretrOvian

  Note - this follows my question here: http://stackoverflow.com/questions/2983685/jdbc-does-the-connection-break-if-i-lose-reference-to-the-connection-object Now i have a created a class so i can deal with JDBC easily for the rest of my code - public class Functions { private String DB_SERVER = ""; private String DB_NAME = "test"; private String DB_USERNAME = "root"; private String DB_PASSWORD = "password"; public Connection con; public PreparedStatement ps; public ResultSet rs; public ResultSetMetaData rsmd; public void connect() throws java.io.FileNotFoundException, java.io.IOException, SQLException, Exception { String[] dbParms = Parameters.load(); DB_SERVER = dbParms[0]; DB_NAME = dbParms[1]; DB_USERNAME = dbParms[2]; DB_PASSWORD = dbParms[3]; // Connect. Class.forName("com.mysql.jdbc.Driver").newInstance(); con = DriverManager.getConnection("jdbc:mysql://" + DB_SERVER + "/" + DB_NAME, DB_USERNAME, DB_PASSWORD); } public void disconnect() throws SQLException { // Close. con.close(); } } As seen Parameters.load() refreshes the connection parameters from a file every-time, so that any changes to the same may be applied on the next immediate connection. An example of this class in action - public static void add(String NAME) throws java.io.FileNotFoundException, java.io.IOException, SQLException, Exception { Functions dbf = new Functions(); dbf.connect(); String query = "INSERT INTO " + TABLE_NAME + "(" + "NAME" + ") VALUES(?)"; PreparedStatement ps = dbf.con.prepareStatement(query); ps.setString(1, NAME); ps.executeUpdate(); dbf.disconnect(); } Now here is the problem - for adding a record to the table above, the add() method will open a connection, add the record - and then call disconnect() . What if i want to get the ID of the inserted record after i call add() -like this : Department.add("new dept"); int ID = getlastID(); Isn't it possible that another add() was called between those two statements?

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• nginx proxying websockets, must be missing something

  - by CodeMonkey

  I have a basic chat app written in node.js using express and socket.io; it works fine when connecting directly to node on port 3000 But doesn't work when I try to use nginx v1.4.2 as a proxy. I start off using the connection map map $http_upgrade $connection_upgrade { default upgrade; '' close; } Then add the locations location /socket.io/ { proxy_pass http://node; proxy_redirect off; proxy_http_version 1.1; proxy_set_header Host $http_host; proxy_set_header X-Forwarded-For $remote_addr; proxy_set_header X-Request-Id $txid; proxy_set_header X-Session-Id $uid_set+$uid_got; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection $connection_upgrade; proxy_buffering off; proxy_read_timeout 86400; keepalive_timeout 90; proxy_cache off; access_log /var/log/nginx/webservice.access.log; error_log /var/log/nginx/webservice.error.log; } location /web-service/ { proxy_pass http://node; proxy_redirect off; proxy_http_version 1.1; proxy_set_header Host $http_host; proxy_set_header X-Forwarded-For $remote_addr; proxy_set_header X-Request-Id $txid; proxy_set_header X-Session-Id $uid_set+$uid_got; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection $connection_upgrade; proxy_buffering off; proxy_read_timeout 86400; keepalive_timeout 90; access_log /var/log/nginx/webservice.access.log; error_log /var/log/nginx/webservice.error.log; rewrite /web-service/(.*) /$1 break; proxy_cache off; } These are built up using all of the tips to get it working that I could find. The error log does not show any errors. (except when I stop node to test the error logging is working) When through nginx I do see a websocket connection in the dev tools, with the status of 101; but the frames tab under the resuects is empty. The only differnece I can see in the response headers is a case difference - "upgrade" vs "Upgrade" - through nginx : Connection:upgrade Date:Fri, 08 Nov 2013 11:49:25 GMT Sec-WebSocket-Accept:LGB+iEBb8Ql9zYfqNfuuXzdzjgg= Server:nginx/1.4.2 Upgrade:websocket direct from node Connection:Upgrade Sec-WebSocket-Accept:8nwPpvg+4wKMOyQBEvxWXutd8YY= Upgrade:websocket output from node (when used through nginx) debug - served static content /socket.io.js debug - client authorized info - handshake authorized iaej2VQlsbLFIhachyb1 debug - setting request GET /socket.io/1/websocket/iaej2VQlsbLFIhachyb1 debug - set heartbeat interval for client iaej2VQlsbLFIhachyb1 debug - client authorized for debug - websocket writing 1:: debug - websocket writing 5:::{"name":"message","args":[{"message":"welcome to the chat"}]} debug - clearing poll timeout debug - jsonppolling writing io.j[0]("8::"); debug - set close timeout for client 7My3F4CuvZC0I4Olhybz debug - jsonppolling closed due to exceeded duration debug - clearing poll timeout debug - jsonppolling writing io.j[0]("8::"); debug - set close timeout for client AkCYl0nWNZAHeyUihyb0 debug - jsonppolling closed due to exceeded duration debug - setting request GET /socket.io/1/xhr-polling/iaej2VQlsbLFIhachyb1?t=1383911206158 debug - setting poll timeout debug - discarding transport debug - cleared heartbeat interval for client iaej2VQlsbLFIhachyb1 debug - setting request GET /socket.io/1/jsonp-polling/iaej2VQlsbLFIhachyb1?t=1383911216160&i=0 debug - setting poll timeout debug - discarding transport debug - clearing poll timeout debug - clearing poll timeout debug - jsonppolling writing io.j[0]("8::"); debug - set close timeout for client iaej2VQlsbLFIhachyb1 debug - jsonppolling closed due to exceeded duration debug - setting request GET /socket.io/1/jsonp-polling/iaej2VQlsbLFIhachyb1?t=1383911236429&i=0 debug - setting poll timeout debug - discarding transport debug - cleared close timeout for client iaej2VQlsbLFIhachyb1 when direct to node, the client does not start polling. The normal http stuff node outputs works fine with nginx. Clearly something I am not seeing, but I am stuck, thanks :)

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• sendmail can not relay from itself

  - by Bernie

  I am running 3 centos 5.2 servers and I have configured the server for forward all messages to root to be emailed to me via .forward rule. This is working fine on two of the servers but not on the third. I have also tried copying the mail config files from the backup server and placing them on the file server and restarting sendmail. I also removed and reinstalled sendmail via yum but the results are the same. I am not sure what the issue could be they are all standard centos installs. Here is an example from the backup server which is working and the fileserver which isn't I am also going to include the mail log. good from backup server [root@backup ]# sendmail -v [email protected] < test.mail [email protected]... Connecting to [127.0.0.1] via relay... 220 backup.localhost ESMTP Sendmail 8.13.8/8.13.8; Fri, 16 Oct 2009 10:23:50 -0700 >>> EHLO backup.localhost 250-backup.localhost Hello backup.localhost [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-DELIVERBY 250 HELP >>> MAIL From:<[email protected]> SIZE=73 250 2.1.0 <[email protected]>... Sender ok >>> RCPT To:<[email protected]> >>> DATA 250 2.1.5 <[email protected]>... Recipient ok 354 Enter mail, end with "." on a line by itself >>> . 250 2.0.0 n9GHNoGC020924 Message accepted for delivery [email protected]... Sent (n9GHNoGC020924 Message accepted for delivery) Closing connection to [127.0.0.1] >>> QUIT 221 2.0.0 backup.localhost closing connection bad from file server [root@fileserver bernie]# sendmail -v [email protected] < test.mail [email protected]... Connecting to [127.0.0.1] via relay... 220 fileserver.localhost ESMTP Sendmail 8.13.8/8.13.8; Fri, 16 Oct 2009 10:23:26 -0700 >>> EHLO fileserver.localhost 250-fileserver.localhost Hello fileserver.localhost [127.0.0.1], pleased to meet you 250 ENHANCEDSTATUSCODES >>> MAIL From:<[email protected]> 550 5.0.0 Access denied root... Using cached ESMTP connection to [127.0.0.1] via relay... >>> RSET 250 2.0.0 Reset state >>> MAIL From:<> 550 5.0.0 Access denied postmaster... Using cached ESMTP connection to [127.0.0.1] via relay... >>> RSET 250 2.0.0 Reset state >>> MAIL From:<> 550 5.0.0 Access denied Closing connection to [127.0.0.1] >>> QUIT 221 2.0.0 fileserver.localhost closing connection mail log Oct 16 10:39:13 fileserver sendmail[28059]: n9GHdDom028059: from=root, size=72, class=0, nrcpts=1, msgid=<[email protected]>, relay=root@localhost Oct 16 10:39:13 fileserver sendmail[28060]: n9GHdDwl028060: tcpwrappers (fileserver.localhost, 127.0.0.1) rejection Oct 16 10:39:13 fileserver sendmail[28059]: n9GHdDom028059: [email protected], ctladdr=root (0/0), delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=30072, relay=[127.0.0.1] [127.0.0.1], dsn=5.0.0, stat=Service unavailable Oct 16 10:39:13 fileserver sendmail[28059]: n9GHdDom028059: n9GHdDon028059: DSN: Service unavailable Oct 16 10:39:13 fileserver sendmail[28059]: n9GHdDon028059: to=root, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=31096, relay=[127.0.0.1], dsn=5.0.0, stat=Service unavailable Oct 16 10:39:13 fileserver sendmail[28059]: n9GHdDon028059: n9GHdDoo028059: return to sender: Service unavailable Oct 16 10:39:13 fileserver sendmail[28059]: n9GHdDoo028059: to=postmaster, delay=00:00:00, xdelay=00:00:00, mailer=relay, pri=32120, relay=[127.0.0.1], dsn=5.0.0, stat=Service unavailable Oct 16 10:39:13 fileserver sendmail[28059]: n9GHdDon028059: Losing ./qfn9GHdDon028059: savemail panic Oct 16 10:39:13 fileserver sendmail[28059]: n9GHdDon028059: SYSERR(root): savemail: cannot save rejected email anywhere

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• Nginx error page with JSON response

  - by Waseem

  I'm trying to serve a maintenance page to clients making request to my application when it is under maintenance. Following is my nginx configuration for that purpose. server { recursive_error_pages on; listen 80; ... if (-f $document_root/maintenance.html) { return 503; } error_page 404 /404.html; error_page 500 502 504 /500.html; error_page 503 @503; location = /404.html { root $document_root; } location = /500.html { root $document_root; } location @503 { error_page 405 =/maintenance.html; if (-f $request_filename) { break; } rewrite ^(.*)$ /maintenance.html break; } } Lets say I have enabled maintenance of my site by creating a $document_root/maintenance.html. This file, correctly, is served when a user makes a request with with Accept header of text/html. $ curl http://server.com/ -i -v -X GET -H "Accept: text/html" * Adding handle: conn: 0xf89420 * Adding handle: send: 0 * Adding handle: recv: 0 * Curl_addHandleToPipeline: length: 1 * - Conn 0 (0xf89420) send_pipe: 1, recv_pipe: 0 * About to connect() to server.com port 80 (#0) * Trying xxx.xxx.xxx.xxx... * Connected to server.com (xxx.xxx.xxx.xxx) port 80 (#0) > GET / HTTP/1.1 > User-Agent: curl/7.33.0 > Host: server.com > Accept: text/html > < HTTP/1.1 503 Service Temporarily Unavailable HTTP/1.1 503 Service Temporarily Unavailable * Server nginx/1.1.19 is not blacklisted < Server: nginx/1.1.19 Server: nginx/1.1.19 < Date: Thu, 14 Nov 2013 11:16:16 GMT Date: Thu, 14 Nov 2013 11:16:16 GMT < Content-Type: text/html Content-Type: text/html < Content-Length: 27 Content-Length: 27 < Connection: keep-alive Connection: keep-alive < This is under maintenance. * Connection #0 to host server.com left intact Now some clients set Accept header to application/json. How do I send them a JSON response instead of maintenance.html? Following is the response that I get when setting Accept to application/json. $ curl http://server.com/ -i -v -X GET -H "Accept: application/json" * Adding handle: conn: 0x190c430 * Adding handle: send: 0 * Adding handle: recv: 0 * Curl_addHandleToPipeline: length: 1 * - Conn 0 (0x190c430) send_pipe: 1, recv_pipe: 0 * About to connect() to server.com port 80 (#0) * Trying xxx.xxx.xxx.xxx... * Connected to server.com (xxx.xxx.xxx.xxx) port 80 (#0) > GET / HTTP/1.1 > User-Agent: curl/7.33.0 > Host: server.com > Accept: application/json > < HTTP/1.1 503 Service Temporarily Unavailable HTTP/1.1 503 Service Temporarily Unavailable * Server nginx/1.1.19 is not blacklisted < Server: nginx/1.1.19 Server: nginx/1.1.19 < Date: Thu, 14 Nov 2013 11:15:50 GMT Date: Thu, 14 Nov 2013 11:15:50 GMT < Content-Type: text/html Content-Type: text/html < Content-Length: 27 Content-Length: 27 < Connection: keep-alive Connection: keep-alive < This is under maintenance. * Connection #0 to host server.com left intact

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• how does openvpn decide which interface to get IP addrs from

  - by bkrupa

  Using ubuntu 10.04 on both ends. We have a client and server machine on the SAME network attempting to make a vpn connection. We use the config files from here and made minimal changes. The server and client start and seem to connect without any trouble. The server looks like: Wed Feb 23 22:13:22 2011 MULTI: multi_create_instance called Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Re-using SSL/TLS context Wed Feb 23 22:13:22 2011 192.168.1.55:47166 LZO compression initialized Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Control Channel MTU parms [ L:1574 D:138 EF:38 EB:0 ET:0 EL:0 ] Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Data Channel MTU parms [ L:1574 D:1450 EF:42 EB:135 ET:32 EL:0 AF:3/1 ] Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Local Options hash (VER=V4): 'f7df56b8' Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Expected Remote Options hash (VER=V4): 'd79ca330' Wed Feb 23 22:13:22 2011 192.168.1.55:47166 TLS: Initial packet from 192.168.1.55:47166, sid=69112e42 5458135b *...* Wed Feb 23 22:13:22 2011 192.168.1.55:47166 Control Channel: TLSv1, cipher TLSv1/SSLv3 DHE-RSA-AES256-SHA, 1024 bit RSA Wed Feb 23 22:13:22 2011 192.168.1.55:47166 [client1] Peer Connection Initiated with 192.168.1.55:47166 On the client side the connection looks like: Wed Feb 23 22:20:07 2011 [server] Peer Connection Initiated with [AF_INET]192.168.1.41:1194 Wed Feb 23 22:20:10 2011 SENT CONTROL [server]: 'PUSH_REQUEST' (status=1) Wed Feb 23 22:20:10 2011 PUSH: Received control message: 'PUSH_REPLY,route-gateway 10.8.0.4,ping 10,ping-restart 120,ifconfig 10.8.0.50 255.255.255.0' ... Wed Feb 23 22:20:10 2011 /sbin/ifconfig tap0 10.8.0.50 netmask 255.255.255.0 mtu 1500 broadcast 10.8.0.255 Wed Feb 23 22:20:10 2011 Initialization Sequence Completed The openvpn server has been configured to assign ip addresses in the range 10.8.0.* and the client has been given 10.8.0.50. When I run the following nmap from the client: Starting Nmap 5.00 ( http://nmap.org ) at 2011-02-23 22:04 EST Host 10.8.0.50 is up (0.00047s latency). Nmap done: 256 IP addresses (1 host up) scanned in 30.34 seconds Host 192.168.1.1 is up (0.0025s latency). Host 192.168.1.18 is up (0.074s latency). Host 192.168.1.41 is up (0.0024s latency). Host 192.168.1.55 is up (0.00018s latency). Nmap done: 256 IP addresses (4 hosts up) scanned in 6.33 seconds If I run an nmap from the server on 10.8.0.* I get nothing. If the client has two interfaces (wireless and tap device) when you look for a certain ip address, how does it decide which interface to connect on? edit I am trying to set up a vpn so that I can connect to my home network from a remote network. It seems like openvpn is connecting but none of the computers on my home network appear as network machines even after the connection is "Established". Stripped versions of the client and server config files are posted below. Thanks for any help you can offer. server.conf port 1194 proto udp dev tap ca /etc/openvpn/easy-rsa/keys/ca.crt cert /etc/openvpn/easy-rsa/keys/server.crt key /etc/openvpn/easy-rsa/keys/server.key # This file should be kept secret dh /etc/openvpn/easy-rsa/keys/dh1024.pem ifconfig-pool-persist ipp.txt server-bridge 10.8.0.4 255.255.255.0 10.8.0.50 10.8.0.100 keepalive 10 120 comp-lzo persist-key persist-tun status openvpn-status.log verb 3 client.conf client dev tap dev-node tap0901 proto udp remote ********** 1194 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert client1.crt key client1.key comp-lzo verb 3 one other thing that might be helpful, I tried to connect using the openvpn gui for windows and the connection stalls out on "obtaining configuration" and the bar just scrolls forever.

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• Cisco VPNClient from Mac won't connect using iPhone Tethering

  - by Dan Short

  I just set up iPhone tethering from my Snow Leopard Macbook Pro to my iPhone 3GS with the Datapro 4GB plan from AT&T. When attempting to connect to my corporate VPN from the MacBook Pro with Cisco VPNClient 4.9.01 (0100) I get the following log information: Cisco Systems VPN Client Version 4.9.01 (0100) Copyright (C) 1998-2006 Cisco Systems, Inc. All Rights Reserved. Client Type(s): Mac OS X Running on: Darwin 10.6.0 Darwin Kernel Version 10.6.0: Wed Nov 10 18:13:17 PST 2010; root:xnu-1504.9.26~3/RELEASE_I386 i386 Config file directory: /etc/opt/cisco-vpnclient 1 13:02:50.791 02/22/2011 Sev=Info/4 CM/0x43100002 Begin connection process 2 13:02:50.791 02/22/2011 Sev=Warning/2 CVPND/0x83400011 Error -28 sending packet. Dst Addr: 0x0AD337FF, Src Addr: 0x0AD33702 (DRVIFACE:1158). 3 13:02:50.791 02/22/2011 Sev=Warning/2 CVPND/0x83400011 Error -28 sending packet. Dst Addr: 0x0A2581FF, Src Addr: 0x0A258102 (DRVIFACE:1158). 4 13:02:50.792 02/22/2011 Sev=Info/4 CM/0x43100004 Establish secure connection using Ethernet 5 13:02:50.792 02/22/2011 Sev=Info/4 CM/0x43100024 Attempt connection with server "209.235.253.115" 6 13:02:50.792 02/22/2011 Sev=Info/4 CVPND/0x43400019 Privilege Separation: binding to port: (500). 7 13:02:50.793 02/22/2011 Sev=Info/4 CVPND/0x43400019 Privilege Separation: binding to port: (4500). 8 13:02:50.793 02/22/2011 Sev=Info/6 IKE/0x4300003B Attempting to establish a connection with 209.235.253.115. 9 13:02:51.293 02/22/2011 Sev=Warning/2 CVPND/0x83400018 Output size mismatch. Actual: 0, Expected: 237. (DRVIFACE:1319) 10 13:02:51.894 02/22/2011 Sev=Warning/2 CVPND/0x83400018 Output size mismatch. Actual: 0, Expected: 237. (DRVIFACE:1319) 11 13:02:52.495 02/22/2011 Sev=Warning/2 CVPND/0x83400018 Output size mismatch. Actual: 0, Expected: 237. (DRVIFACE:1319) 12 13:02:53.096 02/22/2011 Sev=Warning/2 CVPND/0x83400018 Output size mismatch. Actual: 0, Expected: 237. (DRVIFACE:1319) 13 13:02:53.698 02/22/2011 Sev=Warning/2 CVPND/0x83400018 Output size mismatch. Actual: 0, Expected: 237. (DRVIFACE:1319) 14 13:02:54.299 02/22/2011 Sev=Warning/2 CVPND/0x83400018 Output size mismatch. Actual: 0, Expected: 237. (DRVIFACE:1319) 15 13:02:54.299 02/22/2011 Sev=Info/4 IKE/0x43000075 Unable to acquire local IP address after 5 attempts (over 5 seconds), probably due to network socket failure. 16 13:02:54.299 02/22/2011 Sev=Warning/2 IKE/0xC300009A Failed to set up connection data 17 13:02:54.299 02/22/2011 Sev=Info/4 CM/0x4310001C Unable to contact server "209.235.253.115" 18 13:02:54.299 02/22/2011 Sev=Info/5 CM/0x43100025 Initializing CVPNDrv 19 13:02:54.300 02/22/2011 Sev=Info/4 CVPND/0x4340001F Privilege Separation: restoring MTU on primary interface. 20 13:02:54.300 02/22/2011 Sev=Info/4 IKE/0x43000001 IKE received signal to terminate VPN connection 21 13:02:54.300 02/22/2011 Sev=Info/4 IPSEC/0x43700008 IPSec driver successfully started 22 13:02:54.300 02/22/2011 Sev=Info/4 IPSEC/0x43700014 Deleted all keys 23 13:02:54.300 02/22/2011 Sev=Info/4 IPSEC/0x4370000D Key(s) deleted by Interface (192.168.0.171) 24 13:02:54.300 02/22/2011 Sev=Info/4 IPSEC/0x43700014 Deleted all keys 25 13:02:54.300 02/22/2011 Sev=Info/4 IPSEC/0x43700014 Deleted all keys 26 13:02:54.300 02/22/2011 Sev=Info/4 IPSEC/0x43700014 Deleted all keys 27 13:02:54.300 02/22/2011 Sev=Info/4 IPSEC/0x4370000A IPSec driver successfully stopped The key line is 15: 15 13:02:54.299 02/22/2011 Sev=Info/4 IKE/0x43000075 Unable to acquire local IP address after 5 attempts (over 5 seconds), probably due to network socket failure. I can't find anything online about this. I found a single entry for the error message in Google, and it was a swedish (or some other nordic language site) that didn't have an answer to the question. I've tried connecting through both USB and Bluetooth tethering to the iPhone, and they both return the exact same results. I don't have direct control over the firewall, but if changes are necessary to make it work, I may be able to get the powers-that-be to make adjustments. A solution that doesn't require reconfiguring the firewall would be far better of course... Does anyone know what I can do to make this behave? Thanks, Dan

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• Incorrect gzipping of http requests, can't find who's doing it

  - by Ned Batchelder

  We're seeing some very strange mangling of HTTP responses, and we can't figure out what is doing it. We have an app server handling JSON requests. Occasionally, the response is returned gzipped, but with incorrect headers that prevent the browser from interpreting it correctly. The problem is intermittent, and changes behavior over time. Yesterday morning it seemed to fail 50% of the time, and in fact, seemed tied to one of our two load-balanced servers. Later in the afternoon, it was failing only 20 times out of 1000, and didn't correlate with an app server. The two app servers are running Apache 2.2 with mod_wsgi and a Django app stack. They have identical Apache configs and source trees, and even identical packages installed on Red Hat. There's a hardware load balancer in front, I don't know the make or model. Akamai is also part of the food chain, though we removed Akamai and still had the problem. Here's a good request and response: * Connected to example.com (97.7.79.129) port 80 (#0) > POST /claim/ HTTP/1.1 > User-Agent: curl/7.19.7 (x86_64-pc-linux-gnu) libcurl/7.19.7 OpenSSL/0.9.8k zlib/1.2.3.3 libidn/1.15 > Host: example.com > Accept: */* > Referer: http://example.com/apps/ > Accept-Encoding: gzip,deflate > Content-Length: 29 > Content-Type: application/x-www-form-urlencoded > } [data not shown] < HTTP/1.1 200 OK < Server: Apache/2 < Content-Language: en-us < Content-Encoding: identity < Content-Length: 47 < Content-Type: application/x-javascript < Connection: keep-alive < Vary: Accept-Encoding < { [data not shown] * Connection #0 to host example.com left intact * Closing connection #0 {"msg": "", "status": "OK", "printer_name": ""} And here's a bad one: * Connected to example.com (97.7.79.129) port 80 (#0) > POST /claim/ HTTP/1.1 > User-Agent: curl/7.19.7 (x86_64-pc-linux-gnu) libcurl/7.19.7 OpenSSL/0.9.8k zlib/1.2.3.3 libidn/1.15 > Host: example.com > Accept: */* > Referer: http://example.com/apps/ > Accept-Encoding: gzip,deflate > Content-Length: 29 > Content-Type: application/x-www-form-urlencoded > } [data not shown] < HTTP/1.1 200 OK < Server: Apache/2 < Content-Language: en-us < Content-Encoding: identity < Content-Type: application/x-javascript < Content-Encoding: gzip < Content-Length: 59 < Connection: keep-alive < Vary: Accept-Encoding < X-N: S < { [data not shown] * Connection #0 to host example.com left intact * Closing connection #0 ?V?-NW?RPR?QP*.I,)-???A??????????T??Z? ??/ There are two things to notice about the bad response: It has two Content-Encoding headers, and the browsers seem to use the first. So they see an identity encoding header, and gzipped content, so they can't interpret the response. The bad response has an extra "X-N: S" header. Perhaps if I could find out what intermediary adds "X-N: S" headers to responses, I could track down the culprit...

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• why nginx rewrite post request from /login to //login?

  - by jiangchengwu

  There is a if statement, which will rewrite url when the client is Android. Everything ok. But, something got strange. Nginx will write post request /login to //login, even if the block of if statement is bank. So I got a 404 page. As the jetty server only accept /login request. Server conf: location / { proxy_pass http://localhost:8785/; proxy_set_header Host $http_host; proxy_set_header Remote-Addr $http_remote_addr; proxy_set_header X-Real-IP $remote_addr; if ( $http_user_agent ~ Android ){ # rewrite something, been commented } } Debug info, origin log https://gist.github.com/3799021 ... 2012/09/28 16:29:49 [debug] 26416#0: *1 http script regex: "Android" 2012/09/28 16:29:49 [notice] 26416#0: *1 "Android" matches "Android/1.0", client: 106.187.97.22, server: ireedr.com, request: "POST /login HTTP/1.1", host: "ireedr.com" ... 2012/09/28 16:29:49 [debug] 26416#0: *1 http proxy header: "POST //login HTTP/1.0 Host: ireedr.com X-Real-IP: 106.187.97.22 Connection: close Accept-Encoding: identity, deflate, compress, gzip Accept: */* User-Agent: Android/1.0 " ... 2012/09/28 16:29:49 [debug] 26416#0: *1 HTTP/1.1 404 Not Found Server: nginx/1.2.1 Date: Fri, 28 Sep 2012 08:29:49 GMT Content-Type: text/html;charset=ISO-8859-1 Transfer-Encoding: chunked Connection: keep-alive Cache-Control: must-revalidate,no-cache,no-store Content-Encoding: gzip ... Only when I commented the block in the configration file: location / { proxy_pass http://localhost:8785/; proxy_set_header Host $http_host; proxy_set_header Remote-Addr $http_remote_addr; proxy_set_header X-Real-IP $remote_addr; #if ( $http_user_agent ~ Android ){ # #} } The client can get an 200 response. Debug info, origin log https://gist.github.com/3799023 ... "POST /login HTTP/1.0 Host: ireedr.com X-Real-IP: 106.187.97.22 Connection: close Accept-Encoding: identity, deflate, compress, gzip Accept: */* User-Agent: Android/1.0 " ... 2012/09/28 16:27:19 [debug] 26319#0: *1 HTTP/1.1 200 OK Server: nginx/1.2.1 Date: Fri, 28 Sep 2012 08:27:19 GMT Content-Type: application/json;charset=UTF-8 Content-Length: 17 Connection: keep-alive ... As the log: 2012/09/28 16:29:49 [notice] 26416#0: *1 "Android" matches "Android/1.0", client: 106.187.97.22, server: ireedr.com, request: "POST /login HTTP/1.1", host: "ireedr.com" 2012/09/28 16:29:49 [debug] 26416#0: *1 http script if 2012/09/28 16:29:49 [debug] 26416#0: *1 post rewrite phase: 4 2012/09/28 16:29:49 [debug] 26416#0: *1 generic phase: 5 2012/09/28 16:29:49 [debug] 26416#0: *1 generic phase: 6 2012/09/28 16:29:49 [debug] 26416#0: *1 generic phase: 7 2012/09/28 16:29:49 [debug] 26416#0: *1 access phase: 8 2012/09/28 16:29:49 [debug] 26416#0: *1 access phase: 9 2012/09/28 16:29:49 [debug] 26416#0: *1 access phase: 10 2012/09/28 16:29:49 [debug] 26416#0: *1 post access phase: 11 2012/09/28 16:29:49 [debug] 26416#0: *1 try files phase: 12 2012/09/28 16:29:49 [debug] 26416#0: *1 posix_memalign: 0000000001E798F0:4096 @16 2012/09/28 16:29:49 [debug] 26416#0: *1 http init upstream, client timer: 0 2012/09/28 16:29:49 [debug] 26416#0: *1 epoll add event: fd:13 op:3 ev:80000005 2012/09/28 16:29:49 [debug] 26416#0: *1 http script copy: "Host: " 2012/09/28 16:29:49 [debug] 26416#0: *1 http script var: "ireedr.com" 2012/09/28 16:29:49 [debug] 26416#0: *1 http script copy: " " 2012/09/28 16:29:49 [debug] 26416#0: *1 http script copy: "" 2012/09/28 16:29:49 [debug] 26416#0: *1 http script copy: "" 2012/09/28 16:29:49 [debug] 26416#0: *1 http script copy: "X-Real-IP: " 2012/09/28 16:29:49 [debug] 26416#0: *1 http script var: "106.187.97.22" 2012/09/28 16:29:49 [debug] 26416#0: *1 http script copy: " " 2012/09/28 16:29:49 [debug] 26416#0: *1 http script copy: "Connection: close " 2012/09/28 16:29:49 [debug] 26416#0: *1 http proxy header: "Accept-Encoding: identity, deflate, compress, gzip" 2012/09/28 16:29:49 [debug] 26416#0: *1 http proxy header: "Accept: */*" 2012/09/28 16:29:49 [debug] 26416#0: *1 http proxy header: "User-Agent: Android/1.0" 2012/09/28 16:29:49 [debug] 26416#0: *1 http proxy header: "POST //login HTTP/1.0 Host: ireedr.com X-Real-IP: 106.187.97.22 Connection: close Accept-Encoding: identity, deflate, compress, gzip Accept: */* User-Agent: Android/1.0 " ... Maybe post rewrite phase had rewrite the request. Anybody can help me to solve this problem or know why nginx do that ? Much appreciated.

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• Setting up VPN client: L2TP with IPsec

  - by zachar

  I've got to connect to vpn server. It works on Windows, but in Ubuntu 10.04 not. Number of options is confusing for me. There is the input that I have: IP Address of VPN Pre-shared key to authenticate Information that MS-CHAPv2 is used Login and Password to VPN I was trying to achive that with network manager and with L2TP IPsec VPN Manager 1.0.9 but at failed. There is some logged information from L2TP IPsec VPN Manager 1.0.9: Nov 09 15:21:46.854 ipsec_setup: Stopping Openswan IPsec... Nov 09 15:21:48.088 Stopping xl2tpd: xl2tpd. Nov 09 15:21:48.132 ipsec_setup: Starting Openswan IPsec U2.6.23/K2.6.32-49-generic... Nov 09 15:21:48.308 ipsec__plutorun: Starting Pluto subsystem... Nov 09 15:21:48.318 ipsec__plutorun: adjusting ipsec.d to /etc/ipsec.d Nov 09 15:21:48.338 ipsec__plutorun: 002 added connection description "my_vpn_name" Nov 09 15:21:48.348 ipsec__plutorun: 003 NAT-Traversal: Trying new style NAT-T Nov 09 15:21:48.348 ipsec__plutorun: 003 NAT-Traversal: ESPINUDP(1) setup failed for new style NAT-T family IPv4 (errno=19) Nov 09 15:21:48.349 ipsec__plutorun: 003 NAT-Traversal: Trying old style NAT-T Nov 09 15:21:48.994 104 "my_vpn_name" #1: STATE_MAIN_I1: initiate Nov 09 15:21:48.994 003 "my_vpn_name" #1: received Vendor ID payload [RFC 3947] method set to=109 Nov 09 15:21:48.994 003 "my_vpn_name" #1: received Vendor ID payload [Dead Peer Detection] Nov 09 15:21:48.994 106 "my_vpn_name" #1: STATE_MAIN_I2: sent MI2, expecting MR2 Nov 09 15:21:48.994 003 "my_vpn_name" #1: NAT-Traversal: Result using RFC 3947 (NAT-Traversal): i am NATed Nov 09 15:21:48.994 108 "my_vpn_name" #1: STATE_MAIN_I3: sent MI3, expecting MR3 Nov 09 15:21:48.994 004 "my_vpn_name" #1: STATE_MAIN_I4: ISAKMP SA established {auth=OAKLEY_PRESHARED_KEY cipher=oakley_3des_cbc_192 prf=oakley_sha group=modp1024} Nov 09 15:21:48.995 117 "my_vpn_name" #2: STATE_QUICK_I1: initiate Nov 09 15:21:48.995 004 "my_vpn_name" #2: STATE_QUICK_I2: sent QI2, IPsec SA established transport mode {ESP=>0x0c96795d <0x483e1a42 xfrm=AES_128-HMAC_SHA1 NATOA=none NATD=none DPD=none} Nov 09 15:21:49.996 [ERROR 210] Failed to open l2tp control file 'c my_vpn_name' and from syslog: Nov 9 15:21:46 o99 L2tpIPsecVpnControlDaemon: Opening client connection Nov 9 15:21:46 o99 L2tpIPsecVpnControlDaemon: Executing command ipsec setup stop Nov 9 15:21:46 o99 ipsec_setup: Stopping Openswan IPsec... Nov 9 15:21:48 o99 kernel: [ 4350.245171] NET: Unregistered protocol family 15 Nov 9 15:21:48 o99 ipsec_setup: ...Openswan IPsec stopped Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command ipsec setup stop finished with exit code 0 Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Executing command invoke-rc.d xl2tpd stop Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command invoke-rc.d xl2tpd stop finished with exit code 0 Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Opening client connection Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Closing client connection Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Executing command ipsec setup start Nov 9 15:21:48 o99 kernel: [ 4350.312483] NET: Registered protocol family 15 Nov 9 15:21:48 o99 ipsec_setup: Starting Openswan IPsec U2.6.23/K2.6.32-49-generic... Nov 9 15:21:48 o99 ipsec_setup: Using NETKEY(XFRM) stack Nov 9 15:21:48 o99 kernel: [ 4350.410774] Initializing XFRM netlink socket Nov 9 15:21:48 o99 kernel: [ 4350.413601] padlock: VIA PadLock not detected. Nov 9 15:21:48 o99 kernel: [ 4350.427311] padlock: VIA PadLock Hash Engine not detected. Nov 9 15:21:48 o99 kernel: [ 4350.441533] padlock: VIA PadLock not detected. Nov 9 15:21:48 o99 ipsec_setup: ...Openswan IPsec started Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command ipsec setup start finished with exit code 0 Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Executing command invoke-rc.d xl2tpd start Nov 9 15:21:48 o99 ipsec__plutorun: adjusting ipsec.d to /etc/ipsec.d Nov 9 15:21:48 o99 pluto: adjusting ipsec.d to /etc/ipsec.d Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command invoke-rc.d xl2tpd start finished with exit code 0 Nov 9 15:21:48 o99 ipsec__plutorun: 002 added connection description "my_vpn_name" Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Executing command ipsec auto --ready Nov 9 15:21:48 o99 ipsec__plutorun: 003 NAT-Traversal: Trying new style NAT-T Nov 9 15:21:48 o99 ipsec__plutorun: 003 NAT-Traversal: ESPINUDP(1) setup failed for new style NAT-T family IPv4 (errno=19) Nov 9 15:21:48 o99 ipsec__plutorun: 003 NAT-Traversal: Trying old style NAT-T Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command ipsec auto --ready finished with exit code 0 Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Executing command ipsec auto --up my_vpn_name Nov 9 15:21:48 o99 L2tpIPsecVpnControlDaemon: Command ipsec auto --up my_vpn_name finished with exit code 0 Nov 9 15:21:49 o99 L2tpIPsecVpnControlDaemon: Closing client connection Can anyone tell me something more about that? Where is the mistake?

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• What's wrong with this vcl config for varnish-cache as load balancer?

  - by dabito

  I have the current configurations active on my default.vcl varnish file on the machine that balances the load for other two machines (the other two machines also have varnish active). My intention is to have this server do only the load balancing and the other machines do the processing and also their own caching. My problem is that even with the config testing (not even a stress test or anything, just a few requests a minute) I get the guru meditation error and have to restart varnish. This is the default.vcl for the load balancing server: backend vader { .host = "app1.server.com"; .probe = { .url = "/"; .interval = 10s; .timeout = 4s; .window = 5; .threshold = 3; } } backend malgus { .host = "app2.server.com"; .probe = { .url = "/"; .interval = 10s; .timeout = 4s; .window = 5; .threshold = 3; } } director dooku round-robin { { .backend = vader; } { .backend = malgus; } } sub vcl_recv { if (req.http.host ~ "^balancer.server.com$") { set req.backend = dooku; } } Am I doing something wrong or missing something? EDIT: This is varnishlog's output: 0 CLI - Rd ping 0 CLI - Wr 200 19 PONG 1345839995 1.0 0 CLI - Rd ping 0 CLI - Wr 200 19 PONG 1345839998 1.0 0 CLI - Rd ping 0 CLI - Wr 200 19 PONG 1345840001 1.0 0 Backend_health - malgus Still sick 4--X--- 0 3 5 0.000000 3.846876 0 Backend_health - vader Still sick 4--X--- 0 3 5 0.000000 3.839194 0 CLI - Rd ping 0 CLI - Wr 200 19 PONG 1345840004 1.0 14 SessionOpen c 10.150.7.151 38272 :80 14 ReqStart c 10.150.7.151 38272 458200540 14 RxRequest c GET 14 RxURL c / 14 RxProtocol c HTTP/1.1 14 RxHeader c Host: dooku-dev.excelsior.com 14 RxHeader c Connection: keep-alive 14 RxHeader c User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.47 Safari/536.11 14 RxHeader c Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 14 RxHeader c Accept-Encoding: gzip,deflate,sdch 14 RxHeader c Accept-Language: en-US,en;q=0.8,es-419;q=0.6,es;q=0.4 14 RxHeader c Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 14 RxHeader c Cookie: SESSa87d6c6da0c61037a9169122dc5e4a19=HR_0Srhgc-uDArT3aJFzOBy31FtzneTXg38byr1eGMU; __atuvc=4%7C33 14 VCL_call c recv pass 14 VCL_call c hash 14 Hash c / 14 Hash c dooku-dev.excelsior.com 14 VCL_return c hash 14 VCL_call c pass pass 14 FetchError c no backend connection 14 VCL_call c error deliver 14 VCL_call c deliver deliver 14 TxProtocol c HTTP/1.1 14 TxStatus c 503 14 TxResponse c Service Unavailable 14 TxHeader c Server: Varnish 14 TxHeader c Content-Type: text/html; charset=utf-8 14 TxHeader c Retry-After: 5 14 TxHeader c Content-Length: 418 14 TxHeader c Accept-Ranges: bytes 14 TxHeader c Date: Fri, 24 Aug 2012 20:26:44 GMT 14 TxHeader c X-Varnish: 458200540 14 TxHeader c Age: 0 14 TxHeader c Via: 1.1 varnish 14 TxHeader c Connection: close 14 Length c 418 14 ReqEnd c 458200540 1345840004.916415691 1345840004.965190172 0.020933390 0.048741817 0.000032663 14 SessionClose c error 14 StatSess c 10.150.7.151 38272 0 1 1 0 1 0 256 418 14 SessionOpen c 10.150.7.151 38273 :80 14 ReqStart c 10.150.7.151 38273 458200541 14 RxRequest c GET 14 RxURL c /favicon.ico 14 RxProtocol c HTTP/1.1 14 RxHeader c Host: dooku-dev.excelsior.com 14 RxHeader c Connection: keep-alive 14 RxHeader c Accept: */* 14 RxHeader c User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.47 Safari/536.11 14 RxHeader c Accept-Encoding: gzip,deflate,sdch 14 RxHeader c Accept-Language: en-US,en;q=0.8,es-419;q=0.6,es;q=0.4 14 RxHeader c Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3 14 RxHeader c Cookie: SESSa87d6c6da0c61037a9169122dc5e4a19=HR_0Srhgc-uDArT3aJFzOBy31FtzneTXg38byr1eGMU; __atuvc=4%7C33 14 VCL_call c recv pass 14 VCL_call c hash 14 Hash c /favicon.ico 14 Hash c dooku-dev.excelsior.com 14 VCL_return c hash 14 VCL_call c pass pass 14 FetchError c no backend connection 14 VCL_call c error deliver 14 VCL_call c deliver deliver 14 TxProtocol c HTTP/1.1 14 TxStatus c 503 14 TxResponse c Service Unavailable 14 TxHeader c Server: Varnish 14 TxHeader c Content-Type: text/html; charset=utf-8 14 TxHeader c Retry-After: 5 14 TxHeader c Content-Length: 418 14 TxHeader c Accept-Ranges: bytes 14 TxHeader c Date: Fri, 24 Aug 2012 20:26:45 GMT 14 TxHeader c X-Varnish: 458200541 14 TxHeader c Age: 0 14 TxHeader c Via: 1.1 varnish 14 TxHeader c Connection: close 14 Length c 418 14 ReqEnd c 458200541 1345840005.226389885 1345840005.226457834 0.000026941 0.000043154 0.000024796 14 SessionClose c error 14 StatSess c 10.150.7.151 38273 0 1 1 0 1 0 256 418

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• Apache SSL reverse proxy to a Embed Tomcat

  - by ggarcia24

  I'm trying to put in place a reverse proxy for an application that is running a tomcat embed server over SSL. The application needs to run over SSL on the port 9002 so I have no way of "disabling SSL" for this app. The current setup schema looks like this: [192.168.0.10:443 - Apache with mod_proxy] --> [192.168.0.10:9002 - Tomcat App] After googling on how to make such a setup (and testing) I came across this: https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/861137 Which lead to make my current configuration (to try to emulate the --secure-protocol=sslv3 option of wget) /etc/apache2/sites/enabled/default-ssl: <VirtualHost _default_:443> SSLEngine On SSLCertificateFile /etc/ssl/certs/ssl-cert-snakeoil.pem SSLCertificateKeyFile /etc/ssl/private/ssl-cert-snakeoil.key SSLProxyEngine On SSLProxyProtocol SSLv3 SSLProxyCipherSuite SSLv3 ProxyPass /test/ https://192.168.0.10:9002/ ProxyPassReverse /test/ https://192.168.0.10:9002/ LogLevel debug ErrorLog /var/log/apache2/error-ssl.log CustomLog /var/log/apache2/access-ssl.log combined </VirtualHost> The thing is that the error log is showing error:14077102:SSL routines:SSL23_GET_SERVER_HELLO:unsupported protocol Complete request log: [Wed Mar 13 20:05:57 2013] [debug] mod_proxy.c(1020): Running scheme https handler (attempt 0) [Wed Mar 13 20:05:57 2013] [debug] mod_proxy_http.c(1973): proxy: HTTP: serving URL https://192.168.0.10:9002/ [Wed Mar 13 20:05:57 2013] [debug] proxy_util.c(2011): proxy: HTTPS: has acquired connection for (192.168.0.10) [Wed Mar 13 20:05:57 2013] [debug] proxy_util.c(2067): proxy: connecting https://192.168.0.10:9002/ to 192.168.0.10:9002 [Wed Mar 13 20:05:57 2013] [debug] proxy_util.c(2193): proxy: connected / to 192.168.0.10:9002 [Wed Mar 13 20:05:57 2013] [debug] proxy_util.c(2444): proxy: HTTPS: fam 2 socket created to connect to 192.168.0.10 [Wed Mar 13 20:05:57 2013] [debug] proxy_util.c(2576): proxy: HTTPS: connection complete to 192.168.0.10:9002 (192.168.0.10) [Wed Mar 13 20:05:57 2013] [info] [client 192.168.0.10] Connection to child 0 established (server demo1agrubu01.demo.lab:443) [Wed Mar 13 20:05:57 2013] [info] Seeding PRNG with 656 bytes of entropy [Wed Mar 13 20:05:57 2013] [debug] ssl_engine_kernel.c(1866): OpenSSL: Handshake: start [Wed Mar 13 20:05:57 2013] [debug] ssl_engine_kernel.c(1874): OpenSSL: Loop: before/connect initialization [Wed Mar 13 20:05:57 2013] [debug] ssl_engine_kernel.c(1874): OpenSSL: Loop: unknown state [Wed Mar 13 20:05:57 2013] [debug] ssl_engine_io.c(1897): OpenSSL: read 7/7 bytes from BIO#7f122800a100 [mem: 7f1230018f60] (BIO dump follows) [Wed Mar 13 20:05:57 2013] [debug] ssl_engine_io.c(1830): +-------------------------------------------------------------------------+ [Wed Mar 13 20:05:57 2013] [debug] ssl_engine_io.c(1869): | 0000: 15 03 01 00 02 02 50 ......P | [Wed Mar 13 20:05:57 2013] [debug] ssl_engine_io.c(1875): +-------------------------------------------------------------------------+ [Wed Mar 13 20:05:57 2013] [debug] ssl_engine_kernel.c(1903): OpenSSL: Exit: error in unknown state [Wed Mar 13 20:05:57 2013] [info] [client 192.168.0.10] SSL Proxy connect failed [Wed Mar 13 20:05:57 2013] [info] SSL Library Error: 336032002 error:14077102:SSL routines:SSL23_GET_SERVER_HELLO:unsupported protocol [Wed Mar 13 20:05:57 2013] [info] [client 192.168.0.10] Connection closed to child 0 with abortive shutdown (server example1.domain.tld:443) [Wed Mar 13 20:05:57 2013] [error] (502)Unknown error 502: proxy: pass request body failed to 172.31.4.13:9002 (192.168.0.10) [Wed Mar 13 20:05:57 2013] [error] [client 192.168.0.10] proxy: Error during SSL Handshake with remote server returned by /dsfe/ [Wed Mar 13 20:05:57 2013] [error] proxy: pass request body failed to 192.168.0.10:9002 (172.31.4.13) from 172.31.4.13 () [Wed Mar 13 20:05:57 2013] [debug] proxy_util.c(2029): proxy: HTTPS: has released connection for (172.31.4.13) [Wed Mar 13 20:05:57 2013] [debug] ssl_engine_kernel.c(1884): OpenSSL: Write: SSL negotiation finished successfully [Wed Mar 13 20:05:57 2013] [info] [client 192.168.0.10] Connection closed to child 6 with standard shutdown (server example1.domain.tld:443) If I do a wget --secure-protocol=sslv3 --no-check-certificate https://192.168.0.10:9002/ it works perfectly, but from apache is not working. I'm on an Ubuntu Server with the latest updates running apache2 with mod_proxy and mod_ssl enabled: ~$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu 12.04.2 LTS" ~# dpkg -s apache2 ... Version: 2.2.22-1ubuntu1.2 ... ~# dpkg -s openssl ... Version: 1.0.1-4ubuntu5.7 ... Hope that anyone may help

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• Exchange 2003 mail non-delivery (NDR), spam activity? events 7002 & 7004

  - by HighTechGeek

  Windows Server 2003 Small Business Server SP2 Exchange Version 6.5 (Build 7638.2: Service Pack 2) This network has been neglected and has been having email problems for years and was on many blacklists. I was called in after the server eventually crashed... I got the server back up and running, but email problems persist. Outgoing mail delivery is sporadic. Sometimes the mail goes through, sometimes a delayed delivery report is generated after a day or more, and sometimes it seems to go through, but the recipient never receives it. Not sure if spammers are successfully using the server as a relay (see event entries below after turning on maximum SMTP logging)... User PCs infected with viruses and server was blacklisted on many sites (I used mxtoolbox.com) I have cleaned all the PCs and changed all passwords (including administrator) I have requested removal from all of the blacklists - most have removed the listing, some take more time. I have setup rDNS pointer records with the ISP (Comcast) - that was one reason for some of the blacklistings. I have tested that it's not an open relay using telnet as described here: www.amset.info/exchange/smtp-openrelay.asp I followed the advise of a Spamhaus & Microsoft article to enable maximum SMTP logging. http://www.spamhaus.org/faq/answers.lasso?section=isp%20spam%20issues#320 which directed me to Microsoft KB article 895853, specifically, the part 2/3 down titled: "If mail relay occurs from an account on an Exchange computer that is not configured as an open relay" . The Application Event Log is filling with this type of activity (Event ID 7002, 7002 & 3018 errors): Event Type: Error Event Source: MSExchangeTransport Event Category: SMTP Protocol Event ID: 7004 Date: 1/18/2011 Time: 7:33:29 AM User: N/A Computer: SERVER Description: This is an SMTP protocol error log for virtual server ID 1, connection #621. The remote host "212.52.84.180", responded to the SMTP command "rcpt" with "550 #5.1.0 Address rejected [email protected] ". The full command sent was "RCPT TO: ". This will probably cause the connection to fail. and this: Event Type: Warning Event Source: MSExchangeTransport Event Category: SMTP Protocol Event ID: 7002 Date: 1/18/2011 Time: 7:33:29 AM User: N/A Computer: SERVER Description: This is an SMTP protocol warning log for virtual server ID 1, connection #620. The remote host "212.52.84.170", responded to the SMTP command "rcpt" with "452 Too many recipients received this hour ". The full command sent was "RCPT TO: ". This may cause the connection to fail. or a variant of: Event Type: Warning Event Source: MSExchangeTransport Event Category: SMTP Protocol Event ID: 7002 Date: 1/18/2011 Time: 8:39:21 AM User: N/A Computer: SERVER Description: This is an SMTP protocol warning log for virtual server ID 1, connection #661. The remote host "82.57.200.133", responded to the SMTP command "rcpt" with "421 Service not available - too busy ". The full command sent was "RCPT TO: ". This may cause the connection to fail. also Event Type: Error Event Source: MSExchangeTransport Event Category: NDR Event ID: 3018 Date: 1/18/2011 Time: 9:49:37 AM User: N/A Computer: SERVER Description: A non-delivery report with a status code of 5.4.0 was generated for recipient rfc822;[email protected] (Message-ID ). Causes: This message indicates a DNS problem or an IP address configuration problem Solution: Check the DNS using nslookup or dnsq. Verify the IP address is in IPv4 literal format. Data: 0000: ef 02 04 c0 ï..À Any guidance and/or suggestions and/or tests to perform would be greatly appreciated.

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• mysql master-master setup as a way to simply master-slave promotion

  - by Chris Go

  I'm trying to see if the following plan is viable. Goal here is to be able to do HA (uptime) and not necessarily for load -- writes are fine on one MySQL 5.5 server (with innodb) but not really possible when the database is down. Currently, I have a master-slave replication setup which works fine except it doesn't have automatic promotion (obviously). what I am planning on doing is setup master-master replication to possibly do this "automatic promotion" using Amazon Route 53 DNS Failover (Health checks). What I am trying to avoid is to NOT have to do the auto-increment trick because the "business folks" got used to the auto-incrementing PK as consecutive numbers (yeah, I know this is bad but data is from 2004). So, setup the master-master replication WITHOUT the auto-increment collision prevention bit. The primary master is db1.domain.com and secondary master is db2.domain.com In Amazon Route 53, setup DNS Failover record for db.domain.com - primary failover is db1.domain.com - with a TCP healthcheck on IP address port 3306 - secondary failover is db2.domain.com - with a TCP healthcheck on IP address port 3306 Most of the time (99%), unless tcp://db1.domain.com:3306 is dead, db1.domain.com will be served up on DNS hits to db.domain.com. In fact, hopefully this is 100%. The possible downsides of this is the loss of a primary key (collision) and I think I am OK with losing one order. We are a low data volume B2B business and can just call our client up if this occurs (like an order disappearing). Does this sound like a good plan? Then I will also run another slave replication on db1.domain.com as "master" to a slave-db1.domain.com -- not sure why, maybe for heavy SELECTs?

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• ipvsadm lists a few hosts by IP only, rest by name

  - by dmourati

  We use keepalived to manage our Linux Virtual Server (LVS) load balancer. The LVS VIPs are setup to use a FWMARK as configured in iptables. virtual_server fwmark 300000 { delay_loop 10 lb_algo wrr lb_kind NAT persistence_timeout 180 protocol TCP real_server 10.10.35.31 { weight 24 MISC_CHECK { misc_path "/usr/local/sbin/check_php_wrapper.sh 10.10.35.31" misc_timeout 30 } } real_server 10.10.35.32 { weight 24 MISC_CHECK { misc_path "/usr/local/sbin/check_php_wrapper.sh 10.10.35.32" misc_timeout 30 } } real_server 10.10.35.33 { weight 24 MISC_CHECK { misc_path "/usr/local/sbin/check_php_wrapper.sh 10.10.35.33" misc_timeout 30 } } real_server 10.10.35.34 { weight 24 MISC_CHECK { misc_path "/usr/local/sbin/check_php_wrapper.sh 10.10.35.34" misc_timeout 30 } } } http://www.austintek.com/LVS/LVS-HOWTO/HOWTO/LVS-HOWTO.fwmark.html [root@lb1 ~]# iptables -L -n -v -t mangle Chain PREROUTING (policy ACCEPT 182G packets, 114T bytes) 190M 167G MARK tcp -- * * 0.0.0.0/0 w1.x1.y1.4 multiport dports 80,443 MARK set 0x493e0 62M 58G MARK tcp -- * * 0.0.0.0/0 w1.x1.y2.4 multiport dports 80,443 MARK set 0x493e0 [root@lb1 ~]# ipvsadm -L IP Virtual Server version 1.2.1 (size=4096) Prot LocalAddress:Port Scheduler Flags -> RemoteAddress:Port Forward Weight ActiveConn InActConn FWM 300000 wrr persistent 180 -> 10.10.35.31:0 Masq 24 1 0 -> dis2.domain.com:0 Masq 24 3 231 -> 10.10.35.33:0 Masq 24 0 208 -> 10.10.35.34:0 Masq 24 0 0 At the time the realservers were setup, there was a misconfigured dns for some hosts in the 10.10.35.0/24 network. Thereafter, we fixed the DNS. However, the hosts continue to show up as only their IP numbers (10.10.35.31,10.10.35.33,10.10.35.34) above. [root@lb1 ~]# host 10.10.35.31 31.35.10.10.in-addr.arpa domain name pointer dis1.domain.com. OS is CentOS 6.3. Ipvsadm is ipvsadm-1.25-10.el6.x86_64. kernel is kernel-2.6.32-71.el6.x86_64. Keepalived is keepalived-1.2.7-1.el6.x86_64. How can we get ipvsadm -L to list all realservers by their proper hostnames?

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• pfsense 2.0.1 Firewall SMB Share not showing up under network

  - by atrueresistance

  I have a freenas NAS with a SMB share running at 192.168.2.2 of a 192.168.2.0/28 network. Gateway is 192.168.2.1. Originally this was running on a switch with my LAN, but now having upgraded to new hardware the Freenas has it's own port on the firewall. Before the switch the freenas would show up under Network on a windows 7 box and an OSX Lion box as freenas{wins} or CIFS shares on freenas{osx} so I know it doesn't have anything do to with the freenas. Here are my pfsense rules. ID Proto Source Port Destination Port Gateway Queue Schedule Description PASS TCP FREENAS net * LAN net 139 (NetBIOS-SSN) * none cifs lan passthrough PASS TCP FREENAS net * LAN net 389 (LDAP) * none cifs lan passthrough PASS TCP FREENAS net * LAN net 445 (MS DS) * none cifs lan passthrough PASS UDP FREENAS net * LAN net 137 (NetBIOS-NS) * none cifs lan passthrough PASS UDP FREENAS net * LAN net 138 (NetBIOS-DGM) * none cifs lan passthrough BLOCK * FREENAS net * LAN net * * none BLOCK * FREENAS net * OPTZONE net * * none BLOCK * FREENAS net * 192.168.2.1 * * none PASS * FREENAS net * * * * none BLOCK * * * * * * none I can connect if I use \\192.168.2.2 and enter the correct login details. I would just like this to show up on the network. Nothing in the log seems to be blocked when I filter by 192.168.2.2. What port am I missing for SMB to show up under the network and not have to connect by IP? ps. Do I really need the LDAP rule?

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• Fortinet: Is there any equivalent of the ASA's packet-tracer command?

  - by Kedare

  I would like to know if there is not Fortigates an equivalent of the packet-tracer command that we can find on the ASA. Here is an example of execution for those who don't know it: NAT and pass : lev5505# packet-tracer input inside tcp 192.168.3.20 9876 8.8.8.8 80 Phase: 1 Type: ACCESS-LIST Subtype: Result: ALLOW Config: Implicit Rule Additional Information: MAC Access list Phase: 2 Type: ROUTE-LOOKUP Subtype: input Result: ALLOW Config: Additional Information: in 0.0.0.0 0.0.0.0 outside Phase: 3 Type: ACCESS-LIST Subtype: log Result: ALLOW Config: access-group inside-in in interface inside access-list inside-in extended permit tcp any any eq www access-list inside-in remark Allows DNS Additional Information: Phase: 4 Type: IP-OPTIONS Subtype: Result: ALLOW Config: Additional Information: Phase: 5 Type: VPN Subtype: ipsec-tunnel-flow Result: ALLOW Config: Additional Information: Phase: 6 Type: NAT Subtype: Result: ALLOW Config: object network inside-network nat (inside,outside) dynamic interface Additional Information: Dynamic translate 192.168.3.20/9876 to 81.56.15.183/9876 Phase: 7 Type: IP-OPTIONS Subtype: Result: ALLOW Config: Additional Information: Phase: 8 Type: FLOW-CREATION Subtype: Result: ALLOW Config: Additional Information: New flow created with id 94755, packet dispatched to next module Result: input-interface: inside input-status: up input-line-status: up output-interface: outside output-status: up output-line-status: up Action: allow Blocked by ACL: lev5505# packet-tracer input inside tcp 192.168.3.20 9876 8.8.8.8 81 Phase: 1 Type: ROUTE-LOOKUP Subtype: input Result: ALLOW Config: Additional Information: in 0.0.0.0 0.0.0.0 outside Phase: 2 Type: ACCESS-LIST Subtype: Result: DROP Config: Implicit Rule Additional Information: Result: input-interface: inside input-status: up input-line-status: up output-interface: outside output-status: up output-line-status: up Action: drop Drop-reason: (acl-drop) Flow is denied by configured rule Is there any equivalent on the Fortigates ?

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• Why does my Belkin wireless router has eMule port open?

  - by Jeremy Powell

  I have a Belkin F6D4230-4 v1 router. When I port scan it with nmap I get the following: $ sudo nmap -sS -A -T5 192.168.2.1 -p- Starting Nmap 5.00 ( http://nmap.org ) at 2010-04-17 11:40 CDT Interesting ports on 192.168.2.1: Not shown: 65532 closed ports PORT STATE SERVICE VERSION 80/tcp open http Belkin 2307 wifi router http config (IP_SHARER httpd 1.0) |_ html-title: '+i1+' 4661/tcp filtered unknown 4662/tcp filtered edonkey MAC Address: 00:22:75:5D:52:D8 (Belkin International) Device type: WAP|broadband router|firewall|printer|specialized|webcam Running (JUST GUESSING) : Linksys embedded (95%), TRENDnet embedded (95%), Netgear embedded (92%), Canon embedded (89%), On Time RTOS (89%), Symantec embedded (89%), D-Link embedded (86%), Polycom embedded (85%) Aggressive OS guesses: Linksys WRT54GC or TRENDnet TEW-431BRP wireless broadband router (95%), TRENDnet TW100-BRF114 broadband router (95%), Netgear FR114P ProSafe VPN firewall (92%), Canon PIXMA MX850 printer (89%), On Time RTOS (89%), Symantec Firewall/VPN 100 (89%), D-Link DI-714P+ wireless broadband router (86%), Polycom ViewStation video conferencing system (85%) No exact OS matches for host (test conditions non-ideal). Network Distance: 1 hop Service Info: Device: WAP OS and Service detection performed. Please report any incorrect results at http://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 21.57 seconds Why are the 4461 and 4462 ports open? This is a basic, out-of-the-box installation.

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• NAT, iptables and problematic ports

  - by Rajie

  I am building a small office network with virtual machines. My schema is this: Computer A: gateway, ip 1.1.1.1, iptables used for NAT [eth0=public internet dhcp, dhcp; eth1=gateway] Computer B: client, ip 1.1.1.2, using gateway from Computer A. NAT is working, and Computer B can access the internet using the A's gateway. I redirected some incoming ports from A to B (for instance, if A receives a request to port 80, it goes automatically to Computer B's Apache). The thing is that I do not really understand how to open/close ports for Computer B from Computer A. I know how to close a port: iptables -A INPUT -p tcp --dport 80 -j DROP And it will refuse all incoming (not output) connections to port 80. However, this works for main interface eth0. I tried to, for instance, drop ingoing and outgoing connections for Computer B, port 80: iptables -A FORWARD -i eth1 -o eth0 -p tcp --dport 80 -j DROP iptables -A FORWARD -i eth0 -o eth1 -p tcp --dport 80 -j DROP But it does not work. And I cannot figure out what I am doing wrong. Any clue?

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• Error 720 on VPN (PPTP) attempt

  - by Andy Shulman

  When I attempt to connect to a server running XP x64 (so essentially Server 2003) using a PPTP connection, it fails with client-side error Registering your computer on the network... Error 720: A connection to the remote computer could not be established. You might need to change the network settings for this configuration. and server-side error Event ID: 20050 The user WINSERV3\Andy connected to port VPN8-1 has been disconnected because no network protocols were successfully negotiated. I have configured the router to pass both TCP packets on 1723 and GRE packets. I have used Wireshark (filtering out ARP, UDP, and all TCP ports other than 1723) to observe the packets received by the server. Wireshark does not explicitly name any protocol GRE, but it does tell me the server sent and received TCP, PPTP, PPP LCP, PPP CHAP, PPP CBCP, and PPP IPCP. The connection seems to go wrong at packet 30, where the protocol is PPP LCP, with the payload of the packet being labeled "Protocol Reject". Obviously, this is going from server to client. This would seem to lead to the conclusion that there is something wrong with my client, which runs Windows 7 Ultimate x64. However, it is able to connect to my house's router, which runs the DD-WRT firmware and is thus a PPTP endpoint. I'm thoroughly at a loss. Please help!

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• WAMP server not starting and a mystery service is using port 80

  - by David Gard

  I'm using WAMP on Windows 7 and tonight I'm unable to start it (it's been working fine for about 3 years previously). I first checked the logs, but nothing in there. So I checked the Windows Event Viewer (eventvwr), where I saw 2x errors for each attempted start - The Apache service named reported the following error: (OS 10048)Only one usage of each socket address (protocol/network address/port) is normally permitted. : make_sock: could not bind to address 0.0.0.0:80. The Apache service named reported the following error: no listening sockets available, shutting down. After this, I opened the command prompt and ran netstat -a, and to my surprise there were 3 entries for port 80 - Prot   Local Address  Foreign Address   State TCP   127.0.0.1:80       MyPCName:53831   TIME_WAIT TCP   127.0.0.1:80       MyPCName:57834   TIME_WAIT TCP   127.0.0.1:80       MyPCName:57839   TIME_WAIT From here, I'm kind of lost. As far as I can tell, something is utalising port 80, but I don't know what or why. If anyone is able to suggest what I might do next I'd be most greatful. Thanks.

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• using pf for packet filtering and ipfw's dummynet for bandwidth limiting at the same time

  - by krdx

  I would like to ask if it's fine to use pf for all packet filtering (including using altq for traffic shaping) and ipfw's dummynet for bandwidth limiting certain IPs or subnets at the same time. I am using FreeBSD 10 and I couldn't find a definitive answer to this. Googling returns such results as: It works It doesn't work Might work but it's not stable and not recommended It can work as long as you load the kernel modules in the right order It used to work but with recent FreeBSD versions it doesn't You can make it work provided you use a patch from pfsense Then there's a mention that this patch might had been merged back to FreeBSD, but I can't find it. One certain thing is that pfsense uses both firewalls simultaneously so the question is, is it possible with stock FreeBSD 10 (and where to obtain the patch if it's still necessary). For reference here's a sample of what I have for now and how I load things /etc/rc.conf ifconfig_vtnet0="inet 80.224.45.100 netmask 255.255.255.0 -rxcsum -txcsum" ifconfig_vtnet1="inet 10.20.20.1 netmask 255.255.255.0 -rxcsum -txcsum" defaultrouter="80.224.45.1" gateway_enable="YES" firewall_enable="YES" firewall_script="/etc/ipfw.rules" pf_enable="YES" pf_rules="/etc/pf.conf" /etc/pf.conf WAN1="vtnet0" LAN1="vtnet1" set skip on lo0 set block-policy return scrub on $WAN1 all fragment reassemble scrub on $LAN1 all fragment reassemble altq on $WAN1 hfsc bandwidth 30Mb queue { q_ssh, q_default } queue q_ssh bandwidth 10% priority 2 hfsc (upperlimit 99%) queue q_default bandwidth 90% priority 1 hfsc (default upperlimit 99%) nat on $WAN1 from $LAN1:network to any -> ($WAN1) block in all block out all antispoof quick for $WAN1 antispoof quick for $LAN1 pass in on $WAN1 inet proto icmp from any to $WAN1 keep state pass in on $WAN1 proto tcp from any to $WAN1 port www pass in on $WAN1 proto tcp from any to $WAN1 port ssh pass out quick on $WAN1 proto tcp from $WAN1 to any port ssh queue q_ssh keep state pass out on $WAN1 keep state pass in on $LAN1 from $LAN1:network to any keep state /etc/ipfw.rules ipfw -q -f flush ipfw -q add 65534 allow all from any to any ipfw -q pipe 1 config bw 2048KBit/s ipfw -q pipe 2 config bw 2048KBit/s ipfw -q add pipe 1 ip from any to 10.20.20.4 via vtnet1 out ipfw -q add pipe 2 ip from 10.20.20.4 to any via vtnet1 in

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• Error applying iptables rules using iptables-restore

  - by John Franic

  Hi I'm using Ubuntu 9.04 on a VPS. I'm getting an error if I apply a iptables rule. Here is what I have done. 1.Saved the existing rules iptables-save /etc/iptables.up.rules Created iptables.test.rules and add some rules to it nano /etc/iptables.test.rulesnano /etc/iptables.test.rules This is the rules I added *filter # Allows all loopback (lo0) traffic and drop all traffic to 127/8 that doesn't use lo0 -A INPUT -i lo -j ACCEPT -A INPUT -i ! lo -d 127.0.0.0/8 -j REJECT # Accepts all established inbound connections -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT # Allows all outbound traffic # You can modify this to only allow certain traffic -A OUTPUT -j ACCEPT # Allows HTTP and HTTPS connections from anywhere (the normal ports for websites) -A INPUT -p tcp --dport 80 -j ACCEPT -A INPUT -p tcp --dport 443 -j ACCEPT # Allows SSH connections # # THE -dport NUMBER IS THE SAME ONE YOU SET UP IN THE SSHD_CONFIG FILE # -A INPUT -p tcp -m state --state NEW --dport 22- j ACCEPT # Allow ping -A INPUT -p icmp -m icmp --icmp-type 8 -j ACCEPT # log iptables denied calls -A INPUT -m limit --limit 5/min -j LOG --log-prefix "iptables denied: " --log-level 7 # Reject all other inbound - default deny unless explicitly allowed policy -A INPUT -j REJECT -A FORWARD -j REJECT COMMIT After editing when I try to apply the rules by iptables-restore < /etc/iptables.test.rules I get the following error iptables-restore: line 42 failed Line 42 is COMMIT and I comment that out I get iptables-restore: COMMIT expected at line 43 I'm not sure what is the problem, it is expecting COMMIT but if COMMIT is there it's giving error. Could it be due to the fact i'm usin a VPS?My provider using OpenVZ for virtualizaton.

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• Cisco ASA: How to route PPPoE-assigned subnet?

  - by Martijn Heemels

  We've just received a fiber uplink, and I'm trying to configure our Cisco ASA 5505 to properly use it. The provider requires us to connect via PPPoE, and I managed to configure the ASA as a PPPoE client and establish a connection. The ASA is assigned an IP address by PPPoE, and I can ping out from the ASA to the internet, but I should have access to an entire /28 subnet. I can't figure out how to get that subnet configured on the ASA, so that I can route or NAT the available public addresses to various internal hosts. My assigned range is: 188.xx.xx.176/28 The address I get via PPPoE is 188.xx.xx.177/32, which according to our provider is our Default Gateway address. They claim the subnet is correctly routed to us on their side. How does the ASA know which range it is responsible for on the Fiber interface? How do I use the addresses from my range? To clarify my config; The ASA is currently configured to default-route to our ADSL uplink on port Ethernet0/0 (interface vlan2, nicknamed Outside). The fiber is connected to port Ethernet0/2 (interface vlan50, nicknamed Fiber) so I can configure and test it before making it the default route. Once I'm clear on how to set it all up, I'll fully replace the Outside interface with Fiber. My config (rather long): : Saved : ASA Version 8.3(2)4 ! hostname gw domain-name example.com enable password ****** encrypted passwd ****** encrypted names name 10.10.1.0 Inside-dhcp-network description Desktops and clients that receive their IP via DHCP name 10.10.0.208 svn.example.com description Subversion server name 10.10.0.205 marvin.example.com description LAMP development server name 10.10.0.206 dns.example.com description DNS, DHCP, NTP ! interface Vlan2 description Old ADSL WAN connection nameif outside security-level 0 ip address 192.168.1.2 255.255.255.252 ! interface Vlan10 description LAN vlan 10 Regular LAN traffic nameif inside security-level 100 ip address 10.10.0.254 255.255.0.0 ! interface Vlan11 description LAN vlan 11 Lab/test traffic nameif lab security-level 90 ip address 10.11.0.254 255.255.0.0 ! interface Vlan20 description LAN vlan 20 ISCSI traffic nameif iscsi security-level 100 ip address 10.20.0.254 255.255.0.0 ! interface Vlan30 description LAN vlan 30 DMZ traffic nameif dmz security-level 50 ip address 10.30.0.254 255.255.0.0 ! interface Vlan40 description LAN vlan 40 Guests access to the internet nameif guests security-level 50 ip address 10.40.0.254 255.255.0.0 ! interface Vlan50 description New WAN Corporate Internet over fiber nameif fiber security-level 0 pppoe client vpdn group KPN ip address pppoe ! interface Ethernet0/0 switchport access vlan 2 speed 100 duplex full ! interface Ethernet0/1 switchport trunk allowed vlan 10,11,30,40 switchport trunk native vlan 10 switchport mode trunk ! interface Ethernet0/2 switchport access vlan 50 speed 100 duplex full ! interface Ethernet0/3 shutdown ! interface Ethernet0/4 shutdown ! interface Ethernet0/5 switchport access vlan 20 ! interface Ethernet0/6 shutdown ! interface Ethernet0/7 shutdown ! boot system disk0:/asa832-4-k8.bin ftp mode passive clock timezone CEST 1 clock summer-time CEDT recurring last Sun Mar 2:00 last Sun Oct 3:00 dns domain-lookup inside dns server-group DefaultDNS name-server dns.example.com domain-name example.com same-security-traffic permit inter-interface same-security-traffic permit intra-interface object network inside-net subnet 10.10.0.0 255.255.0.0 object network svn.example.com host 10.10.0.208 object network marvin.example.com host 10.10.0.205 object network lab-net subnet 10.11.0.0 255.255.0.0 object network dmz-net subnet 10.30.0.0 255.255.0.0 object network guests-net subnet 10.40.0.0 255.255.0.0 object network dhcp-subnet subnet 10.10.1.0 255.255.255.0 description DHCP assigned addresses on Vlan 10 object network Inside-vpnpool description Pool of assignable addresses for VPN clients object network vpn-subnet subnet 10.10.3.0 255.255.255.0 description Address pool assignable to VPN clients object network dns.example.com host 10.10.0.206 description DNS, DHCP, NTP object-group service iscsi tcp description iscsi storage traffic port-object eq 3260 access-list outside_access_in remark Allow access from outside to HTTP on svn. access-list outside_access_in extended permit tcp any object svn.example.com eq www access-list Insiders!_splitTunnelAcl standard permit 10.10.0.0 255.255.0.0 access-list iscsi_access_in remark Prevent disruption of iscsi traffic from outside the iscsi vlan. access-list iscsi_access_in extended deny tcp any interface iscsi object-group iscsi log warnings ! snmp-map DenyV1 deny version 1 ! pager lines 24 logging enable logging timestamp logging asdm-buffer-size 512 logging monitor warnings logging buffered warnings logging history critical logging asdm errors logging flash-bufferwrap logging flash-minimum-free 4000 logging flash-maximum-allocation 2000 mtu outside 1500 mtu inside 1500 mtu lab 1500 mtu iscsi 9000 mtu dmz 1500 mtu guests 1500 mtu fiber 1492 ip local pool DHCP_VPN 10.10.3.1-10.10.3.20 mask 255.255.0.0 ip verify reverse-path interface outside no failover icmp unreachable rate-limit 10 burst-size 5 asdm image disk0:/asdm-635.bin asdm history enable arp timeout 14400 nat (inside,outside) source static any any destination static vpn-subnet vpn-subnet ! object network inside-net nat (inside,outside) dynamic interface object network svn.example.com nat (inside,outside) static interface service tcp www www object network lab-net nat (lab,outside) dynamic interface object network dmz-net nat (dmz,outside) dynamic interface object network guests-net nat (guests,outside) dynamic interface access-group outside_access_in in interface outside access-group iscsi_access_in in interface iscsi route outside 0.0.0.0 0.0.0.0 192.168.1.1 1 timeout xlate 3:00:00 timeout conn 1:00:00 half-closed 0:10:00 udp 0:02:00 icmp 0:00:02 timeout sunrpc 0:10:00 h323 0:05:00 h225 1:00:00 mgcp 0:05:00 mgcp-pat 0:05:00 timeout sip 0:30:00 sip_media 0:02:00 sip-invite 0:03:00 sip-disconnect 0:02:00 timeout sip-provisional-media 0:02:00 uauth 0:05:00 absolute timeout tcp-proxy-reassembly 0:01:00 dynamic-access-policy-record DfltAccessPolicy aaa-server SBS2003 protocol radius aaa-server SBS2003 (inside) host 10.10.0.204 timeout 5 key ***** aaa authentication enable console SBS2003 LOCAL aaa authentication ssh console SBS2003 LOCAL aaa authentication telnet console SBS2003 LOCAL http server enable http 10.10.0.0 255.255.0.0 inside snmp-server host inside 10.10.0.207 community ***** version 2c snmp-server location Server room snmp-server contact [email protected] snmp-server community ***** snmp-server enable traps snmp authentication linkup linkdown coldstart snmp-server enable traps syslog crypto ipsec transform-set TRANS_ESP_AES-256_SHA esp-aes-256 esp-sha-hmac crypto ipsec transform-set TRANS_ESP_AES-256_SHA mode transport crypto ipsec transform-set ESP-AES-256-MD5 esp-aes-256 esp-md5-hmac crypto ipsec transform-set ESP-DES-SHA esp-des esp-sha-hmac crypto ipsec transform-set ESP-DES-MD5 esp-des esp-md5-hmac crypto ipsec transform-set ESP-AES-192-MD5 esp-aes-192 esp-md5-hmac crypto ipsec transform-set ESP-3DES-MD5 esp-3des esp-md5-hmac crypto ipsec transform-set ESP-AES-256-SHA esp-aes-256 esp-sha-hmac crypto ipsec transform-set ESP-AES-128-SHA esp-aes esp-sha-hmac crypto ipsec transform-set ESP-AES-192-SHA esp-aes-192 esp-sha-hmac crypto ipsec transform-set ESP-AES-128-MD5 esp-aes esp-md5-hmac crypto ipsec transform-set ESP-3DES-SHA esp-3des esp-sha-hmac crypto ipsec security-association lifetime seconds 28800 crypto ipsec security-association lifetime kilobytes 4608000 crypto dynamic-map outside_dyn_map 20 set pfs group5 crypto dynamic-map outside_dyn_map 20 set transform-set TRANS_ESP_AES-256_SHA crypto dynamic-map SYSTEM_DEFAULT_CRYPTO_MAP 65535 set transform-set ESP-AES-128-SHA ESP-AES-128-MD5 ESP-AES-192-SHA ESP-AES-192-MD5 ESP-AES-256-SHA ESP-AES-256-MD5 ESP-3DES-SHA ESP-3DES-MD5 ESP-DES-SHA ESP-DES-MD5 crypto map outside_map 65535 ipsec-isakmp dynamic SYSTEM_DEFAULT_CRYPTO_MAP crypto map outside_map interface outside crypto isakmp enable outside crypto isakmp policy 1 authentication pre-share encryption 3des hash sha group 2 lifetime 86400 telnet 10.10.0.0 255.255.0.0 inside telnet timeout 5 ssh scopy enable ssh 10.10.0.0 255.255.0.0 inside ssh timeout 5 ssh version 2 console timeout 30 management-access inside vpdn group KPN request dialout pppoe vpdn group KPN localname INSIDERS vpdn group KPN ppp authentication pap vpdn username INSIDERS password ***** store-local dhcpd address 10.40.1.0-10.40.1.100 guests dhcpd dns 8.8.8.8 8.8.4.4 interface guests dhcpd update dns interface guests dhcpd enable guests ! threat-detection basic-threat threat-detection scanning-threat threat-detection statistics host number-of-rate 2 threat-detection statistics port number-of-rate 3 threat-detection statistics protocol number-of-rate 3 threat-detection statistics access-list threat-detection statistics tcp-intercept rate-interval 30 burst-rate 400 average-rate 200 ntp server dns.example.com source inside prefer webvpn group-policy DfltGrpPolicy attributes vpn-tunnel-protocol IPSec l2tp-ipsec group-policy Insiders! internal group-policy Insiders! attributes wins-server value 10.10.0.205 dns-server value 10.10.0.206 vpn-tunnel-protocol IPSec l2tp-ipsec split-tunnel-policy tunnelspecified split-tunnel-network-list value Insiders!_splitTunnelAcl default-domain value example.com username martijn password ****** encrypted privilege 15 username marcel password ****** encrypted privilege 15 tunnel-group DefaultRAGroup ipsec-attributes pre-shared-key ***** tunnel-group Insiders! type remote-access tunnel-group Insiders! general-attributes address-pool DHCP_VPN authentication-server-group SBS2003 LOCAL default-group-policy Insiders! tunnel-group Insiders! ipsec-attributes pre-shared-key ***** ! class-map global-class match default-inspection-traffic class-map type inspect http match-all asdm_medium_security_methods match not request method head match not request method post match not request method get ! ! policy-map type inspect dns preset_dns_map parameters message-length maximum 512 policy-map type inspect http http_inspection_policy parameters protocol-violation action drop-connection policy-map global-policy class global-class inspect dns inspect esmtp inspect ftp inspect h323 h225 inspect h323 ras inspect http inspect icmp inspect icmp error inspect mgcp inspect netbios inspect pptp inspect rtsp inspect snmp DenyV1 ! service-policy global-policy global smtp-server 123.123.123.123 prompt hostname context call-home profile CiscoTAC-1 no active destination address http https://tools.cisco.com/its/service/oddce/services/DDCEService destination address email [email protected] destination transport-method http subscribe-to-alert-group diagnostic subscribe-to-alert-group environment subscribe-to-alert-group inventory periodic monthly subscribe-to-alert-group configuration periodic monthly subscribe-to-alert-group telemetry periodic daily hpm topN enable Cryptochecksum:a76bbcf8b19019771c6d3eeecb95c1ca : end asdm image disk0:/asdm-635.bin asdm location svn.example.com 255.255.255.255 inside asdm location marvin.example.com 255.255.255.255 inside asdm location dns.example.com 255.255.255.255 inside asdm history enable

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