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• Postfix not delivering email using Maildir

  - by Greg K

  I've followed this guide to get postfix set up. I've not completed it yet, as from sending test emails, email is no longer being delivered since switching to Maildir from mbox. I have created a Maildir directory with cur, new and tmp sub directories. ~$ ll drwxrwxr-x 5 greg greg 4096 2012-07-07 16:40 Maildir/ ~$ ll Maildir/ drwxrwxr-x 2 greg greg 4096 2012-07-07 16:40 cur drwxrwxr-x 2 greg greg 4096 2012-07-07 16:40 new drwxrwxr-x 2 greg greg 4096 2012-07-07 16:40 tmp Send a test email. ~$ netcat mail.example.com 25 220 ubuntu ESMTP Postfix (Ubuntu) ehlo example.com 250-ubuntu 250-PIPELINING 250-SIZE 10240000 250-VRFY 250-ETRN 250-STARTTLS 250-ENHANCEDSTATUSCODES 250-8BITMIME 250 DSN mail from: [email protected] 250 2.1.0 Ok rcpt to: [email protected] 250 2.1.5 Ok data 354 End data with <CR><LF>.<CR><LF> Subject: test email Hi, Just testing. . 250 2.0.0 Ok: queued as 56B541EA53 quit 221 2.0.0 Bye Check the mail queue. ~$ mailq Mail queue is empty Check if mail has been delivered. ~$ ls -l Maildir/new total 0 Some postfix settings: ~$ sudo postconf home_mailbox home_mailbox = Maildir/ ~$ sudo postconf mailbox_command mailbox_command = /var/log/mail.log Jul 7 16:57:33 li305-246 postfix/smtpd[21039]: connect from example.com[178.79.168.xxx] Jul 7 16:58:14 li305-246 postfix/smtpd[21039]: 56B541EA53: client=example.com[178.79.168.xxx] Jul 7 16:58:33 li305-246 postfix/cleanup[21042]: 56B541EA53: message-id=<20120707155814.56B541EA53@ubuntu> Jul 7 16:58:33 li305-246 postfix/qmgr[20882]: 56B541EA53: from=<[email protected]>, size=321, nrcpt=1 (queue active) Jul 7 16:58:33 li305-246 postfix/smtp[21043]: 56B541EA53: to=<[email protected]>, relay=none, delay=30, delays=30/0.01/0/0, dsn=5.4.6, status=bounced (mail for example.com loops back to myself) Jul 7 16:58:33 li305-246 postfix/cleanup[21042]: 1F68B1EA55: message-id=<20120707155833.1F68B1EA55@ubuntu> Jul 7 16:58:33 li305-246 postfix/bounce[21044]: 56B541EA53: sender non-delivery notification: 1F68B1EA55 Jul 7 16:58:33 li305-246 postfix/qmgr[20882]: 1F68B1EA55: from=<>, size=1999, nrcpt=1 (queue active) Jul 7 16:58:33 li305-246 postfix/qmgr[20882]: 56B541EA53: removed Jul 7 16:58:33 li305-246 postfix/smtp[21043]: 1F68B1EA55: to=<[email protected]>, relay=none, delay=0, delays=0/0/0/0, dsn=5.4.6, status=bounced (mail for example.com loops back to myself) Jul 7 16:58:33 li305-246 postfix/qmgr[20882]: 1F68B1EA55: removed Jul 7 16:58:36 li305-246 postfix/smtpd[21039]: disconnect from domain.me[178.79.168.xxx] Jul 7 17:10:38 li305-246 postfix/master[20878]: terminating on signal 15 Jul 7 17:10:39 li305-246 postfix/master[21254]: daemon started -- version 2.8.5, configuration /etc/postfix Any ideas?

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• Alternatives to Windows-builtin checkdisk utility for NTFS?

  - by t-a-w

  For some reason Windows 7's checkdisk freezes and doesn't move its progress bar forward for over an hour, while the disk is still supposedly active. Now it's possible that if I left it overnight it would finally figure out how to progress, but are there any other programs with similar functionality I could use instead?

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• Elasticsearch won't start anymore

  - by Oleander

  I restarted my elasticsearch instance 5 days ago and I haven't manage to start it since then. I get no output in the log file /var/log/elasticsearch/ nor does the elasticsearch binary print any information when running at using elasticsearch -f. I once manage to get this output. [2012-11-15 22:51:18,427][INFO ][node ] [Piper] {0.19.11}[29584]: initializing ... [2012-11-15 22:51:18,433][INFO ][plugins ] [Piper] loaded [], sites [] Running curl http://localhost:9200 resulted in curl: (7) couldn't connect to host. I've tried increasing the memory from 3gb to 10gb, but that didn't make any diffrence. Running /etc/init.d/elasticsearch start takes 30 seconds. ps aux | grep elasticsearch results in this output. /usr/local/share/elasticsearch/bin/service/exec/elasticsearch-linux-x86-64 /usr/local/share/elasticsearch/bin/service/elasticsearch.conf wrapper.syslog.ident=elasticsearch wrapper.pidfile=/usr/local/share/elasticsearch/bin/service/./elasticsearch.pid wrapper.name=elasticsearch wrapper.displayname=ElasticSearch wrapper.daemonize=TRUE wrapper.statusfile=/usr/local/share/elasticsearch/bin/service/./elasticsearch.status wrapper.java.statusfile=/usr/local/share/elasticsearch/bin/service/./elasticsearch.java.status wrapper.script.version=3.5.14 /usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java -Delasticsearch-service -Des.path.home=/usr/local/share/elasticsearch -Xss256k -XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:CMSInitiatingOccupancyFraction=75 -XX:+UseCMSInitiatingOccupancyOnly -XX:+HeapDumpOnOutOfMemoryError -Djava.awt.headless=true -Xms1024m -Xmx1024m -Djava.library.path=/usr/local/share/elasticsearch/bin/service/lib -classpath /usr/local/share/elasticsearch/bin/service/lib/wrapper.jar:/usr/local/share/elasticsearch/lib/elasticsearch-0.19.11.jar:/usr/local/share/elasticsearch/lib/elasticsearch-0.19.11.jar:/usr/local/share/elasticsearch/lib/jna-3.3.0.jar:/usr/local/share/elasticsearch/lib/log4j-1.2.17.jar:/usr/local/share/elasticsearch/lib/lucene-analyzers-3.6.1.jar:/usr/local/share/elasticsearch/lib/lucene-core-3.6.1.jar:/usr/local/share/elasticsearch/lib/lucene-highlighter-3.6.1.jar:/usr/local/share/elasticsearch/lib/lucene-memory-3.6.1.jar:/usr/local/share/elasticsearch/lib/lucene-queries-3.6.1.jar:/usr/local/share/elasticsearch/lib/snappy-java-1.0.4.1.jar:/usr/local/share/elasticsearch/lib/sigar/sigar-1.6.4.jar -Dwrapper.key=k7r81VpK3_Bb3N_5 -Dwrapper.port=32000 -Dwrapper.jvm.port.min=31000 -Dwrapper.jvm.port.max=31999 -Dwrapper.disable_console_input=TRUE -Dwrapper.pid=23888 -Dwrapper.version=3.5.14 -Dwrapper.native_library=wrapper -Dwrapper.service=TRUE -Dwrapper.cpu.timeout=10 -Dwrapper.jvmid=1 org.tanukisoftware.wrapper.WrapperSimpleApp org.elasticsearch.bootstrap.ElasticSearchF My current system: ElasticSearch Version: 0.19.11, JVM: 23.2-b09 Ubuntu 12.04 LTS I've tried re-install elasticsearch, removing old directories. Why can't I get it to start?

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• IPSEC site-to-site Openswan to Cisco ASA

  - by Jim

  I recieved a list of commands that were run on the right side of the VPN tunnel which is where the Cisco ASA resides. On my side, I have a linux based firewall running debian with openswan installed. I am having an issue with getting to Phase 2 of the VPN negotiation. Here is the Cisco Information I was sent: {my_public_ip} = left side of connection tunnel-group {my_public_ip} type ipsec-l2l tunnel-group {my_public_ip} ipsec-attributes pre-shared-key fakefake crypto map vpn1 1 match add customer-ipsec crypto map vpn1 1 set peer {my_public_ip} crypto map vpn1 1 set transform-set aes-256-sha crypto map vpn1 interface outside static (outside,inside) 10.2.1.200 {my_public_ip} netmask 255.255.255.255 crypto ipsec transform-set aes-256-sha esp-aes-256 esp-sha-hmac crypto ipsec security-association lifetime seconds 28800 crypto ipsec security-association lifetime kilobytes 4608000 crypto map vpn1 1 match address customer-ipsec crypto map vpn1 1 set peer {my_public_ip} crypto map vpn1 1 set transform-set aes-256-sha crypto map vpn1 interface outside crypto isakmp enable outside crypto isakmp policy 1 authentication pre-share encryption aes-256 hash sha group 2 lifetime 86400 Myside ipsec.conf config setup klipsdebug=none plutodebug=none protostack=netkey #nat_traversal=yes conn cisco #name of VPN connection type=tunnel authby=secret #left side (myside) left={myPublicIP} leftsubnet=172.16.250.0/24 #net subnet on left sdie to assign to right side leftnexthop=%defaultroute #right security gateway (ASA side) right={CiscoASA_publicIP} #cisco ASA rightsubnet=10.2.1.0/24 rightnexthop=%defaultroute #crypo stuff keyexchange=ike ikelifetime=86400s auth=esp pfs=no compress=no auto=start ipsec.secrets file {CiscoASA_publicIP} {myPublicIP}: PSK "fakefake" When I start ipsec from the left side/my side I don't recieve any errors, however when I run the ipsec auto --status command: 000 "cisco": 172.16.250.0/24==={left_public_ip}<{left_public_ip}>[+S=C]---{left_public_ip_gateway}...{left_public_ip_gateway}--{right_public_ip}<{right_public_ip}>[+S=C]===10.2.1.0/24; prospective erouted; eroute owner: #0 000 "cisco": myip=unset; hisip=unset; 000 "cisco": ike_life: 86400s; ipsec_life: 28800s; rekey_margin: 540s; rekey_fuzz: 100%; keyingtries: 0 000 "cisco": policy: PSK+ENCRYPT+TUNNEL+UP+IKEv2ALLOW+SAREFTRACK+lKOD+rKOD; prio: 24,24; interface: eth0; 000 "cisco": newest ISAKMP SA: #0; newest IPsec SA: #0; 000 000 #2: "cisco":500 STATE_MAIN_I1 (sent MI1, expecting MR1); EVENT_RETRANSMIT in 10s; nodpd; idle; import:admin initiate 000 #2: pending Phase 2 for "cisco" replacing #0 Now I'm new to setting up an site-to-site IPSEC tunnel so the status informatino I am unsure what it means. All I know is it sits at this "pending Phase 2" and I can't ping the other side, Another question I have is, if I do a route -n, should I see anything relating to this connection? Also, I read a few artilcle where configs contained the interface="ipsec0=eth0", is this an interface that I have to create on the linux debian firewall on my side? Appreciate your time to look at this.

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• internet disconnects

  - by Smokezzaj

  Internet disconnects and reconnects, computer is in a peer to peer workstation with two other computers XP o/s. Only one computer has this problem the other two don't disconnect. Computer's connect to switch no router is being used. Ipconfig shows a DHCP connection, local area connection status shows packets being sent out but packets are not being received or being received at a extremely slow rate. Tried Winstock tool, reinstalling network card driver, restored to previous date, checked ethernet cable and release/renew IP.

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• Can radius interact with pptp beyond authentication?

  - by Joe

  I've managed to setup pptp to use Radius authentication - making it much easier to manage users in an sql database than the default password file. However, ideally I'd like to be able to get the status of these users and disconnect/manage them as Radius allows - is this possible? If so, could you elaborate and point me in the right direction? All help is much appreciated! Edit I am personally using Debian and the standard aptitude packages for pptp and FreeRADIUS.

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• Why doesn't Apache start from xampp control panel after changes to vhosts config?

  - by Grafica

  I'm running xampp on my local server, and want to host multiple sites, so I changed the httpd-vhosts.conf file. Will somebody let me know if there is something wrong with my code? Apache was running while I had only one site in the config, but after I added another site, I stopped apache, and I'm not able to restart it. # # Virtual Hosts # # If you want to maintain multiple domains/hostnames on your # machine you can setup VirtualHost containers for them. Most configurations # use only name-based virtual hosts so the server doesn't need to worry about # IP addresses. This is indicated by the asterisks in the directives below. # # Please see the documentation at # <URL:http://httpd.apache.org/docs/2.2/vhosts/> # for further details before you try to setup virtual hosts. # # You may use the command line option '-S' to verify your virtual host # configuration. # # Use name-based virtual hosting. # ##NameVirtualHost *:80 # # VirtualHost example: # Almost any Apache directive may go into a VirtualHost container. # The first VirtualHost section is used for all requests that do not # match a ServerName or ServerAlias in any <VirtualHost> block. # ##<VirtualHost *:80> ##ServerAdmin [email protected] ##DocumentRoot "C:/xampp/htdocs/dummy-host.localhost" ##ServerName dummy-host.localhost ##ServerAlias www.dummy-host.localhost ##ErrorLog "logs/dummy-host.localhost-error.log" ##CustomLog "logs/dummy-host.localhost-access.log" combined ##</VirtualHost> ##<VirtualHost *:80> ##ServerAdmin [email protected] ##DocumentRoot "C:/xampp/htdocs/dummy-host2.localhost" ##ServerName dummy-host2.localhost ##ServerAlias www.dummy-host2.localhost ##ErrorLog "logs/dummy-host2.localhost-error.log" ##CustomLog "logs/dummy-host2.localhost-access.log" combined ##</VirtualHost> NameVirtualHost * <VirtualHost *> DocumentRoot "C:\xampp\htdocs" ServerName localhost </VirtualHost> <VirtualHost *> DocumentRoot "C:\xampp\htdocs" ServerName evamagnus.com <Directory "C:\xampp\htdocs\"> Order allow,deny Allow from all </Directory> </VirtualHost> <VirtualHost *> DocumentRoot "C:\xampp\htdocs2\" ServerName mygrafica.com <Directory "C:\xampp\htdocs2\"> Order allow,deny Allow from all </Directory> </VirtualHost> Here is what it says in the control panel: 2:17:37 PM [apache] Starting apache service... 2:17:38 PM [apache] Status change detected: running 2:17:39 PM [apache] Status change detected: stopped Thanks in advance.

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• OpenVPN Clients using server's connection (with no default gateway)

  - by Branden Martin

  I wanted an OpenVPN server so that I could create a private VPN network for staff to connect to the server. However, not as planned, when clients connect to the VPN, it's using the VPN's internet connection (ex: when going to whatsmyip.com, it's that of the server and not the clients home connection). server.conf local <serverip> port 1194 proto udp dev tun ca ca.crt cert x.crt key x.key dh dh1024.pem server 10.8.0.0 255.255.255.0 ifconfig-pool-persist ipp.txt client-to-client keepalive 10 120 comp-lzo persist-key persist-tun status openvpn-status.log verb 9 client.conf client dev tun proto udp remote <srever> 1194 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert x.crt key x.key ns-cert-type server comp-lzo verb 3 Server's route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 10.8.0.2 * 255.255.255.255 UH 0 0 0 tun0 10.8.0.0 10.8.0.2 255.255.255.0 UG 0 0 0 tun0 69.64.48.0 * 255.255.252.0 U 0 0 0 eth0 default static-ip-69-64 0.0.0.0 UG 0 0 0 eth0 default static-ip-69-64 0.0.0.0 UG 0 0 0 eth0 default static-ip-69-64 0.0.0.0 UG 0 0 0 eth0 Server's IP Tables Chain INPUT (policy ACCEPT) target prot opt source destination fail2ban-proftpd tcp -- anywhere anywhere multiport dports ftp,ftp-data,ftps,ftps-data fail2ban-ssh tcp -- anywhere anywhere multiport dports ssh ACCEPT udp -- anywhere anywhere udp dpt:domain ACCEPT tcp -- anywhere anywhere tcp dpt:20000 ACCEPT tcp -- anywhere anywhere tcp dpt:webmin ACCEPT tcp -- anywhere anywhere tcp dpt:https ACCEPT tcp -- anywhere anywhere tcp dpt:www ACCEPT tcp -- anywhere anywhere tcp dpt:imaps ACCEPT tcp -- anywhere anywhere tcp dpt:imap2 ACCEPT tcp -- anywhere anywhere tcp dpt:pop3s ACCEPT tcp -- anywhere anywhere tcp dpt:pop3 ACCEPT tcp -- anywhere anywhere tcp dpt:ftp-data ACCEPT tcp -- anywhere anywhere tcp dpt:ftp ACCEPT tcp -- anywhere anywhere tcp dpt:domain ACCEPT tcp -- anywhere anywhere tcp dpt:smtp ACCEPT tcp -- anywhere anywhere tcp dpt:ssh ACCEPT all -- anywhere anywhere Chain FORWARD (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED ACCEPT all -- 10.8.0.0/24 anywhere REJECT all -- anywhere anywhere reject-with icmp-port-unreachable Chain OUTPUT (policy ACCEPT) target prot opt source destination Chain fail2ban-proftpd (1 references) target prot opt source destination RETURN all -- anywhere anywhere Chain fail2ban-ssh (1 references) target prot opt source destination RETURN all -- anywhere anywhere My goal is that clients can only talk to the server and other clients that are connected. Hope I made sense. Thanks for the help!

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• How to use dpkg of busybox

  - by Daniel YC Lin

  I'm trying to install pkg in a limited space embedded system. I use busybox's dpkg. To let dpkg work, I just touch a file touch /var/lib/dpkg/status But, it still can not work. $dpkg -i ntpdate_4.2.4p4+dfsg-8lenny3_sh4.deb dpkg: package ntpdate depends on netbase, which is not installed or flagged to be installed How to flag the netbase as installed?

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• iPhone 3G refuses to transfer purchased apps to iTunes

  - by andynormancx

  My iPhone 3G refuses to transfer purchased apps to iTunes. This is causing me major problems with syncing. Whenever I attempt to transfer apps from the iPhone to iTunes it goes through the motions, but never actually transfers anything. It displays the various apps in the info area at the top of the screen, but the progress bar never advances. In comparison when I sync other iPhones, using the same install of iTunes, the progress bar advances and apps are transferred. The same also happens on clean installs of iTunes on other computers, it seems to be my iPhone that is the common factor. I have tried restoring the phone from a backup, which makes no difference. This started happening months ago and the phone has since been upgraded to 3.0 and 3.1, but the problem still persists. Originally it was just a minor irritation, but I made and attempt to fix it which has made things worse. I deleted all the apps from with iTunes and then did "Transfer purchases" in the hope that it might fix something. It didn't fix anything. Also, I cannot now sync at all. If I do sync iTunes now does "transferring purchases", fails to transfer and then deletes all the apps (and data) from my iPhone. It also means I can't sync music, podcasts or anything else. I can't sync anything else, because I can't temporarily turn off app syncing because then iTunes warns that the apps on the iPhone will be deleted. I also tried de-authorising and re-authorising. What can I do to get app syncing working again ? P.S. I have considered deleting all the apps and reinstalling them one by one, in the hope that it will fix the problem. However I don't really want to embark on doing that for 55+ apps and re-entering login details etc for the apps that need them, especially as I might then find out it didn't solve the problem. Update: The latest update to iTunes 9 has improved things in one key aspect. If I let a sync run to completion iTunes no longer deletes all the apps from my phone. So I can now sync all my other data, even if I still can't sync my apps. Resolved: See my answer to the question for how I finally resolved the problem.

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• Add DNS record for subdomain on different web hotel

  - by Martin Wiboe

  Hi, I am quite inexperienced with DNS, so this might be simple. Our main domain foo.com is hosted at provider A. Now, we would like to host bar.foo.com at some other provider B - they have the domain set up with them, so I figure that I can do this by somehow adding the nameserver at provider B to the DNS configuration at provider A. The current DNS config is as follows: http://imgur.com/kG099.png How can I add the new subdomain to this configuration? Regards, Martin Wiboe

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• Windows: Health monitoring software.

  - by Feryt

  Hi there. I'm looking for application health monitoring system. It must meets this creterias : running on windows(IIS) web front-end monitor status of a server and web application free / opensource Thank you.

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• Having trouble Getting "RTSP over HTTP"

  - by Muhammad Adeel Zahid

  There is an axis camera that is connected to our site (camba.tv) through axis one click connection component (which acts as proxy). We can communicate with this camera only through http by setting the proxy to our OCCC server's address. If we want to get RTSP streams (h.264) we are only left with "RTSP over HTTP" option. For this I have followed axis VAPIX 3 documentation section 3.3. I issue requests through fiddler but don't get any response. But when i put the URL (axrtsphttp://1.00408CBEA38B/axis-media/media.amp) in windows media player (with proxy set to OCCC server 212.78.237.156:3128) the player is able to get RTSP stream over HTTP after logging in. I have created a request trace of communication between camera and windows media player through wireshark and the request that brings the stream looks like http://1.00408cbea38b/axis-media/media.amp HTTP/1.1 x-sessioncookie: 619 User-Agent: Axis AMC Host: 1.00408CBEA38B Proxy-Connection: Keep-Alive Pragma: no-cache Authorization: Digest username="root",realm="AXIS_00408CBEA38B",nonce="000a8b40Y0100409c13ac7e6cceb069289041d8feb1691",uri="/axis-media/media.amp",cnonce="9946e2582bd590418c9b70e1b17956c7",nc=00000001,response="f3cab86fc84bfe33719675848e7fdc0a",qop="auth" HTTP/1.0 200 OK Content-Type: application/x-rtsp-tunnelled Date: Tue, 02 Nov 2010 11:45:23 GMT RTSP/1.0 200 OK CSeq: 1 Content-Type: application/sdp Content-Base: rtsp://1.00408CBEA38B/axis-media/media.amp/ Date: Tue, 02 Nov 2010 11:45:23 GMT Content-Length: 410 v=0 o=- 1288698323798001 1288698323798001 IN IP4 1.00408CBEA38B s=Media Presentation e=NONE c=IN IP4 0.0.0.0 b=AS:50000 t=0 0 a=control:* a=range:npt=0.000000- m=video 0 RTP/AVP 96 b=AS:50000 a=framerate:30.0 a=transform:1,0,0;0,1,0;0,0,1 a=control:trackID=1 a=rtpmap:96 H264/90000 a=fmtp:96 packetization-mode=1; profile-level-id=420029; sprop-parameter-sets=Z0IAKeNQFAe2AtwEBAaQeJEV,aM48gA== RTSP/1.0 200 OK CSeq: 2 Session: 3F4763D8; timeout=60 Transport: RTP/AVP/TCP;unicast;interleaved=0-1;ssrc=060922C6;mode="PLAY" Date: Tue, 02 Nov 2010 11:45:24 GMT RTSP/1.0 200 OK CSeq: 3 Session: 3F4763D8 Range: npt=0- RTP-Info: url=rtsp://1.00408CBEA38B/axis-media/media.amp/trackID=1;seq=7392;rtptime=4190934902 Date: Tue, 02 Nov 2010 11:45:24 GMT [Binary Stream Content] But when i copy this request to fiddler, I only get 200 status code with content-type set to application/x-rtsp-tunneled and there is no stream data. The only thing i do different with stream is to use Basic in authorization header instead of Digest and I do not get 401 (Un authorized) status code. Can anyone explain what's happening here? How can I write request sequences to get stream in fiddler? If it is needed, I can upload the wireshark request dump somewhere.

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• Bind9 wont start on ubuntu 9.10

  - by Logikdev

  Ever since i've upgraded to ubuntu 9.10, bind9 wont start: Setting up bind9 (1:9.6.1.dfsg.P1-3ubuntu0.2) ... * Starting domain name service... bind9 [fail] invoke-rc.d: initscript bind9, action "start" failed. dpkg: error processing bind9 (--configure): subprocess installed post-installation script returned error exit status 1 Errors were encountered while processing: bind9 E: Sub-process /usr/bin/dpkg returned an error code (1) Any ideas?

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• Linux buffer cache effect on IO writes?

  - by Patrick LeBoutillier

  I'm copying large files (3 x 30G) between 2 filesystems on a Linux server (kernel 2.6.37, 16 cores, 32G RAM) and I'm getting poor performance. I suspect that the usage of the buffer cache is killing the I/O performance. To try and narrow down the problem I used fio directly on the SAS disk to monitor the performance. Here is the output of 2 fio runs (the first with direct=1, the second one direct=0): Config: [test] rw=write blocksize=32k size=20G filename=/dev/sda # direct=1 Run 1: test: (g=0): rw=write, bs=32K-32K/32K-32K, ioengine=sync, iodepth=1 Starting 1 process Jobs: 1 (f=1): [W] [100.0% done] [0K/205M /s] [0/6K iops] [eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=4667 write: io=20,480MB, bw=199MB/s, iops=6,381, runt=102698msec clat (usec): min=104, max=13,388, avg=152.06, stdev=72.43 bw (KB/s) : min=192448, max=213824, per=100.01%, avg=204232.82, stdev=4084.67 cpu : usr=3.37%, sys=16.55%, ctx=655410, majf=0, minf=29 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued r/w: total=0/655360, short=0/0 lat (usec): 250=99.50%, 500=0.45%, 750=0.01%, 1000=0.01% lat (msec): 2=0.01%, 4=0.02%, 10=0.01%, 20=0.01% Run status group 0 (all jobs): WRITE: io=20,480MB, aggrb=199MB/s, minb=204MB/s, maxb=204MB/s, mint=102698msec, maxt=102698msec Disk stats (read/write): sda: ios=0/655238, merge=0/0, ticks=0/79552, in_queue=78640, util=76.55% Run 2: test: (g=0): rw=write, bs=32K-32K/32K-32K, ioengine=sync, iodepth=1 Starting 1 process Jobs: 1 (f=1): [W] [100.0% done] [0K/0K /s] [0/0 iops] [eta 00m:00s] test: (groupid=0, jobs=1): err= 0: pid=4733 write: io=20,480MB, bw=91,265KB/s, iops=2,852, runt=229786msec clat (usec): min=16, max=127K, avg=349.53, stdev=4694.98 bw (KB/s) : min=56013, max=1390016, per=101.47%, avg=92607.31, stdev=167453.17 cpu : usr=0.41%, sys=6.93%, ctx=21128, majf=0, minf=33 IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0% submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0% issued r/w: total=0/655360, short=0/0 lat (usec): 20=5.53%, 50=93.89%, 100=0.02%, 250=0.01%, 500=0.01% lat (msec): 2=0.01%, 4=0.01%, 10=0.01%, 20=0.01%, 50=0.12% lat (msec): 100=0.38%, 250=0.04% Run status group 0 (all jobs): WRITE: io=20,480MB, aggrb=91,265KB/s, minb=93,455KB/s, maxb=93,455KB/s, mint=229786msec, maxt=229786msec Disk stats (read/write): sda: ios=8/79811, merge=7/7721388, ticks=9/32418456, in_queue=32471983, util=98.98% I'm not knowledgeable enough with fio to interpret the results, but I don't expect the overall performance using the buffer cache to be 50% less than with O_DIRECT. Can someone help me interpret the fio output? Are there any kernel tunings that could fix/minimize the problem? Thanks a lot,

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• ISA 2006 Ent with NLB configuration

  - by Nagori

  Hello We have created to virtual machines and installed ISA 2006 Ent and enable NLB configuration, each machine has two NIC one connected to LAN and other connected to DMZ, we are not able to ping DMZ subnet IP of ISA from another machine which is on same DMZ subnet even though we have diable the all ISA services (including firewall). But we can ping LAN IP from all our internal subnets and this ping is working with ISA services are started or stop status Thank you

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• Redirect 404 errors without rewriting the URL

  - by Knocks X

  Is it possible to have an erroneous URL remain in the address bar while redirecting the user to a URL within my domain? I want www.domain.com/forum to be the actual site being served in all 404 circumstances but I don't want the referring URL to be rewritten (other than the domain portion, which is being done on the registrar level). This is my current .htaccess RewriteEngine On RedirectMatch permanent ^/$ http://www.domain.com/forum/ RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule .* http://www.domain.com/forum/ [L,R]

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• SSH closing by itself - root works fine

  - by Antti

  I'm trying to connect to a server but if i use any other user than root the connection closes itself after a successful login: XXXXXXX:~ user$ ssh -v [email protected] OpenSSH_5.2p1, OpenSSL 0.9.8l 5 Nov 2009 debug1: Reading configuration data /etc/ssh_config debug1: Connecting to XXXXXXX.XXXXXX.XXX [xxx.xxx.xxx.xxx] port 22. debug1: Connection established. debug1: identity file /Users/user/.ssh/identity type -1 debug1: identity file /Users/user/.ssh/id_rsa type -1 debug1: identity file /Users/user/.ssh/id_dsa type 2 debug1: Remote protocol version 2.0, remote software version OpenSSH_4.3 debug1: match: OpenSSH_4.3 pat OpenSSH_4* debug1: Enabling compatibility mode for protocol 2.0 debug1: Local version string SSH-2.0-OpenSSH_5.2 debug1: SSH2_MSG_KEXINIT sent debug1: SSH2_MSG_KEXINIT received debug1: kex: server->client aes128-ctr hmac-md5 none debug1: kex: client->server aes128-ctr hmac-md5 none debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP debug1: SSH2_MSG_KEX_DH_GEX_INIT sent debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY debug1: Host 'XXXXXXX.XXXXXX.XXX' is known and matches the RSA host key. debug1: Found key in /Users/user/.ssh/known_hosts:12 debug1: ssh_rsa_verify: signature correct debug1: SSH2_MSG_NEWKEYS sent debug1: expecting SSH2_MSG_NEWKEYS debug1: SSH2_MSG_NEWKEYS received debug1: SSH2_MSG_SERVICE_REQUEST sent debug1: SSH2_MSG_SERVICE_ACCEPT received debug1: Authentications that can continue: publickey,gssapi-with-mic,password debug1: Next authentication method: publickey debug1: Offering public key: /Users/user/.ssh/woo_openssh debug1: Authentications that can continue: publickey,gssapi-with-mic,password debug1: Offering public key: /Users/user/.ssh/sidlee.dsa debug1: Authentications that can continue: publickey,gssapi-with-mic,password debug1: Trying private key: /Users/user/.ssh/identity debug1: Trying private key: /Users/user/.ssh/id_rsa debug1: Offering public key: /Users/user/.ssh/id_dsa debug1: Authentications that can continue: publickey,gssapi-with-mic,password debug1: Next authentication method: password [email protected]'s password: debug1: Authentication succeeded (password). debug1: channel 0: new [client-session] debug1: Entering interactive session. Last login: Mon Mar 29 01:41:51 2010 from 193.67.179.2 debug1: client_input_channel_req: channel 0 rtype exit-status reply 0 debug1: channel 0: free: client-session, nchannels 1 Connection to XXXXXXX.XXXXXX.XXX closed. Transferred: sent 2976, received 2136 bytes, in 0.5 seconds Bytes per second: sent 5892.2, received 4229.1 debug1: Exit status 1 If i log in as root the exact same way it works as expected. I've added the users i want to log in with to a group (sshusers) and added that group to /etc/sshd_config: AllowGroups sshusers I'm not sure what to try next as i don't get a clear error anywhere. I would like to enable specific accounts to log in so that i can disable root. This is a GridServer/Media Temple (CentOS).

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• Certain SFTP user cannot connect

  - by trobrock

  I have my Ubuntu Server set up so users with the group of sftponly can connect with sftp, but have a shell of /bin/false, and they connect to their home directories. This is working fine with three of the user accounts I have. But I added a new user account today the same way that I added the others and it will not successfully connect. sftp -vvv user@hostname debug1: Next authentication method: password user@hostname's password: debug3: packet_send2: adding 48 (len 73 padlen 7 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: Authentication succeeded (password). debug2: fd 5 setting O_NONBLOCK debug3: fd 6 is O_NONBLOCK debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting [email protected] debug1: Entering interactive session. debug1: channel 0: free: client-session, nchannels 1 debug3: channel 0: status: The following connections are open: #0 client-session (t3 r-1 i0/0 o0/0 fd 5/6 cfd -1) debug3: channel 0: close_fds r 5 w 6 e 7 c -1 debug1: fd 0 clearing O_NONBLOCK debug3: fd 1 is not O_NONBLOCK Connection to hostname closed by remote host. Transferred: sent 2176, received 1848 bytes, in 0.0 seconds Bytes per second: sent 127453.3, received 108241.6 debug1: Exit status -1 Connection closed For a successful user: sftp -vvv good_user@hostname debug1: Next authentication method: password good_user@hostname's password: debug3: packet_send2: adding 48 (len 63 padlen 17 extra_pad 64) debug2: we sent a password packet, wait for reply debug1: Authentication succeeded (password). debug2: fd 5 setting O_NONBLOCK debug3: fd 6 is O_NONBLOCK debug1: channel 0: new [client-session] debug3: ssh_session2_open: channel_new: 0 debug2: channel 0: send open debug1: Requesting [email protected] debug1: Entering interactive session. debug2: callback start debug2: client_session2_setup: id 0 debug1: Sending subsystem: sftp debug2: channel 0: request subsystem confirm 1 debug2: fd 3 setting TCP_NODELAY debug2: callback done debug2: channel 0: open confirm rwindow 0 rmax 32768 debug2: channel 0: rcvd adjust 2097152 debug2: channel_input_status_confirm: type 99 id 0 debug2: subsystem request accepted on channel 0 debug2: Remote version: 3 debug2: Server supports extension "[email protected]" revision 1 debug2: Server supports extension "[email protected]" revision 2 debug2: Server supports extension "[email protected]" revision 2 debug3: Sent message fd 3 T:16 I:1 debug3: SSH_FXP_REALPATH . -> / sftp> I cannot figure out why one user will work and the other wont, I have restart the ssh service after adding the user. I have even removed the user and added them again to be sure I am adding it correctly.

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• how to get CPU utilization in zabbix from Windows server?

  - by kusoksna

  I'm trying to monitor CPU utilization of windows 7 32bit PC (C2D E8400) using zabbix. I tried both "perf_counter[\Processor Information(_Total)\% Processor Time]" and "system.cpu.util[,system,avg5]". After some time status of these items reverted itself to "Unsupported". Is this problem on agent side, or at server? How to fix it? Ideally I want to see percentages load per each core. UPD: topic and description updated.

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• hide toolbar buttons in Chrome / Chromium

  - by romant

  Am a large keyboard user, and I've never hit back/forward/refresh or the favourite buttons on my browsers. Within safari, I can modify each of the buttons that appear. I wish in Chrome to only be able to see the address bar, and the page. Is this possible?

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• pasenger does not start puppet master under nginx

  - by Anadi Misra

  On the server [root@bangvmpllDA02 logs]# ruby -v ruby 1.8.7 (2011-06-30 patchlevel 352) [x86_64-linux] [root@bangvmpllDA02 logs]# puppet --version 3.0.1 and [root@bangvmpllDA02 logs]# service nginx configtest nginx: the configuration file /apps/nginx/nginx.conf syntax is ok nginx: configuration file /apps/nginx/nginx.conf test is successful [root@bangvmpllDA02 logs]# service nginx status nginx (pid 25923 25921 25920 25917 25908) is running... [root@bangvmpllDA02 logs]# however none of my agents are able to connect to the master, they all fail with errors like so [amisr1@blramisr195602 ~]$ puppet agent --test --verbose --server bangvmpllda02.XXX.com Info: Creating a new SSL certificate request for blramisr195602.XXX.com Info: Certificate Request fingerprint (SHA256): 26:EB:08:1F:82:32:E4:03:7A:64:8E:30:A3:99:93:26:E6:66:B9:B0:49:B6:08:F9:67:CA:1B:0C:00:B9:1D:41 Error: Could not request certificate: Error 405 on SERVER: <html> <head><title>405 Not Allowed</title></head> <body bgcolor="white"> <center><h1>405 Not Allowed</h1></center> <hr><center>nginx</center> </body> </html> Exiting; failed to retrieve certificate and waitforcert is disabled when I check logs on puppet master [root@bangvmpllDA02 logs]# tail puppet_access.log [05/Dec/2012:17:45:18 +0530] "GET /production/certificate/ca? HTTP/1.1" 404 162 "-" "Ruby" [05/Dec/2012:18:32:23 +0530] "PUT /production/certificate_request/sl63anadi.XXX.com HTTP/1.1" 405 166 "-" "-" [05/Dec/2012:18:33:33 +0530] "GET /production/certificate/sl63anadi.XXX.com? HTTP/1.1" 404 162 "-" "-" [05/Dec/2012:18:33:33 +0530] "GET /production/certificate_request/sl63anadi.XXX.com? HTTP/1.1" 404 162 "-" "-" [05/Dec/2012:18:33:33 +0530] "PUT /production/certificate_request/sl63anadi.XXX.com HTTP/1.1" 405 166 "-" "-" and the error logs show that nginx is not really able to process the request well 2012/12/05 18:33:33 [error] 25920#0: *23 open() "/etc/puppet/rack/public/production/certificate/sl63anadi.XXX.com" failed (2: No such file or directory), client: 10.209.47.26, server: , request: "GET /production/certificate/sl63anadi.XXX.com? HTTP/1.1", host: "bangvmpllda02.XXX.com:8140" 2012/12/05 18:33:33 [error] 25920#0: *24 open() "/etc/puppet/rack/public/production/certificate_request/sl63anadi.XXX.com" failed (2: No such file or directory), client: 10.209.47.26, server: , request: "GET /production/certificate_request/sl63anadi.XXX.com? HTTP/1.1", host: "bangvmpllda02.XXX.com:8140" 2012/12/05 18:47:56 [error] 25923#0: *27 open() "/etc/puppet/rack/public/production/certificate/ca" failed (2: No such file or directory), client: 10.209.47.31, server: , request: "GET /production/certificate/ca? HTTP/1.1", host: "bangvmpllda02.XXX.com:8140" 2012/12/05 18:47:56 [error] 25923#0: *28 open() "/etc/puppet/rack/public/production/certificate_request/blramisr195602.XXX.com" failed (2: No such file or directory), client: 10.209.47.31, server: , request: "GET /production/certificate_request/blramisr195602.XXX.com? HTTP/1.1", host: "bangvmpllda02.XXX.com:8140" Passenger does not show any application groups either [root@bangvmpllDA02 nginx]# passenger-status ----------- General information ----------- max = 15 count = 0 active = 0 inactive = 0 Waiting on global queue: 0 ----------- Application groups ----------- [root@bangvmpllDA02 nginx]# here's my nginx configuration [root@bangvmpllDA02 logs]# cat ../nginx.conf user puppet; worker_processes 4; #error_log logs/error.log; #error_log logs/error.log notice; error_log logs/error.log info; #pid logs/nginx.pid; events { use epoll; worker_connections 1024; } http { include mime.types; default_type application/octet-stream; log_format main '$remote_addr - $remote_user [$time_local] "$request" ' '$status $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; access_log logs/access.log main; sendfile on; #tcp_nopush on; server_tokens off; #keepalive_timeout 0; keepalive_timeout 120; gzip on; gzip_http_version 1.1; gzip_disable "msie6"; gzip_vary on; gzip_min_length 1100; gzip_buffers 64 8k; gzip_comp_level 3; gzip_proxied any; gzip_types text/plain text/css application/x-javascript text/xml application/xml; server { listen 80; server_name bangvmpllda02.XXXX.com; charset utf-8; #access_log logs/http.access.log main; location / { root html; index index.html index.htm index.php; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } # proxy the PHP scripts to Apache listening on 127.0.0.1:80 # #location ~ \.php$ { # proxy_pass http://127.0.0.1; #} # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000 # location ~ \.php$ { root html; fastcgi_pass unix:/var/run/php-fpm/php-fpm.sock; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; fastcgi_param SCRIPT_NAME $fastcgi_script_name; include fastcgi_params; } # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # location ~ /\.ht { access_log off; log_not_found off; deny all; } location ~* \.(jpg|jpeg|gif|png|css|js|ico|xml)$ { access_log off; log_not_found off; expires 2d; } } # Passenger needed for puppet passenger_root /usr/lib/ruby/gems/1.8/gems/passenger-3.0.18; passenger_ruby /usr/bin/ruby; passenger_max_pool_size 15; server { ssl on; listen 8140 default ssl; server_name bangvmpllda02.XXXX.com; passenger_enabled on; passenger_set_cgi_param HTTP_X_CLIENT_DN $ssl_client_s_dn; passenger_set_cgi_param HTTP_X_CLIENT_VERIFY $ssl_client_verify; passenger_min_instances 5; access_log logs/puppet_access.log; error_log logs/puppet_error.log; root /etc/puppet/rack/public; ssl_certificate /var/lib/puppet/ssl/certs/bangvmpllda02.XXX.com.pem; ssl_certificate_key /var/lib/puppet/ssl/private_keys/bangvmpllda02.XXX.com.pem; ssl_crl /var/lib/puppet/ssl/ca/ca_crl.pem; ssl_client_certificate /var/lib/puppet/ssl/certs/ca.pem; ssl_ciphers SSLv2:-LOW:-EXPORT:RC4+RSA; ssl_prefer_server_ciphers on; ssl_verify_client optional; ssl_verify_depth 1; ssl_session_cache shared:SSL:128m; ssl_session_timeout 5m; } } and the puppet.conf [main] # The Puppet log directory. # The default value is '$vardir/log'. logdir = /var/log/puppet # Where Puppet PID files are kept. # The default value is '$vardir/run'. rundir = /var/run/puppet dns_alt_names = devops.XXXX.com,devops confdir = /etc/puppet vardir = /var/lib/puppet storeconfigs = true storeconfigs_backend = puppetdb thin_storeconfigs = false async_storeconfigs = false ssl_client_header = SSL_CLIENT_S_D ssl_client_verify_header = SSL_CLIENT_VERIFY # Where SSL certificates are kept. # The default value is '$confdir/ssl'. ssldir = $vardir/ssl any ideas where am I going wrong? I checkthe directory permissions; /usr/share/puppet, /etc/puppet and /var/lib/puppet (and files inside them) are owned by puppet user.

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• variables used in inner queries

  - by wcpro

  im trying to build a query that has something like this select id, (select top 1 create_date from table2 where table1id = t1.id and status = 'success') [last_success_date], (select count(*) from table2 where table1id = t1.id and create_date > [last_success_date]) [failures_since_success] from table1 t1 as you can see the [last_Success_Date] is not within the scope of the second query, and i was wondering how i could access that value in other queries without having to rerun it?

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• extension shortcuts in chrome dont have text in them, windows 7

  - by bboyreason

  I have a few extensions next to my URL bar in chrome on windows 7. When I press any of them, or even the bookmark star, the text box that pops up is clear. I am using the following extensions: ablock plus, googleTranslate, firebugLite, ghostery, avastWebRep, Ultimate UserAgent switcher, Web developer toolbar, desprotetor de links, DNT plus, and WOT. I am set to block popups but not javascript in chrome and have a blackout theme installed. any ideas?

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• Quicktime Alternative player.

  - by Mario

  Hi, I'm using Quicktime Alternative and Chrome. The player bar looks very different (and better, I think) in IE. Is there a way to change the way it looks in Chrome? Thanks for any help.

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