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  • Unable to start tomcat6: Java error (Exception in thread "main")

    - by Nyxynyx
    After installing tomcat6 on CentOS 6.3, I am unable to start tomcat6 server. root@host [/var/log/tomcat6]# service tomcat6 start Starting tomcat6: [ OK ] Although it says OK, I cant access http://mydomain.com:8080. catalina.out Exception in thread "main" java.lang.NullPointerException at java.lang.VMClassLoader.defineClass(libgcj.so.10) at java.lang.ClassLoader.defineClass(libgcj.so.10) at java.security.SecureClassLoader.defineClass(libgcj.so.10) at java.net.URLClassLoader.findClass(libgcj.so.10) at gnu.gcj.runtime.SystemClassLoader.findClass(libgcj.so.10) at java.lang.ClassLoader.loadClass(libgcj.so.10) at java.lang.ClassLoader.loadClass(libgcj.so.10) at gnu.java.lang.MainThread.run(libgcj.so.10) Tomcat6 was installed using yum: yum -y install java tomcat6 tomcat6-webapps tomcat6-admin-webapps When I tried to find the version: tomcat6 version: Exception in thread "main" java.lang.NoClassDefFoundError: org.apache.catalina.util.ServerInfo at gnu.java.lang.MainThread.run(libgcj.so.10) Caused by: java.lang.ClassNotFoundException: org.apache.catalina.util.ServerInfo not found in gnu.gcj.runtime.SystemClassLoader{urls=[], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}} at java.net.URLClassLoader.findClass(libgcj.so.10) at gnu.gcj.runtime.SystemClassLoader.findClass(libgcj.so.10) at java.lang.ClassLoader.loadClass(libgcj.so.10) at java.lang.ClassLoader.loadClass(libgcj.so.10) at gnu.java.lang.MainThread.run(libgcj.so.10) Any idea what I should do? Thanks!

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  • IIS7 rejecting POST requests with 400 error.

    - by Eli
    I have a web application that is supposed to handle post requests from SAP. This has been working fine at other customers with win2k3 systems (IIS6) and win2k8 (IIS7) systems. However, on this specific customer's site, IIS responds with a 400 response, without calling my aspx page. In fact, I don't even see it appear in the w3c log for the virtual directory. I do see the request using Network Monitor, so I know no firewalls and the like are eating the request, and as far as I can tell, all of the fields of the request are valid (there is "content-length", it looks correct (this is a sending of a 28K tiff file - which isn't MIME encoded, curiously enough now that I think of it...) Ideas?

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  • HP LaserJet 2550 has a carousel motor error

    - by Arlen Beiler
    I have a LaserJet 2550, and it's worked pretty good for a long time (except for some slowness a while back, spooling I think), but just recently it suddenly quit working. We moved this summer, but left it at our other place, and just recently when my Dad went over there to try to print something out, it didn't work. When you turn it on, you hear the fan give a false start (basically a quick pulse), and the carousel goes through its usual thing. Then it starts up in earnest like it's getting ready to print something. All of a sudden it just stops. Everything stops, and the three lower lights are steady. When I push the Go button, the Go light (bottom of the 3) turns off, but the other two stay on. I looked it up on the HP website and it says it is a carousel motor problem. I called HP, but they said it is out of warranty. I've opened the cover and held the switch with a screw driver so I could watch it, and it goes through its thing like I described (doesn't seem to make a difference whether the imaging drum is in or not), then when it stops it kind of seems to jump back a little bit (the carousel). I hope this all makes sense (I know you like details), and hopefully you also know what to do to fix it. Thanks.

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  • Hostname error on my Slicehost Ubuntu server

    - by allesklar
    Like many folks who upgraded to Rails 2.2, I got an exception raised when sending an email. This version of Rails or later does require using tls for sending emails. The message in the production log file says: hostname was not match with the server certificate I did a whole lot of research and work on this and did everything I could. I changed my slice's hostname to ohlalaweb.com. If I run the command 'hostname' at the CL I get: ohlalaweb.com Postfix seems to work fine. I can send emails from the CL to my gmail, yahoo, and google apps gmail accounts with no problems. Here is the result of cat /etc/postfix/main.cf # See /usr/share/postfix/main.cf.dist for a commented, more complete version # Debian specific: Specifying a file name will cause the first # line of that file to be used as the name. The Debian default # is /etc/mailname. myorigin = /etc/mailname smmtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no # appending .domain is the MUA's job. append_dot_mydomain = no # Uncomment the next line to generate "delayed mail" warnings #delay_warning_time = 4h readme_directory = no # TLS parameters smtpd_tls_cert_file=/etc/ssl/certs/ohlalaweb.pem smtpd_tls_key_file=/etc/ssl/certs/ohlalaweb.pem smtpd_use_tls=yes # SA created next line to force postfix to use self create certificate smtpd_tls_auth_only=yes smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache # See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for # information on enabling SSL in the smtp client. myhostname = ohlalaweb.com alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases mydestination = localhost.localdomain, localhost relayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mailbox_size_limit = 0 recipient_delimiter = + inet_interfaces = all I have regenerated the ssl keys with the ohlalaweb.com host name. Any ideas or suggestions?

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  • "Address already in use" error from socket bind, when ports are not being used

    - by Ivan Novick
    I can not bind (using C or python sockets) to any port in the range: 59969-60000 Using lsof, netstat and fuser I do not see any processes using these ports. Other ports such as 59900-59968 and 60001-60009 I can bind to them. My OS: is CentOS release 5.5 (Final) 2.6.18-194.3.1.el5 There must be something missing? Anyone have any idea how to debug why this port range is not usable? Cheers, Ivan

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  • How to soft code an MKV with subtitles?

    - by GiH
    I have an avi and corresponding .srt file for subtitles. I hate having two files for this movie, so what I want to do is convert this file to mkv as I heard it can hold subtitles. I have handbrake to convert the file, but will that allow me to include the subtitles? If not, how would I go about putting the subtitles into the mkv?

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  • Installing Win8 from ISO image error

    - by eco_bach
    I installed a new SSD in my PC laptop which came with an OEM version of Windows 8. After trying unsuccesfully to get the OEM version of Windows onto the SSD drive I gave up and purchased and downloaded a NEW copy of Windows 8. After that I created an ISO image on my desktop machine and followed the instructions here to create a bootable USB flash drive. However, after going through the boot install process with the USB flash drive on my laptop I get the following message 'The product key entered does not match any of the Windows images available for installation. Enter a different product key.' But I wasn't asked to enter any key! Is this because the ISO image was created on a different machine? I really don't get why this should be so difficult.

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  • Nginx error page with JSON response

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

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  • Static error page served by nginx when my application is down

    - by dreeves
    If my (Rails) application is down or undergoing database maintenance or whatever, I'd like to specify at the nginx level to server a static page. So every URL like http://example.com/* should server a static html file, like /var/www/example/foo.html. Trying to specify that in my nginx config is giving me fits and infinite loops and whatnot. I'm trying things like location / { root /var/www/example; index foo.html; rewrite ^/.+$ foo.html; } How would you get every URL on your domain to serve a single static file?

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  • SQLVDI error - attempt to release mutex not owned by caller

    - by Chris W
    I've started getting some errors in the App event log of one of our database servers (Windows 2003 & SQL Server 2005). The nightly full database backups are completing successfully however immediately after the job success is written to the event log there is a run of entries that say: SQLVDI: Loc=CVDS. Desc=Release(ClientAliveMutex). ErrorCode=(288)Attempt to release mutex not owned by caller. There's five of these logged - the server itself has more than 20 databases on it which are all backed up successfully. The server is backed up by Bacula using a VSS backup. Has anyone got any ideas what would be causing the errors? They seem to have started after a re-boot on Friday to install some patches which included KB960089. Edit: After getting the errors for a few days they've now stopped without any action on my part other than letting the backups continue as they were. It may be a coincidence but they stopped after Bacula completed its weekly full rather than the daily incremental backup.

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  • BackTrack5 R2 video driver works, but presents disturbing error message

    - by poz2k4444
    I've installed backtrack 5 R2 on my computer and everything works fine but the video driver. The solution described here does work, but whenever I start the graphics mode, a message saying that the graphics card doesn't support the configuration that is loaded. I don't know why this is happening. It doesn't change the performance of my computer, but I'd like to know why the message is arising, and what I can do to stop it. Alternatively, where can I find the configuration file that would help me understand what's going on?

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  • Dovecot, IMAP outlook reports error 0x800CCC0E cannot synchronize subscribed folders

    - by l1em1on1
    I have recently some issues with people using my email server. They have problems with synchronizing folders on outlook, and I can't figure out what to do. I found somewhere that I could extend a setting for imap connections: mail_max_userip_connections = 20 which didn't really help, I was thinking about extending timeout of connection or something, but really can find anything like that. In Thunderbird it seems to be OK. here is dovecot -p result: http://snipt.org/AAig5 if anything could help please let me know what should provide.

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  • Changing IP address in IIS for SharePoint site results in Directory listing error

    - by Dan
    I have a server here that has 2 roles. One is Exchange 2007 and the other is MOSS 2007. In IIS i have a site, go.domain.com which has our OWA. The other is internal.domain.com which is the MOSS site. I have given the NIC local IPs and each site is using host headers. The GO site has an SSL cert from NetSol, and the MOSS site has a self signed. Right now going to either shows the NetSol site, which browsers complain about when going to the internal.domain.com site, obviously, since they are on the same IP in IIS. Both sites have always run off the original IP of 10.0.0.3 in IIS. When i added the second IP to the NIC, (10.0.0.6) and changed the Sharepoint site in IIS to use this for http and https access, I now get this message in a browser when trying to connect. Directory Listing Denied This Virtual Directory does not allow contents to be listed. Changing the IP back to 10.0.0.3 and the internal site is back up. What am I missing here? Do i need to fool around with Alternate Access Mappings in Central Admin? Am i completely missing the point with multiple SSL certs and host headers?

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  • Munin Aggregated Graphs Configuration Error

    - by Sparsh Gupta
    I tried making some Munin Aggregated graphs but somehow I am unable to make the configuration work. I think I have followed the instructions but since its not working, I would love some assistance or guidance as to what I am doing wrong. I want to Aggregate (sum) the total number of requests / second all my nginx servers are doing combined together. The configuration looks like [TRAFFIC.AGGREGATED] update no requests.graph_title nGinx requests requests.graph_vlabel nGinx requests per second requests.draw LINE2 requests.graph_args --base 1000 requests.graph_category nginx requests.label req/sec requests.type DERIVE requests.min 0 requests.graph_order output requests.output.sum \ lb1.visualwebsiteoptimizer.com:nginx_request_lb1.visualwebsiteoptimizer.com_request.request \ lb3.visualwebsiteoptimizer.com:nginx_request_lb2.visualwebsiteoptimizer.com_request.request \ lb3.visualwebsiteoptimizer.com:nginx_request_lb3.visualwebsiteoptimizer.com_request.request The munin graph I want to aggregate is http://exchange.munin-monitoring.org/plugins/nginx_request/details Thanks Sparsh Gupta

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  • NGINX : Proxy pass intercepting 5xx errors - Possible to differentiate between ones fired by backed vs ones fired by nginx itself?

    - by anonymous-one
    We use proxy_intercept_errors ( http://wiki.nginx.org/HttpProxyModule#proxy_intercept_errors ) with our backends. We intercept a number of status codes, including a few 5xx ones. Our 5xx (each 500 has its own) handler has an access_log so we can see all the 5xx errors returned to the user in a nice clean logged format. The issue with this is that as it stands now, we cannot tell weather a 5xx was returned to the user by nginx or intercepted from our backend. Is there any way to differentiate between the two? Thanks.

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  • Python coding with VLC player (quite a basic query I expect)

    - by Todd
    I'm fairly new to the whole coding realm so my knowledge is fairly limited, and I can't seem to find any basic tutorials on how to use scripts with VLC player. More specifically, the reason I'm asking here is because I stumbled across a post on this site about playing random clips from random videos on VLC player automatically. This is the forum post: Playback random section from multiple videos changing every 5 minutes My situation is similar to this lovely gentleman's was, though he clearly knows a lot more about coding than I do. In short, I'd like to copy this coding into a file of some sort and apply it to VLC player myself. Only I'm not sure what file type I'd have to save it as (I have Python by the way, and I tried saving it as a .py file but I didn't know if it was correct or where to go from there). Additionally, I'm not sure how to get VLC to "read" the script, so to speak - is there a specific location the file needs to be, and do I run the script from another program or through VLC? I'll reiterate that I'm relatively new to this, so if anybody would be so kind as to post a quick list of steps on how to save/place the file and use it with VLC player I really would appreciate it! P.S. I'm not computer illiterate, I'm fine with most programs and I'd understand if you just said things like "C:\Program Files (x86)\VideoLAN\VLC\plugins" or "in VLC, select Tools Plugins and extensions", I just wouldn't catch on to anything about adding a line of coding that does something without being told exactly what to write! Many thanks in advance! :) Todd

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  • Windows 2003 Dynamic Disk error

    - by ChrisH
    Hi, I was trying to ghost a partition on a Windows 2003 server, using Ghost 2003. Unfortunately things went horribly wrong, and now I can't boot back into my system. As you can see, Ghost creates a wee little partition to do its dirty work, and has dislodged my other partitions. Partition 2 in the image below is my C drive. Any suggestions as to how I might get this active again so that it boots? Cheers, Chris

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  • securing source code with bitlocker

    - by Daniel Powell
    We need to deploy a web based application at a client site where it will be within their local intranet. Part of our requirement is to provide some basic security to protect our IP. I realise that nothings a 100% guaranteed fix but we are just looking to make it a bit harder for most people. The server will be running server 2008 and I was considering using bitlocker as a cheap and nasty way to protect it. From what I understand assuming the mobo supports it we can use the Transparent bitlocker mode and this means that moving the hdd to another pc will mean the hdd will be unreadable in that machine baring some sort of cold boot attack to steal the encryption keys. Is this assumption correct and in the case that the motherboard or any other component fails in the pc and we need to replace it do we lose access to our data or is there a way to unencrypt it (obviously accessible to only our company) EDIT: we do have legal documents that cover this and we will be locking the pc physically and the client will not have access to the pc (windows login) other than via the website we host on it

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  • Error adding 4tb LUN (Raw Device Mapping) to ESX4 VM

    - by Tom Gardiner
    Hi guys, I'm trying to map an existing 4tb LUN from a Fibre Channel SAN, through to a VM in my ESX4 environment. It keeps telling me that the VMDK file size exceeds the the maximum size supported by the datastore. I've tried in Physical compatibility mode, and also both Virtual styles. I'm a little confused by this as we had the same LUN mapped through to another VM when we were running ESX3.5... I've also noticed that some of my other RAW mappings are generating extremely large VMDK files on the ESX servers. Does anyone know if this change in behaviour is intentional? And if so why? It doesn't seem to me that if the LUN is mapped directly to the VM that it's size should be relevant. We're running 4.0.0 build 236512, and 4.0.0 build 219382 and I've not had any success on either. Any insight or advice would be much appreciated! TG

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  • vmware vcenter 5.1 installation with FQDN error

    - by CSG
    I'm trying to install vCenter 5.1 on a windows 2012 dedicated (with SQL express standalone) During the installation of the Single Sign On module i've a warning "the fully qualified domain name cannot be resolved with nslookup. if you continue the installation some features might not work correctly. for detailed requiments see the installation and setup guide" The only indication that i've found are about the reverse zone dns resolution.. and this works! i've verified that the dns works properly with nslookup C:\Users\admin>nslookup srv6.mydomain.local Server: srv2.mydomain.local Address: 172.25.4.22 Nome: srv6.mydomain.local Address: 172.25.1.26 C:\Users\admin>nslookup 172.25.1.26 Server: srv2.mydomain.local Address: 172.25.4.22 Nome: srv6.mydomain.local Address: 172.25.1.26 (all ip are right: I've the vCenter=srv6 and DC+DNS=srv2 on different vlan) i've tryed to force the resolution of the ip changing the [..]\drivers\etc\hosts file i've disabled the IPv6 support i've used all combination with domain prefixes (explicit, by dhcp, undefined..) i've disabled all antivirus/firewall (kaspersky end point 10) is this a bug of vcenter 5.1.0-1065152 ? have you got any suggestions for me?

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  • Error removing packages in Ubuntu using Synaptic

    - by ronakin
    I'm using Ubuntu 10.04 and during my tries to free space I've removed several packages such as: openoffice, all editors, and some more packages such as players and printers drivers that I don't need and seem o.k to remove. However, after restart, the graphical interface doesn't load, I'm in the xserver, I have console but not gui. I was wondering if anyone can tell me which packages I should not remove or let me know of dependencies I need to consider when messing with packages? Thanks!

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