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  • can not access http://localhost/phpmyadmin/

    - by nik parsa
    I installed wamp server2 it didn't have password and it had this error below then I went to mysql and set the password for root with this command and I can login using this password but again I can not access phpmyadmin.I restarted the services too. update user.mysql set password=password('root') where user='root'; then i went to config.inc changed the pass to this one: $cfg['Servers'][$i]['password'] = 'root'; again I restarted and again no result. the phpmyadmin page: Welcome to phpMyAdmin Error MySQL said: Documentation #1045 - Access denied for user 'root'@'localhost' (using password: NO) phpMyAdmin tried to connect to the MySQL server, and the server rejected the connection. You should check the host, username and password in your configuration and make sure that they correspond to the information given by the administrator of the MySQL server. config.inc: <?php /* Servers configuration */ $i = 0; /* Server: localhost [1] */ $i++; $cfg['Servers'][$i]['verbose'] = 'localhost'; $cfg['Servers'][$i]['host'] = 'localhost'; $cfg['Servers'][$i]['port'] = ''; $cfg['Servers'][$i]['socket'] = ''; $cfg['Servers'][$i]['connect_type'] = 'tcp'; $cfg['Servers'][$i]['extension'] = 'mysqli'; $cfg['Servers'][$i]['auth_type'] = 'config'; $cfg['Servers'][$i]['user'] = 'root'; $cfg['Servers'][$i]['password'] = 'root'; $cfg['Servers'][$i]['AllowNoPassword'] = true; /* End of servers configuration */ $cfg['DefaultLang'] = 'en-utf-8'; $cfg['ServerDefault'] = 1; $cfg['UploadDir'] = ''; $cfg['SaveDir'] = ''; /* rajk - for blobstreaming */ $cfg['Servers'][$i]['bs_garbage_threshold'] = 50; $cfg['Servers'][$i]['bs_repository_threshold'] = '32M'; $cfg['Servers'][$i]['bs_temp_blob_timeout'] = 600; $cfg['Servers'][$i]['bs_temp_log_threshold'] = '32M'; ?> It was firstly this line $cfg['Servers'][$i]['password'] = ''; setting allow to false and restarting will not change the error either with the help of Erika I understood that it can't read confg.inc file how to make it read from this file?

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  • Connecting to localhost resolves 127.0.0.1 but connects with external IP [Linux, Debian]

    - by skgsergio
    I'm having a problem with a dedicated server, I don't known if it's the default behavior but this is the problem: If I connect to a service located on the server with localhost the service gets as source IP the external IP. Let me show an example, I use netcat for listening on 127.0.0.1:4444 xxxxxx # nc -vv -l -s 127.0.0.1 -p 4444 listening on [127.0.0.1] 4444 ... Lets check if it's ok: xxxxxx ~ # netstat -atnp | grep 4444 tcp 0 0 127.0.0.1:4444 0.0.0.0:* LISTEN 14038/nc Ok lets connect: xxxxxx ~ # nc -vv 127.0.0.1 4444 localhost [127.0.0.1] 4444 (?) open Return to the tty that have the listening process and I get this: connect to [127.0.0.1] from xxxxxx.net [176.31.xxx.xx] 50354 So that's the problem. I have a server daemon that have to listen on localhost and checks that the ip is 127.0.0.1 when the client connects but for some reason when I connect to localhost it reports the external ip... If I do the same with IPv6 it works as excepted... Detects connection as localhost (::1). Some info that can be useful: "localhost" resolves without problems to 127.0.0.1 xxxxxx ~ # ping -c1 localhost PING localhost (127.0.0.1) 56(84) bytes of data. 64 bytes from localhost (127.0.0.1): icmp_req=1 ttl=64 time=0.086 ms Nothing weird on my hosts file, I think... xxxxxx ~ # grep -v ^# /etc/hosts 127.0.0.1 localhost localhost.localdomain 176.31.xxx.xx xxxxxx.net ns1.xxxxxx.net ::1 ip6-localhost ip6-loopback feo0::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters ff02::3 ip6-allhosts And ifconfig reports all ok... eth0 Link encap:Ethernet HWaddr e0:69:95:d8:30:a1 inet addr:176.31.xxx.xx Bcast:176.31.108.255 Mask:255.255.255.0 inet6 addr: 2001:41d0:8:xxxx::/64 Scope:Global inet6 addr: 2001:41d0:8:xxxx:x:xx:xx:xx/64 Scope:Global inet6 addr: fe80::e269:95ff:fed8:30a1/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:16916 errors:0 dropped:0 overruns:0 frame:0 TX packets:16914 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:8410679 (8.0 MiB) TX bytes:10539881 (10.0 MiB) Interrupt:28 Base address:0xe000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:5570 errors:0 dropped:0 overruns:0 frame:0 TX packets:5570 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:744490 (727.0 KiB) TX bytes:744490 (727.0 KiB)

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  • WSS and CAG , _layout pages break

    - by Mike
    Alright, I've searched everywhere and I cannot find the answer, due to the rarity of our setup. WSS 3.0/IIS 6.0/WinServer 2003 We have a sharepoint site that is in good shape, almost. Its TCP and SSL port are uncommon and need to be rerouted to work properly. This is where the Citrix Access Gateway (CAG) comes in play. It will redirect any request from URL (something.something.com) to the correct SSL port on the correct server. My AAM is configured to Default something.something.com and nothing else, since the CAG will provide the port. We use FBA, and require SSL. This works perfectly for everything that is safe or that is anything that an end user can see, but if I try to add a webpart, it errors out. Whereas if I add it internally, or bypass the CAG the webpart adds fine. The same goes for most of the _layouts pages, like _layouts/new.aspx. If I add a Link List/Doc library on the something.something.com, it errors out (Page cannot be displayed) and the page won't display, but if I try it with an internal address it will work fine. I found that if I am trying to add something or doing anything administrative, the site will navigate to the pages that I need to go to fine, but when i actually ADD something the URL will change from something.something.com to something.something.com:SSLport, thus erroring out the site. The URL with the SSL port shows on the Site URL when navigating to Site Settings. However, if I bypass the CAG, using the internal address the _layouts page works like a charm and i can add anything. All the CAG does is reroute a DNS request to the provided server and port. I've tried reextending the application, no luck same thing. I've tried changing the AAM to hide the port and the CAG rejects it. I've tried to recreate a new webapp/site collection with the same rules on the CAG, same thing occurs. Correct me if I'm wrong, and please provide me with some feedback and answers. Any suggestions would be very appreciated. Is it the CAG or the Alternate Access Mappings (AAM)?

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  • LDAP installed, running, but can't connect remotely [Ubuntu 10.10]

    - by Casey Jordan
    Hi all, I installed LDAP on my ubuntu 10.10 system, using the tutorial found here: https://help.ubuntu.com/10.10/serverguide/C/openldap-server.html Everything seems to be working well, when logged into the server via ssh I can run commands like: > ldapsearch -xLLL -b "dc=easydita,dc=com" uid=john sn givenName cn dn: uid=john,ou=people,dc=easydita,dc=com sn: Doe givenName: John cn: John Doe So I think that's a good sign that things are working well. However I have had zero luck connecting to the server remotely via GUI tools or command line. I have tied JXplorer, and LDAP administration tool. Running commands like this: > ldapsearch -xLLL -W -H ldap://ice.rit.edu -d1 "dc=easydita,dc=com" ldap_url_parse_ext(ldap://ice.rit.edu) ldap_create ldap_url_parse_ext(ldap://ice.rit.edu:389/??base) Enter LDAP Password: ldap_sasl_bind ldap_send_initial_request ldap_new_connection 1 1 0 ldap_int_open_connection ldap_connect_to_host: TCP ice.rit.edu:389 ldap_new_socket: 3 ldap_prepare_socket: 3 ldap_connect_to_host: Trying 127.0.0.1:389 ldap_pvt_connect: fd: 3 tm: -1 async: 0 ldap_open_defconn: successful ldap_send_server_request ber_scanf fmt ({it) ber: ber_scanf fmt ({i) ber: ber_flush2: 34 bytes to sd 3 ldap_result ld 0xb8940170 msgid 1 wait4msg ld 0xb8940170 msgid 1 (infinite timeout) wait4msg continue ld 0xb8940170 msgid 1 all 1 ** ld 0xb8940170 Connections: * host: ice.rit.edu port: 389 (default) refcnt: 2 status: Connected last used: Thu Mar 17 19:42:29 2011 ** ld 0xb8940170 Outstanding Requests: * msgid 1, origid 1, status InProgress outstanding referrals 0, parent count 0 ld 0xb8940170 request count 1 (abandoned 0) ** ld 0xb8940170 Response Queue: Empty ld 0xb8940170 response count 0 ldap_chkResponseList ld 0xb8940170 msgid 1 all 1 ldap_chkResponseList returns ld 0xb8940170 NULL ldap_int_select read1msg: ld 0xb8940170 msgid 1 all 1 ber_get_next ber_get_next: tag 0x30 len 16 contents: read1msg: ld 0xb8940170 msgid 1 message type bind ber_scanf fmt ({eAA) ber: read1msg: ld 0xb8940170 0 new referrals read1msg: mark request completed, ld 0xb8940170 msgid 1 request done: ld 0xb8940170 msgid 1 res_errno: 49, res_error: <>, res_matched: <> ldap_free_request (origid 1, msgid 1) ldap_parse_result ber_scanf fmt ({iAA) ber: ber_scanf fmt (}) ber: ldap_msgfree ldap_err2string ldap_bind: Invalid credentials (49) I am pretty sure that I set up the admin password correctly, but the tutorial was not very specific about that. (Also could not find instructions on how to reset admin password.) Additional info: I was told that this file might hold important information so I will post it: /etc/ldap/slapd.d/cn=config/olcDatabase={0}config.ldif dn: olcDatabase={0}config objectClass: olcDatabaseConfig olcDatabase: {0}config olcAccess: {0}to * by dn.exact=cn=localroot,cn=config manage by * break olcRootDN: cn=admin,cn=config structuralObjectClass: olcDatabaseConfig entryUUID: eca09490-e524-102f-87c5-17d7a82e8985 creatorsName: cn=config createTimestamp: 20110317205733Z entryCSN: 20110317205733.193089Z#000000#000#000000 modifiersName: cn=config modifyTimestamp: 20110317205733Z Given that it seems I have this almost set up correctly is there any steps I can take to correct this? Thanks, Casey

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  • Losing internet connectivity on server after installing LogMeIn Hamachi (with server set as gateway node)

    - by Kim Jong-Un
    Our domain controller (SBS 2003) completely lost internet and network connectivity yesterday after I remotely installed LogMeIn Hamachi on it and set it to be a gateway node- in an attempt to create a VPN link between the server and a remote site. I had to go in to the office to resolve the problem as, unsurprisingly, my own remote access to the server was also lost. I was only able to restore network connectivity by deleting a virtual network adapter Hamachi created when making the server the gateway node (called "Hamachi bridge" I believe), then rebooting the server. This is a repeatable problem. Every time I try to get this to work, it just takes the server offline. Why would this bridge affect regular TCP/IP connectivity on the NIC in this way? I have tried a "hub-and-spoke" configuration between the server and our PC at a remote site (server set as hub, remote site as spoke). This caused no such problems with general internet connectivity, and file transfer worked well between the two computers. However, there was a DNS issue with the VPN between the two sites- resulting in Active Directory not being able to communicate between them (could not log on using domain user accounts at remote site if they were not already cached on that machine). I only tried a "gateway" network as LogMeIn support told me: If you can get the Active Directory to work it would only be through a "Gateway" network type with the server acting as the Gateway Node. You would configure the gateway settings on the server in the Hamachi client on that machine to push whatever IP's/DNS settings you prefer and at that point AD would be able (all things being equal) communicate to the client node when it attaches. We do not have any ActiveDirectory configuration info as that's outside the scope of our support. I hope this helps. It would be fantastic if I could get Active Directory to work over a Hamachi VPN connection, without worrying about the server going offline in this way. Does anyone have any ideas how I should proceed, or any theories as to what is going on when I try to use the "gateway" network type? I want to try to narrow down what is going on here.

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  • OpenWRT based gateway with dnsmasq and internal server with bind

    - by Peter
    I have router based on OpenWRT which has dnsmasq 2.59. Inside my local area network I have a NS server bind. This server has internal and external views for a couple of my domains. My router forwards port 53 TCP and UDP from outside IP (router WAN) to this server. For the external clients everything works fine. In order to organize the internal view, I decided to add the exception to /etc/dnsmasq.conf server=/mydomain1.com/192.168.1.1 server=/mydomain2.com/192.168.1.1 server=/mydomain3.com/192.168.1.1 (192.168.1.1 - IP address of the NS server) According to dnsmasq manstrong text: More specific domains take precendence over less specific domains, so: --server=/google.com/1.2.3.4 --server=/www.google.com/2.3.4.5 will send queries for *.google.com to 1.2.3.4, except *www.google.com, which will go to 2.3.4.5 this domain name with all the sub-domains is supposed to be forward to my NS server. Everything works (SOA, NS, MX, CNAME, TXT, SRV etc.) except for A-record: # nslookup -type=a mydomain1.com Server: 192.168.1.100 Address: 192.168.1.100#53 *** Can't find mydomain1.com: No answer 192.168.1.100 - IP address of my router (dnsmasq) However, I can get the answer for the TXT-record query: # nslookup -type=txt mydomain1.com Server: 192.168.1.100 Address: 192.168.1.100#53 mydomain1.com text = "v=spf1 include:mydomain1.com -all" When I just specify the local IP of my NS server (direct access to the server without using dnsmasq) then the results are: # nslookup -type=a mydomain1.com 192.168.1.1 Server: 192.168.1.1 Address: 192.168.1.1#53 Name: mydomain1.com Address: 192.168.1.1 There is a similar situation with the MX-record: C:\>nslookup -type=mx mydomain1.com Server: router.lan Address: 192.168.1.100 mydomain1.com MX preference = 10, mail exchanger = mail.mydomain1.com mydomain1.com nameserver = ns.mydomain1.com mail.mydomain1.com internet address = 192.168.1.1 ns.mydomain1.com internet address = 192.168.1.1 C:\>nslookup -type=a mail.mydomain1.com Server: router.lan Address: 192.168.1.100 *** No address (A) records available for mail.mydomain1.com This is a dig result: # dig +nocmd mydomain1.com any +multiline +noall +answer mydomain1.com. 86400 IN SOA ns.mydomain1.com. hostmaster.mydomain1.com. ( 121204007 ; serial 28800 ; refresh (8 hours) 7200 ; retry (2 hours) 604800 ; expire (1 week) 3600 ; minimum (1 hour) ) mydomain1.com. 86400 IN NS ns.mydomain1.com. mydomain1.com. 86400 IN A 192.168.1.1 mydomain1.com. 604800 IN MX 10 mail.mydomain1.com. mydomain1.com. 3600 IN TXT "v=spf1 include:mydomain1.com -all" When I try to ping: # ping mydomain1.com ping: cannot resolve mydomain1.com: Unknown host Is it a bug of dnsmasq 2.59? How to manage this problem?

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  • Debugging IO limitation

    - by Martin F
    I have a Fedora box with some severe IO limitations which I have no idea how to debug. The server has a Areca Technology Corp. ARC-1130 12-Port PCI-X to SATA RAID Controller with 12 7200 RPM 1.5 TB disks and a Marvell Technology Group Ltd. 88E8050 PCI-E ASF Gigabit Ethernet Controller. uname -a output: 2.6.32.11-99.fc12.x86_64 #1 SMP Mon Apr 5 19:59:38 UTC 2010 x86_64 x86_64 x86_64 GNU/Linux The server is a file server running Nginx with the stub status module enabled, so I can see the current amount of connections. The problem present itself when I have a high number of simultaneous connections in a writing state. Usually around 350, at this very moment it's at 590 and the server is almost unusable and stuck at 230mbit/s. If I run stop and hit 1 to see CPU core usages I have all 4 cores with around 99% io wait, if I run iotop the nginx workers are the only processes producing any read load, currently at around 25MB/s. I have each of the workers bound to their own core. Initially I figured it was just the disks being bugged. But I've run fscheck and smartmontools checks and found no errors. I also ran an iozone test which you can see the result of here: http://www.pastie.org/951667.txt?key=fimcvljulnuqy2dcdxa Additionally, when the amount of connections are low I have no problem getting a good speed. If I wget over the local network it easily hits 60MB/sec. Right now I just tried putting a file in /dev/shm, then I symlinked a file from the public dir to it and used wget over the local network and only got 50KB/s. Also, if I try to cp /dev/shm/test /root/test it quickly copies around 740MB and then slows down HEAVILY. Again with iotop reporting 99% iowait. I'm not really sure how to go about figuring out what the problems are. It could be a natural disk limitation but then the file from /dev/shm ought to transfer so it seems there's a network limit, but that's fine when there's not many connections. Perhaps it's a TCP stack problem but I really have no idea how to check that. Any suggestions on how to proceed with debugging would be very welcome. If additional information is required then let me know and I'll try to get it. Thanks.

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  • Intermittent Disconnection of Client Computers from Domain Server

    - by dilip nagle
    The Background: I have Windows 2008 server Enterprise Version with 25 user cal licences. It has a domain and all users and a network shared HP printer in it. The Server has two network cards and both these cards as well as all client machines are on IP addressing scheme of 192.168.1.* with subnetmask 255.255.255.0. Of the two network cards viz. 192.168.1.231 and 192.168.1.233, only 192.168.1.231 is registered with DNS. In 192.168.1.233(i.e. 2nd network card) has default getway as 192.168.1.231 and dns address as 192.168.1.231. The Server has three hard disks with capacities as 500gb, 500gb and 1TB and are partitioned as (C,D,E), (F,G) and (K) with partition K having all user data into various Shared Folders. Each of these folders(On Partition K), are mapped onto each user's computer as per the right of access given to them. The Problem: The Server was installed about 6 months ago and till date not even once, the Server has Hung or has given any problem. All the Clients computers are able to run the web based software from their computers via ip address, e.g. http://192.168.1.231/webERP/default.aspx. However, occassionally, when any client computer tries to browse network mappings, it hangs. Again, there is no fixed pattern. This may happen after running smoothly for say 3 days. On each Client's machine, the network settings are as follows: IP Address: 192.168.1.* where * is 1,2,3 .... Sunnetmask: 255.255.255.0 defauly getway: 192.168.1.231 Which is a server card and DNS address. preferred DNS Server: 192.168.1.231 In Advanced Tab under Wins: LMHostLookup is Unticked and default is radio buttoned. Ideally, I would have loved to have Disabled NETBIOS over TCP/IP but some network printers do not get accessed if this option is enabled(ie. Radio Buttoned). Bacause Disabling Netbios will drastically reduce traffic of NETBIOS broadcasting to all the computers on the net to do naming resolution. On Server, I have WINs Running which I have Scavanged Records, verified Database Integrity etc, removed Tombstoned Records etc. The Critical Errors shown only once a day when the server is statred are 4224(WINS) and 12923 - Server Licencing failed to Update DNS Record. I fail to understand as why do client machines HANG when they try to browse mapped network shared folders on K Drive. Kindly Advice

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  • OpenLDAP with StartTLS broken on Debian Lenny

    - by mr.zog
    I'm trying to get OpenLDAP on Lenny to work with StartTLS. I have a Fedora 13 machine which I'm using as a client for testing. So far the Fedora client is ignoring the 'host' directive in /etc/ldap.conf when I try to connect using ldapsearch. The client wants to connect to 127.0.0.1:389 even if I specify -H ldaps://server.name on when using ldapsearch. /etc/ldap.conf on the client machine is in mode 444. But even when I try connecting locally from an ssh session, I see errors like this: ldap_sasl_interactive_bind_s: Can't contact LDAP server (-1) Someone hit me with a cluebat, plz. Update: you must use ~/.ldaprc for settings such as 'host'. Also, I just used nmap against the ldap server and it showed 636 and 389 in an open state. Here's what prints to screen when I try to connect with, ldapsearch -ZZ –x '(objectclass=*)'+ -d -1 ldap_create ldap_extended_operation_s ldap_extended_operation ldap_send_initial_request ldap_new_connection 1 1 0 ldap_int_open_connection ldap_connect_to_host: TCP 192.168.10.41:636 ldap_new_socket: 3 ldap_prepare_socket: 3 ldap_connect_to_host: Trying 192.168.10.41:636 ldap_pvt_connect: fd: 3 tm: -1 async: 0 ldap_open_defconn: successful ldap_send_server_request ber_scanf fmt ({it) ber: ber_dump: buf=0x9bdbdb8 ptr=0x9bdbdb8 end=0x9bdbdd7 len=31 0000: 30 1d 02 01 01 77 18 80 16 31 2e 33 2e 36 2e 31 0....w...1.3.6.1 0010: 2e 34 2e 31 2e 31 34 36 36 2e 32 30 30 33 37 .4.1.1466.20037 ber_scanf fmt ({) ber: ber_dump: buf=0x9bdbdb8 ptr=0x9bdbdbd end=0x9bdbdd7 len=26 0000: 77 18 80 16 31 2e 33 2e 36 2e 31 2e 34 2e 31 2e w...1.3.6.1.4.1. 0010: 31 34 36 36 2e 32 30 30 33 37 1466.20037 ber_flush2: 31 bytes to sd 3 0000: 30 1d 02 01 01 77 18 80 16 31 2e 33 2e 36 2e 31 0....w...1.3.6.1 0010: 2e 34 2e 31 2e 31 34 36 36 2e 32 30 30 33 37 .4.1.1466.20037 ldap_write: want=31, written=31 0000: 30 1d 02 01 01 77 18 80 16 31 2e 33 2e 36 2e 31 0....w...1.3.6.1 0010: 2e 34 2e 31 2e 31 34 36 36 2e 32 30 30 33 37 .4.1.1466.20037 ldap_result ld 0x9bd3050 msgid 1 wait4msg ld 0x9bd3050 msgid 1 (infinite timeout) wait4msg continue ld 0x9bd3050 msgid 1 all 1 ** ld 0x9bd3050 Connections: * host: 192.168.10.41 port: 636 (default) refcnt: 2 status: Connected last used: Sun Jun 6 12:54:05 2010 ** ld 0x9bd3050 Outstanding Requests: * msgid 1, origid 1, status InProgress outstanding referrals 0, parent count 0 ld 0x9bd3050 request count 1 (abandoned 0) ** ld 0x9bd3050 Response Queue: Empty ld 0x9bd3050 response count 0 ldap_chkResponseList ld 0x9bd3050 msgid 1 all 1 ldap_chkResponseList returns ld 0x9bd3050 NULL ldap_int_select read1msg: ld 0x9bd3050 msgid 1 all 1 ber_get_next ldap_read: want=8, got=0 ber_get_next failed. ldap_err2string ldap_start_tls: Can't contact LDAP server (-1)

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  • Why do these ipfw delayed pipes have no effect?

    - by troutwine
    I'm on OSX 10.7.5 and am attempting to add some latency to the connection to my personal domain with ipfw, using this article as a guide. Normal latency: > ping -c5 troutwine.us PING troutwine.us (198.101.227.131): 56 data bytes 64 bytes from 198.101.227.131: icmp_seq=0 ttl=56 time=92.714 ms 64 bytes from 198.101.227.131: icmp_seq=1 ttl=56 time=91.436 ms 64 bytes from 198.101.227.131: icmp_seq=2 ttl=56 time=91.218 ms 64 bytes from 198.101.227.131: icmp_seq=3 ttl=56 time=91.451 ms 64 bytes from 198.101.227.131: icmp_seq=4 ttl=56 time=91.243 ms --- troutwine.us ping statistics --- 5 packets transmitted, 5 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 91.218/91.612/92.714/0.559 ms Enabling ipfw: > sudo sysctl -w net.inet.ip.fw.enable=0 net.inet.ip.fw.enable: 1 -> 0 > sudo sysctl -w net.inet.ip.fw.enable=1 net.inet.ip.fw.enable: 0 -> 1 The configuration of the pipe: > sudo ipfw add pipe 1 ip from any to 198.101.227.131 00200 pipe 1 ip from any to any dst-ip 198.101.227.131 > sudo ipfw add pipe 2 ip from 198.101.227.131 to any 00500 pipe 2 ip from 198.101.227.131 to any > sudo ipfw pipe 1 config delay 250ms bw 1Mbit/s plr 0.1 > sudo ipfw pipe 2 config delay 250ms bw 1Mbit/s plr 0.1 The pipes are in place and configured: > sudo ipfw -a list 00100 166 14178 fwd 127.0.0.1,20559 tcp from any to me dst-port 80 in 00200 0 0 pipe 1 ip from any to 198.101.227.131 00300 0 0 pipe 2 ip from 198.101.227.131 to any 65535 37452525 32060610029 allow ip from any to any > sudo ipfw pipe list 00001: 1.000 Mbit/s 250 ms 50 sl.plr 0.100000 0 queues (1 buckets) droptail mask: 0x00 0x00000000/0x0000 -> 0x00000000/0x0000 00002: 1.000 Mbit/s 250 ms 50 sl.plr 0.100000 0 queues (1 buckets) droptail mask: 0x00 0x00000000/0x0000 -> 0x00000000/0x0000 Yet, this has had no effect: > ping -c5 troutwine.us PING troutwine.us (198.101.227.131): 56 data bytes 64 bytes from 198.101.227.131: icmp_seq=0 ttl=56 time=100.920 ms 64 bytes from 198.101.227.131: icmp_seq=1 ttl=56 time=91.648 ms 64 bytes from 198.101.227.131: icmp_seq=2 ttl=56 time=91.777 ms 64 bytes from 198.101.227.131: icmp_seq=3 ttl=56 time=91.466 ms 64 bytes from 198.101.227.131: icmp_seq=4 ttl=56 time=93.209 ms --- troutwine.us ping statistics --- 5 packets transmitted, 5 packets received, 0.0% packet loss round-trip min/avg/max/stddev = 91.466/93.804/100.920/3.612 ms What gives? I understand that ipfw is depreciated, but the manpage does not mention it being disabled. Also, I am not using Network Link Controller as I want to affect a single host.

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  • SQL 2008 R2 Named Instance Client Connectivity Issues?

    - by Jerry Dodge
    We're upgrading our software from using SQL 2000 to 2008 R2. Our customers will be installing an update which uninstalls 2000 and installs 2008 R2 under the same instance. So if no instance existed, then no instance name will be set (default). However, the problem starts with the customers which have a named SQL instance. Starting in 2008 R2 (not sure of ones before), for some reason, a client connecting to the server by its instance name is unsuccessful. I'm testing from the Management Studio - if I can't connect this, then nothing can connect. I browse network servers, and find the specific server\instance in the list. But, upon trying to connect to an instance name like MyServer\INST, I get: A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) (Microsoft SQL Server, Error: -1) I do in fact have TCP/IP and Named Pipes protocols enabled, this is the first thing I did. When I connect to the server using a comma (,) and port number like MyServer, 49195, it works just fine. So it appears that client computers are just unable to identify the instance names. This has happened on all our installations of SQL 2008 R2 and from all client computers, including Win 7, XP, Vista, Server 2008, and Server 2003. We never experienced such issues on earlier versions of SQL. The problem even persists if the firewalls and antiviruses are all disabled. Now, this is a large update which we will be distributing soon to all our customers, and we want to minimize the interaction they need with us to get this installed. We absolutely hate the idea of using a port number, because it will always be different, and we would have to modify each client to point to this server/port. Some of our customers may have hundreds of client computers. How do I make client connections to a named SQL instance work again? After all, this is the whole purpose of named instances, and if a client can't connect to this instance by its name, then what is it even named for? EDIT It was mentioned to make sure SQL Browser is running, so I checked, and it is running. The server is also able to connect to its self (locally) - just external connections are refused. UPDATE After more careful checking, I learned the firewall wasn't completely disabled when testing, and upon disabling it completely, this works. So it appears that SQL Browser is being blocked by the firewall from external clients from accessing.

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  • Ubuntu with KVM guest VM and broken bridges

    - by MadPsy
    I have an Ubuntu box with a KVM guest VM running. They use bridging so the guest VM attaches to the physical network of its host. The guest VM has 2 NICs in 2 different bridges. First NIC of the VM is tap5 and is in bridge br0 br0 8000.46720f5c572e no eth0.500 tap5 Second NIC of the VM is tap2 and is in bridge br100 br100 8000.76ad2fc96661 no eth0.100 eth0.101 eth0.103 eth0.104 eth0.105 tap2 On the host, br0 has an IP and br100 does not 21: br0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP link/ether 46:72:0f:5c:57:2e brd ff:ff:ff:ff:ff:ff inet 192.168.100.4/24 brd 192.168.10.255 scope global br0 inet6 fe80::d6ae:52ff:febe:777/64 scope link valid_lft forever preferred_lft forever On the guest, its eth0 and eth1 interfaces both have IP addresses 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:3e:61:fb:7a:da brd ff:ff:ff:ff:ff:ff inet 192.168.100.6/24 brd 192.168.100.255 scope global eth0 inet6 fe80::23e:61ff:fefb:7ada/64 scope link valid_lft forever preferred_lft forever 3: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000 link/ether 00:3e:61:fb:7a:ea brd ff:ff:ff:ff:ff:ff inet 172.16.50.129/25 brd 172.16.50.255 scope global eth1 inet6 fe80::23e:61ff:fefb:7aea/64 scope link valid_lft forever preferred_lft forever On the guest VM, a tcpdump of its eth1 interface (tap2) shows traffic from its eth0 interface (tap5), as if the 2 bridges are themselves bridged. This means any interface on br100 is now bridged across to br0 - which is completely broken. root@chillispot:~# tcpdump -c 1 -n -v -i eth1 net 192.168.100.0/24 tcpdump: listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes 16:31:24.175583 IP (tos 0x0, ttl 64, id 48054, offset 0, flags [DF], proto TCP (6), length 148) 192.168.100.6.22 > 192.168.100.4.59505: Flags [P.], cksum 0x6c2b (correct), seq 1056321648:1056321744, ack 398642983, win 1700, options [nop,nop,TS val 197473436 ecr 200655363], length 96 What could be bridging the 2 bridges, except the guest VM (which is a stock Ubuntu install)? I am at a complete loss! Thanks.

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  • windows server 2008 r2 remote desktop issue with roaming clients

    - by Patrick D'Haese
    I have the following situation : a Dell windows server 2008 R2 computer, with remote desktop services installed. I have installed a java application making use of a PostgreSql database, and made this application available for clients using RDP. Clients are standard Win XP pc's and Psion Neo handheld devices running Windows CE 5 Pro. The application works fine for clients on standard XP pc's connected directly via cat 5E Ethernet cable to a Dell Powerconnect 2816 switch. The Psion Neo clients connect wireless to the network via Motorola AP6532 access points. These access points are connected via a POE adapter to the same switch as the XP pc's. The Psion devices can connect without any problem and very quickly to the server and to the application using RDP. So far, so good. When the Psion devices move around in the warehouse, and they roam from one access point to the other, the RDP session on the client freezes for approx 1 minute, and then it automatically resumes the session. This freezing is very annoying for the users. Can anyone help in solving this issue? Update (August 9) : After re-installing the access points we have a working situation, but only when connecting to the RDP host : * via a Win Xp SP3 laptop * via a Symbol MC9190 Win CE 6 mobile device When roaming we notice a small hick-up less then 1 second, what is very acceptable. With the Psion NEO it's still not working, when roaming the screen freezes from 2 to 30 seconds. The RDP client on the win xp sp3 laptop and the symbol mc9190 is version 6.0. The RDP client on the neo is version 5.2. I have changed the security layer on the RDP host to RDP security layer (based on forums on the internet), because older RDP clients seem to have issues with the RDP 7.1 protocol on the Win server 2088 R2. Psion adviced us to do some network logging activity on the different devices. We made this logging via wireshark, and based on this the conclusion of Psion is that the server fails in handling tcp-requests. Can anyone give me a second opinion by analysing the wireshark loggings. Thanks in advance. Regards Patrick

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  • load-causing processes disappearing from "top" ps -o pcpu shows bogus numbers

    - by Alec Matusis
    I administer a large number of servers, and I have this problem only with Ubuntu 10.04 LTS: I run a server under normal load (say load average 3.0 on an 8-core server). The "top" command shows processes taking certain % of CPU that cause this load average: say PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 11008 mysql 20 0 25.9g 22g 5496 S 67 76.0 643539:38 mysqld ps -o pcpu,pid -p11008 %CPU PID 53.1 11008 , everything is consistent. The all of the sudden, the process causing the load average disappears from "top", but the process continues to run normally (albeit with a slight performance decrease), and the system load average becomes somewhat higher. The output of ps -o pcpu becomes bogus: # ps -o pcpu,pid -p11008 %CPU PID 317910278 1587 This happened to at least 5 different severs (different brand new IBM System X hardware), each running different software: one httpd 2.2, one mysqld 5.1, and one Twisted Python TCP servers. Each time the kernel was between 2.6.32-32-server and 2.6.32-40-server. I updated some machines to 2.6.32-41-server, and it has not happened on those yet, but the bug is rare (once every 60 days or so). This is from an affected machine: top - 10:39:06 up 73 days, 17:57, 3 users, load average: 6.62, 5.60, 5.34 Tasks: 207 total, 2 running, 205 sleeping, 0 stopped, 0 zombie Cpu(s): 11.4%us, 18.0%sy, 0.0%ni, 66.3%id, 4.3%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 74341464k total, 71985004k used, 2356460k free, 236456k buffers Swap: 3906552k total, 328k used, 3906224k free, 24838212k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 805 root 20 0 0 0 0 S 3 0.0 1493:09 fct0-worker 982 root 20 0 0 0 0 S 1 0.0 111:35.05 fioa-data-groom 914 root 20 0 0 0 0 S 0 0.0 884:42.71 fct1-worker 1068 root 20 0 19364 1496 1060 R 0 0.0 0:00.02 top Nothing causing high load is showing on top, but I have two highly loaded mysqld instances on it, that suddenly show crazy %CPU: #ps -o pcpu,pid,cmd -p1587 %CPU PID CMD 317713124 1587 /nail/encap/mysql-5.1.60/libexec/mysqld and #ps -o pcpu,pid,cmd -p1624 %CPU PID CMD 2802 1624 /nail/encap/mysql-5.1.60/libexec/mysqld Here are the numbers from # cat /proc/1587/stat 1587 (mysqld) S 1212 1088 1088 0 -1 4202752 14307313 0 162 0 85773299069 4611685932654088833 0 0 20 0 52 0 3549 27255418880 5483524 18446744073709551615 4194304 11111617 140733749236976 140733749235984 8858659 0 552967 4102 26345 18446744073709551615 0 0 17 5 0 0 0 0 0 the 14th and 15th numbers according to man proc are supposed to be utime %lu Amount of time that this process has been scheduled in user mode, measured in clock ticks (divide by sysconf(_SC_CLK_TCK). This includes guest time, guest_time (time spent running a virtual CPU, see below), so that applications that are not aware of the guest time field do not lose that time from their calculations. stime %lu Amount of time that this process has been scheduled in kernel mode, measured in clock ticks (divide by sysconf(_SC_CLK_TCK). On a normal server, these numbers are advancing, every time I check the /proc/PID/stat. On a buggy server, these numbers are stuck at a ridiculously high value like 4611685932654088833, and it's not changing. Has anyone encountered this bug?

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  • "Error 1067: The process terminated unexpectedly" when trying to install MySQL on Win7 x64.

    - by Gravitas
    Hi, I've run into a brick wall trying to install MySQL v5.5 on my machine. My PC is Windows 7 x64, Enterprise edition. MySQL installs fine, but when I run the "MySQL Instance Configuration Wizard", it pauses forever on the step "Start Service" (I can let it run for 30 minutes with no response). If I go into services, I see that the "MySQL" service hasn't started, and if I try to start it, it says "Windows could not start MySQL Service on Local Computer. Error 1067: The process terminated unexpectedly." I've tried the following: Turning off firewall. Uninstalling all antivirus software. Installing / reinstalling 32-bit version of MySQL. Installing / reinstalling 64-bit version of MySQL. Uninstalling, deleting the contents of "C:\program files\MySQL" and "C:\program files (x86)\MySQL", reinstalling. Checking to see that there is no rogue services named MySQL???? (from a previous install). Checking that port 3306 is not used by an alternate program. Changing the default port that MySQL uses. Checking for "my.ini" and "my.ini.cnf" in "C:\windows" (nothing there but that can cause a problem). Running both MySQL installer, and configuration wizard, in "Adminstrator mode". Turning off UAC. Installing with defaults, not changing anything. Rebooting my machine (about 6 reboots so far). Opening up port 3306 in the firewall (both TCP and UDP, inbound and outbound). Swearing at the klutz of a programmer who designed MySQL so you can't even install it (as if that would help!) My machine is working 100% in every other way. InfiniDB (a MySQL compatible database) installs 100%, as does Visual Studio 2010, Microsoft SQL Server, etc, etc. Your advice on how to work around this? p.s. Here is the screen it got stuck on for 15 minutes until I killed the process: Update 2010-12-20 Tried MySQL v5.1, it didn't work either. Its amazing - if you type "mysqld /?", or "mysqld -help", it doesn't give you any help. And, if you try to restart the service manually, it doesn't display any error messages. Could it be any more unhelpful? Update 2010-12-21 Installed MySQL 6.0 alpha, and it worked. However, I'd rather not use an alpha release, given that the "stable" release is anything but :( Update 2010-12-21 Found http://dev.mysql.com/doc/refman/5.1/en/windows-troubleshooting.html, dealing with troubleshooting under Windows. Discovered that you can generate an error log if the service doesn't start - see here: http://dev.mysql.com/doc/refman/5.1/en/error-log.html

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  • Pxe net install Centos with Static IP

    - by Stu2000
    I seem to be unable to perform a kickstart installation of centos5.8 with a netinstall. It correctly gets into the text installer, but keeps sending out a request for the dhcp server and failing. I have tried to manually set the IP everywhere. Here is my pxelinux.cfg file DEFAULT menu PROMPT 0 MENU TITLE Ubuntu MAAS TIMEOUT 200 TOTALTIMEOUT 6000 ONTIMEOUT local LABEL centos5.8-net kernel /images/centos5.8-net/vmlinuz MENU LABEL centos5.8-net append initrd=/images/centos5.8-net/initrd.img ip=192.168.1.163 netmask=255.255.255.0 hostname=client101 gateway=192.168.1.1 ksdevice=eth0 dns=8.8.8.8 ks=http://192.168.1.125/cblr/svc/op/ks/profile/centos5.8-net MENU end and here is my kickstart file: # Kickstart file for a very basic Centos 5.8 system # Assigns the server ip: 192.211.48.163 # DNS 8.8.8.8, 8.8.4.4 # London TZ install url --url http://mirror.centos.org/centos-5/5.8/os/i386 lang en_US.UTF-8 keyboard us network --device=eth0 --bootproto=static --ip=192.168.1.163 --netmask=255.255.255.0 --gateway=192.168.1.1 --nameserver=8.8.8.8,8.8.4.4 --hostname=client1-server --onboot=on rootpw --iscrypted $1$Snrd2bB6$CuD/07AX2r/lHgVTPZyAz/ firewall --enabled --port=22:tcp authconfig --enableshadow --enablemd5 selinux --enforcing timezone --utc Europe/London bootloader --location=mbr --driveorder=xvda --append="console=xvc0" # The following is the partition information you requested # Note that any partitions you deleted are not expressed # here so unless you clear all partitions first, this is # not guaranteed to work part /boot --fstype ext3 --size=100 --ondisk=xvda part pv.2 --size=0 --grow --ondisk=xvda volgroup VolGroup00 --pesize=32768 pv.2 logvol swap --fstype swap --name=LogVol01 --vgname=VolGroup00 --size=528 --grow --maxsize=1056 logvol / --fstype ext3 --name=LogVol00 --vgname=VolGroup00 --size=1024 --grow %packages @base @core @dialup @editors @text-internet keyutils iscsi-initiator-utils trousers bridge-utils fipscheck device-mapper-multipath sgpio emacs Here is my dhcp file: ddns-update-style interim; allow booting; allow bootp; ignore client-updates; set vendorclass = option vendor-class-identifier; subnet 192.168.1.0 netmask 255.255.255.0 { host tower { hardware ethernet 50:E5:49:18:D5:C6; fixed-address 192.168.1.163; option routers 192.168.1.1; option domain-name-servers 8.8.8.8,8.8.4.4; option subnet-mask 255.255.255.0; filename "/pxelinux.0"; default-lease-time 21600; max-lease-time 43200; next-server 192.168.1.125; } } Is it impossible to prevent it asking for a dynamic ip before trying to install from the net? Perhaps there is an error in of my files? My dhcp server is set to ignore client-updates, and is set to only works with one mac address whilst testing.

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  • Transient network dropout for Xen DomU's

    - by Stephen C
    We've got a CentOS server running a cluster of virtuals. Occasionally the cluster's internal network drops out for a minute or so ... and then comes back. The problem is somehow related to the actual network traffic, but it is not a simple load issue. (The system is generally lightly loaded, and the problem occurs irrespective of actual load.) The setup: CentOS 5.6 on Dom0, various CentOS on the DomU's Hardware - a Dell R710 with a BroadCom NextXpress 2 NIC (sigh) using the latest drivers for the NIC from BroadCom Xen configured to use network-bridge and vif-bridge Some iptable tweaks to route an unrelated port to one of the virtuals. The system has one externally visible IP address, and Dom0 runs an Apache httpd configured with a number of virtual hosts each of which reverse proxies to web servers running on the virtuals. (The virtuals have to be NAT'ed, primarily because we don't have enough allocated public IP addresses.) The symptoms: Works fine most of the time. When someone tries to UPLOAD a large file to one virtuals, the internal network drops out ... for all virtuals: The Dom0 httpd sees a network timeout talking to the backend server on the virtual and reports a 502. A previously established ssh connection from Dom0 to any of the DomU's freezes. Our monitoring shows ping failures for traffic between virtuals. The Xen consoles to the DomU's do not freeze. No log messages in any log files that I can see, on either Dom0 or the DomU's ... apart from the Dom0 httpd logs. After a minute or so, the problem clears by itself. This is 100% reproducible. What we've tried: Downloading, building and installing the latest BNX2 driver on Dom0 Turning off MSI on the NIC - adding "options bnx2 disable_msi=1" to /etc/modprobe.conf Turning off tcp segmentation offload - "ethtool -K eth0 tso off". Sacrificing a black rooster at midnight. I've exhausted all my options apart from switching to KVM ... or slaughtering more roosters. Any suggestions?

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  • isa 2004 - banned site rule cause slow internet

    - by Holian
    Hi Gods, We have windows server 2003 with isa 2004. Our clients uses internet with proxy. We have two isa rule: order name action protocolls from/listener to condition 1. trafic ALLOW all outbound all networks all networks all users 2. FTP ALLOW FTP Server EXTERNAL/INTERNAL/Local host 10.1.1.1 So we have to "bann" a few webpage (like facebook, youtube...etc...), so we make a new rule 0. banned DENY HTTP internal denied pages all users In the denied pages we have the *.facebook.com domain set. After we enable this rule, the entire internet slows down. The banning rule works well, redirect to an internal site, but the other sites.... If i open a page..it normally takes 3-10 sec to load, but after this rule this time is: 2-4 minutes. In the monitor / logging menu we got a few FAILED CONNECTION ATTEMPT like: Log type: Web Proxy (Forward) Status: 304 Not Modified Rule: All local traffic Source: Internal ( 10.1.1.1:0 ) Destination: External ( 172.24.28.22:3128 ) Request: GET http://www.konyvelozona.hu/wp-content/uploads/nyugdijas-holgy-2.jpg Filter information: Req ID: 17270b72 Protocol: http User: anonymous Additional information Client agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.3072... Object source: Verified Cache Processing time: 9047 Cache info: 0x18801002 MIME type: - In the event log we got a few log: Description: The Web Proxy filter failed to bind its socket to 10.1.1.1 port 80. This may have been caused by another service that is already using the same port or by a network adapter that is not functional. To resolve this issue, restart the Microsoft Firewall service. The error code specified in the data area of the event properties indicates the cause of the failure. The failure is due to error: 0x8007271d The Web Proxy filter failed to bind its socket to 127.0.0.1 port 80. This may have been caused by another service that is already using the same port or by a network adapter that is not functional. To resolve this issue, restart the Microsoft Firewall service. The error code specified in the data area of the event properties indicates the cause of the failure. The failure is due to error: 0x8007271d If i tpye: netstat -o -n -a | findstr 0.0:80 then i got, tcp 0.0.0.0:80 0.0.0.0:0 LISTEN 4 udp 0.0.0.0:8031 *.* 2780 udp 0.0.0.0:8082 *.* 2780 Some month ago we installed XMAP, but now we only use mysql. Apache service stopped. In the Xamp port check menu i see: Service POrt Status Apache (http) 80 Process: System Maybee this is the problem? I dont know what should i do now... Thank you folks.

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  • Unable to locate Windows Server Error log files

    - by Sam007
    I am getting an error in my application on 500 Internal Server Error. The firebug gives me, NetworkError: 500 Internal Server Error - http://webgis.arizona.edu/ArcGIS/rest/services/webGIS/Shock_Models/GPServer/Income_Log/jobs/jc09c501156564f71abc5d98393581267/results/final_shp?dpi=96&transparent=true&format=png8&imageSR=102100&f=image&bbox=%7B%22xmin%22%3A-14519891.438356264%2C%22ymin%22%3A637618.0139790997%2C%22xmax%22%3A-6692739.741956295%2C%22ymax%22%3A6507981.786279075%2C%22spatialReference%22%3A%7B%22wkid%22%3A102100%7D%7D&bboxSR=102100&size=800%2C600 And when I goto that particular link, I get this error, Server Error - Object reference not set to an instance of an object. Any idea how I can correct it? UPDATE I was told to use fiddler and see the error details that is occurring over the network and this is the output that I got, SESSION STATE: Done. Response Entity Size: 849 bytes. == FLAGS ================== BitFlags: [ClientPipeReused, ServerPipeReused] 0x18 X-CLIENTPORT: 2010 X-RESPONSEBODYTRANSFERLENGTH: 849 X-EGRESSPORT: 2023 X-HOSTIP: 128.196.53.161 X-PROCESSINFO: firefox:2248 X-CLIENTIP: 127.0.0.1 X-SERVERSOCKET: REUSE ServerPipe#2 == TIMING INFO ============ ClientConnected: 15:53:51.383 ClientBeginRequest: 15:53:51.494 GotRequestHeaders: 15:53:51.494 ClientDoneRequest: 15:53:51.494 Determine Gateway: 0ms DNS Lookup: 0ms TCP/IP Connect: 0ms HTTPS Handshake: 0ms ServerConnected: 15:52:45.077 FiddlerBeginRequest: 15:53:51.495 ServerGotRequest: 15:53:51.495 ServerBeginResponse: 15:53:51.679 GotResponseHeaders: 15:53:51.679 ServerDoneResponse: 15:53:51.679 ClientBeginResponse: 15:53:51.679 ClientDoneResponse: 15:53:51.679 Overall Elapsed: 00:00:00.1850106 The response was buffered before delivery to the client. == WININET CACHE INFO ============ This URL is not present in the WinINET cache. [Code: 2] * Note: Data above shows WinINET's current cache state, not the state at the time of the request. * Note: Data above shows WinINET's Medium Integrity (non-Protected Mode) cache only. But I am still confused as to what the error is? This is the application. I am not sure if the error is due to the ArcGIS-Server or the Windows Server 2008. I am new on working with the Windows Server and wanted to know where can I look for the error lof files? This is the link which gives the details and the log info of the job executed. This is the output.

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  • SSH Socks Proxy wiith iptables REDIRECT

    - by Radium
    I have googled and haven`t found the answer on my question. Help me please. There are two servers: serverA with public IP 12.0.0.10 and an private IP 10.0.0.5 serverB with public IP 20.0.0.11 I have setup SOCKS proxy on serverB to serverA: ssh -D20.0.0.11:2222 [email protected] So when on my local machine in a browser i specify SOCKS proxy 20.0.0.11:2222 (serverB:2222) as external IP while browsing i get 12.0.0.10 (serverA IP). That is ok. As well if i go onto http://10.0.0.5 (serverA private IP) it is also reachable. That is what i need. I want to make servers A private IP to be available through servers B public IP on certain ports but without specifying SOCKS in my browser. I could use ssh port forward but the problem is - i need to forward many ports and do not know which exactly - i know only the range. So when i connect to 20.0.0.11 to any port , for example, from 3000:4000 range, i want that traffic to be redirected to 10.0.0.5 on the same port. That is why i`ve decided maybe SOCKS proxy via SSH and iptables REDIRECT could help me. Client - serverBPublicIP (any port from range 3000:4000) - serverAPublicIP - serverAPrivateIP (the port was requested on serverBPublicIP) On serverB i do: ssh -D20.0.0.11:2222 [email protected] iptables -t nat -A PREROUTING -d 20.0.0.11 -p tcp --dport 3000:4000 -j REDIRECT --to-port 2222 But that does not work - when i telnet on 20.0.0.11:3001 for example i do not see any proxied traffic on the serverA. What should i do else? I have tried tcpsocks like this (in example i am telneting to 20.0.0.11:3001) Client -> 20.0.0.11:3001 -> iptables REDIRECT from 3001 --to-port 1111 -> tcpsocks from 1111 to 2222 -> SOCKS proxy from serverB to serverA on port 2222 -> serverA But i do not know what to do with the traffic on serverA. How to route it to its private IP. Help me please. I know, VPN removes all the hell i am trying to create, but i have no ability to use tun/tap device. It is disabled.

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  • NGiNX performance degrades over time.

    - by Rylea Stark
    So here's the situation, I run a small cluster, Dedicated box for MySQL, and a dedicated PHP-FPM/NGINX box, Nginx talks to php-fpm via socket, As far as i can tell the problem does not lie in php-fpm, it lies somewhere in my configuration. What happens, is the site loads instant for a few moments after starting and slowly starts to degrade to load times of greater than 2 seconds, eventually taking 12 seconds to complete a load, PHP is configured to close a child after 175 requests, and spawn 20 at start and have a max of 60. Not really sure where the bottle neck is, most of my code is optimized and works flawlessly, but these issues with nginx will most likely force me to switch back over to Apache, And I really dont want to do that, NGINX.conf configuration below. user www-data; worker_processes 4; worker_cpu_affinity 0001 0010 0100 1000; error_log /var/log/nginx/error.log; pid /var/run/nginx.pid; events { worker_connections 512; multi_accept on; use epoll; } http { include /etc/nginx/mime.types; access_log /var/log/nginx/access.log; resolver_timeout 5s; satisfy all; ## Size Limits limit_zone brainbug $binary_remote_addr 5m; client_body_buffer_size 8k; client_header_buffer_size 75M; client_max_body_size 1k; large_client_header_buffers 2 1k; ## Timeouts client_body_timeout 60; client_header_timeout 60; keepalive_timeout 60; send_timeout 60; ## General Options ignore_invalid_headers on; recursive_error_pages on; sendfile on; server_name_in_redirect off; server_tokens off; ## TCP options tcp_nodelay on; #tcp_nopush on; output_buffers 128 512k; gzip on; gzip_http_version 1.0; gzip_comp_level 7; gzip_proxied any; gzip_min_length 0; gzip_buffers 32 32k; gzip_types text/plain text/html text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript image/jpeg image/png image/gif; ## Disable GZIP for MSIE 1-6 gzip_disable "MSIE [1-6].(?!.*SV1)"; ## Set a vary header so downstream proxies don't send cached gzipped content to IE6 gzip_vary on; include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; }

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  • Is this distributed database server idea feasible?

    - by David
    I often use SQLite for creating simple programs in companies. The database is placed on a file server. This works fine as long as there are not more than about 50 users working towards the database concurrently (though depending on whether it is reads or writes). Once there are more than this, they will notice a slowdown if there are a lot of concurrent writing on the server as lots of time is spent on locks, and there is nothing like a cache as there is no database server. The advantage of not needing a database server is that the time to set up something like a company Wiki or similar can be reduced from several months to just days. It often takes several months because some IT-department needs to order the server and it needs to conform with the company policies and security rules and it needs to be placed on the outsourced server hosting facility, which screws up and places it in the wrong localtion etc. etc. Therefore, I thought of an idea to create a distributed database server. The process would be as follows: A user on a company computer edits something on a Wiki page (which uses this database as its backend), to do this he reads a file on the local harddisk stating the ip-address of the last desktop computer to be a database server. He then tries to contact this computer directly via TCP/IP. If it does not answer, then he will read a file on the file server stating the ip-address of the last desktop computer to be a database server. If this server does not answer either, his own desktop computer will become the database server and register its ip-address in the same file. The SQL update statement can then be executed, and other desktop computers can connect to his directly. The point with this architecture is that, the higher load, the better it will function, as each desktop computer will always know the ip-address of the database server. Also, using this setup, I believe that a database placed on a fileserver could serve hundreds of desktop computers instead of the current 50 or so. I also do not believe that the load on the single desktop computer, which has become database server will ever be noticable, as there will be no hard disk operations on this desktop, only on the file server. Is this idea feasible? Does it already exist? What kind of database could support such an architecture?

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  • How to circumvent ISP Limiting "Unknown" traffic - (SSH)Proxy, VPN

    - by connery
    I am having issues with using a proxy/VPN, with my current ISP (Comenersol, Spain). From my point of view they limit traffic by protocol or by traffic they "know" and "dont know". I'll explain my findings so far below. Internet connection in Spain: ~400-420KByte/sec (speedtest.net) OpenVPN Server in Sweden(pfsense): 100/100Mbit. LZO Compression. TCP. Tun. Aes128 Squid Proxy server in Sweden (pfsense): 100/100 (same box as the vpn server). Plain, no encryption. Runs in stealth mode to hide the use of proxy. NOT running OpenVPN or Squid Proxy, this is my findings: When I download a file from my pfsense box in Sweden, I get maximum speed When I run speedtest.net and choose any european server (including Swedish), I get max speed When I download a torrent (with non default port above 10K), I get limited to ~100KByte/sec. Encryption is turned off If I download something through https, I get max speed Running either Squid Proxy or VPN, this is my findings When I download a file from my pfsense box in Sweden, I get ~100KByte/sec When I run speedtest.net and choose any european server (including Swedish and Spanish), I get ~100Kbyte/sec When I download a torrent, I get same limitation ~100KByte/sec When I download something through https, I get ~100KByte/sec I verify the speeds above with speedtest.net measure, firefox measure in addition to having bmon running in terminal in the background. This way I am certain that the speeds I get presented, are in fact correct. If I connect through a different ISP with VPN or Squid Proxy, I get better speeds (400KByte/sec ++) In short: Whenever I tunnel my traffic through Sweden, my SPanish ISP throttles the traffic. I thought tunneling it through Squid would solve the issue, since I then would no longer hide my traffic through encryption. This does not seem to be the case. Wget and fetch gives same result. I did not try 'nc', but I assume this would give the same result. Does anyone know how to circumvent this issue? I would very much like to be able to get full speed with Swedish ip, as this would make me able to stream TV at higher quality than today. 100KByte/sec just does not cut it quality wise. Thanks for reading. Looking forward for your help.

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  • Joining Windows 7 Professional to a Windows Server 2003 R2 x64 domain fails.

    - by Vinko Vrsalovic
    I have a windows 7 professional (spanish) laptop trying to join a Windows Server 2003 (english) domain. It detect correctly the SRV record, finding the proper domain controller, but then the join fails with the error message (snippet, because the error is in spanish) An Active Directory Domain Controller for This Domain Could Not be Contacted The DNS is correctly set, and client can ping by name and IP the server, the server can ping the client by IP. I've tested with the FW down to no avail. A host of other XP Pro clients are connected to the domain. I've restarted Net Logon and checked that Windows Time is up. Also the times are in sync between the server and the client. I'll put below diagnostics output. I'm wondering if there's anything special to be done on either the server or the client to have a Win 7 Pro join a 2k3 R2 domain. The following diagnostic information follows: netdiag /q for the DC dcdiag on the DC ipconfig /all on the Win 7 client netdiag /q on the DC: .................................. Computer Name: HI-X2 DNS Host Name: hi-x2.hi.local System info : Microsoft Windows Server 2003 R2 (Build 3790) Processor : EM64T Family 6 Model 23 Stepping 10, GenuineIntel List of installed hotfixes : KB923561 KB924667-v2 KB925398_WMP64 KB925902 KB926122 KB927891 KB929123 KB930178 KB932168 KB936357 KB938127 KB941569 KB942830 KB942831 KB943055 KB943460 KB944338-v2 KB944653 KB945553 KB946026 KB948496 KB950760 KB950762 KB950974 KB951066 KB951748 KB952004 KB952069 KB952954 KB954155 KB954550-v7 KB955069 KB955759 KB956572 KB956802 KB956803 KB956844 KB958469 KB958644 KB958869 KB959426 KB960225 KB960803 KB960859 KB961063 KB961118 KB961501 KB967715 KB967723 KB968389 KB968816 KB969059 KB969947 KB970238 KB970430 KB970483 KB971032 KB971468 KB971657 KB971737 KB971961 KB971961-IE8 KB972270 KB973037 KB973354 KB973507 KB973540 KB973687 KB973815 KB973825 KB973869 KB973904 KB973917-v2 KB974112 KB974318 KB974392 KB974571 KB975025 KB975467 KB975560 KB975713 KB976662-IE8 KB977290 KB977816 KB977914 KB978037 KB978262 KB978338 KB978542 KB978601 KB978706 KB979306 KB979309 KB979683 KB980182 KB980182-IE8 KB980232 KB980302-IE8 KB981332-IE8 KB981350 Q147222 Per interface results: Adapter : Local Area Connection Host Name. . . . . . . . . : hi-x2.hi.local IP Address . . . . . . . . : 10.0.1.199 Subnet Mask. . . . . . . . : 255.0.0.0 Default Gateway. . . . . . : 10.0.1.1 Dns Servers. . . . . . . . : 10.0.1.199 WINS service test. . . . . : Skipped Global results: [WARNING] You don't have a single interface with the 'WorkStation Service', 'Messenger Service', 'WINS' names defined. DNS test . . . . . . . . . . . . . : Passed PASS - All the DNS entries for DC are registered on DNS server '10.0.1.199'. IP Security test . . . . . . . . . : Skipped The command completed successfully dcdiag on the DC: Domain Controller Diagnosis Performing initial setup: Done gathering initial info. Doing initial required tests Testing server: Default-First-Site-Name\HI-X2 Starting test: Connectivity ......................... HI-X2 passed test Connectivity Doing primary tests Testing server: Default-First-Site-Name\HI-X2 Starting test: Replications ......................... HI-X2 passed test Replications Starting test: NCSecDesc ......................... HI-X2 passed test NCSecDesc Starting test: NetLogons ......................... HI-X2 passed test NetLogons Starting test: Advertising ......................... HI-X2 passed test Advertising Starting test: KnowsOfRoleHolders ......................... HI-X2 passed test KnowsOfRoleHolders Starting test: RidManager ......................... HI-X2 passed test RidManager Starting test: MachineAccount ......................... HI-X2 passed test MachineAccount Starting test: Services ......................... HI-X2 passed test Services Starting test: ObjectsReplicated ......................... HI-X2 passed test ObjectsReplicated Starting test: frssysvol ......................... HI-X2 passed test frssysvol Starting test: frsevent ......................... HI-X2 passed test frsevent Starting test: kccevent ......................... HI-X2 passed test kccevent Starting test: systemlog ......................... HI-X2 passed test systemlog Starting test: VerifyReferences ......................... HI-X2 passed test VerifyReferences Running partition tests on : ForestDnsZones Starting test: CrossRefValidation ......................... ForestDnsZones passed test CrossRefValidation Starting test: CheckSDRefDom ......................... ForestDnsZones passed test CheckSDRefDom Running partition tests on : DomainDnsZones Starting test: CrossRefValidation ......................... DomainDnsZones passed test CrossRefValidation Starting test: CheckSDRefDom ......................... DomainDnsZones passed test CheckSDRefDom Running partition tests on : Schema Starting test: CrossRefValidation ......................... Schema passed test CrossRefValidation Starting test: CheckSDRefDom ......................... Schema passed test CheckSDRefDom Running partition tests on : Configuration Starting test: CrossRefValidation ......................... Configuration passed test CrossRefValidation Starting test: CheckSDRefDom ......................... Configuration passed test CheckSDRefDom Running partition tests on : hi Starting test: CrossRefValidation ......................... hi passed test CrossRefValidation Starting test: CheckSDRefDom ......................... hi passed test CheckSDRefDom Running enterprise tests on : hi.local Starting test: Intersite ......................... hi.local passed test Intersite Starting test: FsmoCheck ......................... hi.local passed test FsmoCheck ipconfig /all on the Windows 7 client: Configuraci¢n IP de Windows Nombre de host. . . . . . . . . : hi-p6 Sufijo DNS principal . . . . . : Tipo de nodo. . . . . . . . . . : h¡brido Enrutamiento IP habilitado. . . : no Proxy WINS habilitado . . . . . : no Adaptador de LAN inal mbrica Conexi¢n de red inal mbrica: Sufijo DNS espec¡fico para la conexi¢n. . : Descripci¢n . . . . . . . . . . . . . . . : Intel(R) WiFi Link 5100 AGN Direcci¢n f¡sica. . . . . . . . . . . . . : 00-22-FB-63-47-A0 DHCP habilitado . . . . . . . . . . . . . : no Configuraci¢n autom tica habilitada . . . : s¡ Direcci¢n IPv4. . . . . . . . . . . . . . : 10.0.1.42(Preferido) M scara de subred . . . . . . . . . . . . : 255.255.255.0 Puerta de enlace predeterminada . . . . . : 10.0.1.1 Servidores DNS. . . . . . . . . . . . . . : 10.0.1.199 NetBIOS sobre TCP/IP. . . . . . . . . . . : habilitado Adaptador de Ethernet Conexi¢n de  rea local: Estado de los medios. . . . . . . . . . . : medios desconectados Sufijo DNS espec¡fico para la conexi¢n. . : Descripci¢n . . . . . . . . . . . . . . . : Realtek PCIe GBE Family Controller Direcci¢n f¡sica. . . . . . . . . . . . . : 00-1E-33-1F-35-B1 DHCP habilitado . . . . . . . . . . . . . : s¡ Configuraci¢n autom tica habilitada . . . : s¡ Adaptador de t£nel isatap.{8926581E-09AC-4123-906B-DA6386AD2D60}: Estado de los medios. . . . . . . . . . . : medios desconectados Sufijo DNS espec¡fico para la conexi¢n. . : Descripci¢n . . . . . . . . . . . . . . . : Adaptador ISATAP de Microsoft Direcci¢n f¡sica. . . . . . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP habilitado . . . . . . . . . . . . . : no Configuraci¢n autom tica habilitada . . . : s¡ Adaptador de t£nel Teredo Tunneling Pseudo-Interface: Sufijo DNS espec¡fico para la conexi¢n. . : Descripci¢n . . . . . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface Direcci¢n f¡sica. . . . . . . . . . . . . : 00-00-00-00-00-00-00-E0 DHCP habilitado . . . . . . . . . . . . . : no Configuraci¢n autom tica habilitada . . . : s¡ Direcci¢n IPv6 . . . . . . . . . . : 2001:0:5ef5:73ba:1cec:3883:f5ff:fed5(Preferido) V¡nculo: direcci¢n IPv6 local. . . : fe80::1cec:3883:f5ff:fed5%13(Preferido) Puerta de enlace predeterminada . . . . . : :: NetBIOS sobre TCP/IP. . . . . . . . . . . : deshabilitado

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  • How to allow unprivileged apache/PHP to do a root task (CentOS)

    - by Chris
    I am setting up a sort of personal dropbox for our customers on a CentOS 6.3 machine. The server will be accessible thru SFTP and a proprietary http service base on PHP. This machine will be in our DMZ so it has to be secure. Because of this I have apache running as an unprivileged user, hardened the security on apache, the OS, PHP, applied a lot of filtering in iptables and applied some restrictive TCP Wrappers. Now you might have suspected this one was coming, SELinux is also set to enforcing. I'm setting up PAM to use MySQL so my users in the web application can login. These users will all be in a group that can use SSH only for SFTP and users will be chrooted to their own 'home' folder. To allow this SELinux wants the folders to have the user_home_t tag. Also the parent directory needs to be writable by root only. If these restrictions are not met SELinux will kill the SSH pipe immediately. The files that need to be accessible thru both http and SFTP so I have made a SELinux module to allow Apache to search/attr/read/write etc. to directories with the user_home_dir_t tag. As sftp users are stored in MySQL I want to setup their home dirs upon user creation. This is a problem since Apache has no write access to the /home dir, it's only writable by root since it's required to keep SELinux and OpenSSH happy. Basically I need to let Apache do only a few tasks as root and only within /home. So I need to somehow elevate the privileges temporarily or let root do these tasks for apache instead. What I need to have apache do with root privileges is the following. mkdir /home/userdir/ mkdir /home/userdir/userdir chmod -R 0755 /home/userdir umask 011 /home/userdir/userdir chcon -R -t user_home_t /home/userdir chown -R user:sftp_admin /home/userdir/userdir chmod 2770 /home/userdir/userdir This would create a home for the user, now I have an idea that might work, cron. That would mean the server needs to check for users that have no home every minute, then when creating users the interface would freeze for an average of 30 seconds before the account creation can be confirmed which I do not prefer. Does anybody know if something can be done with sudoers? Or any other idea's are welcome... Thanks for your time!

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