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• pam debugging "check pass; user unknown"

  - by lvc

  I am attempting to get Prosody authenticating with its auth_pam module. It is configured to use the pam service name xmpp. The pam.d/xmpp file is copied straight from the one configured for dovecot (originally taken from, I think, dovecot's documentation), which is known to be working: # cat /etc/pam.d/xmpp auth required pam_unix.so nullok debug account required pam_unix.so debug Logging in with dovecot works wonderfully. Logging in with prosody, with exactly the same username and password, causes Prosody to return 'Not authorized', and the following in journalctl -f: Oct 29 22:12:14 riscque.net prosody[9396]: c2s1d010b0: Client sent opening <stream:stream> to riscque.net Oct 29 22:12:14 riscque.net prosody[9396]: c2s1d010b0: Sent reply <stream:stream> to client Oct 29 22:12:14 riscque.net prosody[9396]: [178B blob data] Oct 29 22:12:14 riscque.net unix_chkpwd[9408]: check pass; user unknown Oct 29 22:12:14 riscque.net prosody[9396]: pam_unix(xmpp:auth): conversation failed Oct 29 22:12:14 riscque.net prosody[9396]: pam_unix(xmpp:auth): unable to obtain a password Oct 29 22:12:14 riscque.net prosody[9396]: pam_unix(xmpp:auth): auth could not identify password for [lvc] Oct 29 22:12:14 riscque.net prosody[9396]: riscque.net:saslauth: sasl reply: <failure xmlns='urn:ietf:params:xml:ns:xmpp-sasl'><not-authorized/><text>Unable to authorize you with the authentication credentials you&apos;ve sent.</text></failure> This series of errors seems mutually contradictory - first it says "user unknown", but then that it can't obtain the password for lvc - this username certainly exists on the system. What is likely going on here, and how would I debug this further?

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• where can I find the user in this IIS error 'Login failed for user 'IIS APPOOL\Web2'

  - by Jack

  I encounter the following error: Cannot open database "testbase" requested by the login. The login failed. Login failed for user 'IIS APPPOOL\Web2'. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Cannot open database "testbase" requested by the login. The login failed. Login failed for user 'IIS APPPOOL\Web2'. So, where can I give this user Web2 permission? (By the way, the server do not have such user Web2 but there is a folder called Web2 located at the wwwroot folder.) I search for answers but all failed as follows: [1] Add the user IUSR to the folder and give it read permission. [2] http://www.codekicks.com/2008/11/cannot-open-database-northwind.html [3] http://blog.sqlauthority.com/2009/08/20/sql-server-fix-error-cannot-open-database-requested-by-the-login-the-login-failed-login-failed-for-user-nt-authoritynetwork-service/

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• Favorite tricks with linux kernel boot parameters?

  - by ~drpaulbrewer

  Most linux bootloaders let you edit the kernel boot command line before booting. There are often lots of parameters available -- Knoppix, for instance, has a list on their Knoppix Cheat Codes page -- but most are applicable only to compatibility and special situations. A few are hidden gems. Common usages of these codes are to boot to single-user mode, alter screen mode or drivers, or to specify an alternative root directory. Other more exotic uses are possible. Some linux distributions let you copy the boot cd into ram. Others (e.g., Ubuntu) let you use preseed files to clone installs when setting up multiple systems -- useful when installing a lab full of computers without having to baby sit each install. What other tricks have you found useful in system installs, repairs, backups, restores, establishing temporary servers, or other tasks? To add your favorite trick to the list: As much of the code for these options goes on either in initrd, or in a service handler that detects the kernel parameters, please list *(1) the kernel boot line parameter, (2) what it does, (3) the linux distribution and any required packages to activate the feature*. Thanks.

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• Whitelist IP from google-authenticator in sshd pam

  - by spudwaffle

  My Ubuntu 12.04 server uses the google-authenticator pam module to provide two step authentication for ssh. I need to make it so that a certain IP does not need to type the verification code. The /etc/pam.d/sshd file is below: # PAM configuration for the Secure Shell service # Read environment variables from /etc/environment and # /etc/security/pam_env.conf. auth required pam_env.so # [1] # In Debian 4.0 (etch), locale-related environment variables were moved to # /etc/default/locale, so read that as well. auth required pam_env.so envfile=/etc/default/locale # Standard Un*x authentication. @include common-auth # Disallow non-root logins when /etc/nologin exists. account required pam_nologin.so # Uncomment and edit /etc/security/access.conf if you need to set complex # access limits that are hard to express in sshd_config. # account required pam_access.so # Standard Un*x authorization. @include common-account # Standard Un*x session setup and teardown. @include common-session # Print the message of the day upon successful login. session optional pam_motd.so # [1] # Print the status of the user's mailbox upon successful login. session optional pam_mail.so standard noenv # [1] # Set up user limits from /etc/security/limits.conf. session required pam_limits.so # Set up SELinux capabilities (need modified pam) # session required pam_selinux.so multiple # Standard Un*x password updating. @include common-password auth required pam_google_authenticator.so I've already tried adding a auth sufficient pam_exec.so /etc/pam.d/ip.sh line above the google-authenticator line, but I can't understand how to check an IP adress in the bash script.

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• Unknown Apache2 + PHP5 FastCGI 500 error .. caused by search engine bots?

  - by rdjurovich

  My Ubuntu server is configured with Apache 2.2.8 and PHP 5.2.4-2ubuntu5.18 in FastCGI mode. Everything works well, except I am seeing 500 errors that only seem to come from bots accessing the server.. for example (access.log): x.125.71.104 - - [16/Nov/2011:10:27:39 +1100] "GET / HTTP/1.1" 500 41377 "-" "Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)" x.40.103.239 - - [16/Nov/2011:11:05:56 +1100] "GET / HTTP/1.0" 500 14717 "-" "Mozilla/5.0 (compatible; mon.itor.us - free monitoring service; http://mon.itor.us)" x.249.67.114 - - [14/Nov/2011:20:57:17 +1100] "GET / HTTP/1.1" 500 101 "-" "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)" x.55.39.85 - - [14/Nov/2011:19:31:06 +1100] "GET / HTTP/1.1" 500 7032 "-" "msnbot/2.0b (+http://search.msn.com/msnbot.htm)._" It is my understanding that a 500 error will be thrown when the PHP process fails to respond to Apache, which could be caused by a fatal PHP error or if PHP runs out of processes.. so my assumption is that either the bots are hitting the server too hard, killing the PHP processes, or something in the request header from bots is causing a fatal error in my PHP script? If anyone can offer advice on this it would be greatly appreciated! Ryan

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• How to collect the performance data of a server during an unreachable/down period using Nagios?

  - by gsc-frank

  Some time services and host stop responding due to a poor server performance. I mean, if for some reason (could be lot of concurrency services access, a expensive backup execution on the server or whatever that consume tons of server resources) a server performance is very degraded, that could lead that the server isn't capable to establish any "normal network communication" (without trigger whatever standards timeouts defined for such communication). Knowing host's performance data (cpu, memory, ...) in case of available during that period (host is not down and despite of its performance degradation still allow plugins collect performance data) could be very useful for sysadmin to try to determine what cause the problem, or at least, if the host performance was good and don't interfered at all in the host/service down. This problem could be solved using remote active (NRPE) or remote passive (NSCA) if such remote solutions could store (buffered) perf data to be send to central Nagios server when host performance or network outage allow it. I read the doc of both solutions and can't find any reference to such buffer mechanism neither what happened in case that NSCA can't reach Nagios server. Any idea of how solve this lack of info? so useful for forensic analysis. EDIT: My questions isn about which tools I can use to debug perf problems or gather perf data to analysis, but is about how collect (using Nagios) host perf data even during a network outage for its posterior analysis (kind of forensic analysis). The idea is integrate such data to Nagios graphers like pnp4nagios and NagiosGrapther. I know that I could install tools like Cacti in each of my host, and have a kind of performance data collection redundancy, but I really want avoid that and try to solve all perf analysis requirements with one tools: Nagios

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• Setting up AJP with JBoss 7

  - by purlogic

  I have two different versions of JBoss on a server, JBoss 6.0 Final and JBoss 7.0.2. I can one run or the other by switching a couple of sym links and issuing a "service jboss start" command. I am, by no means, an expert in JBoss, however JBoss 6.0 appears to have AJP running out of the box with no initial configuration required on port 8009. With JBoss 7, however, I had to vi the file "standalone/configuration/standalone.xml" and add a few entries. Those entries are: In the <subsystem /> tag, I added: <connector name="ajp" protocol="AJP/1.3" socket-binding="ajp" /> In the <socket-binding-group /> tag I added: <socket-binding name="ajp" port="8009"/> Then in Apache's configuration file (httpd.conf), I added: <Proxy *> AddDefaultCharset Off Order deny,allow Allow from all </Proxy> ProxyPass /app ajp://localhost:8009/app ProxyPassReverse /app ajp://localhost:8009/app AJP proxying works with 6, not with 7... I assume it's because I haven't properly set up AJP in JBoss 7 and not entirely sure how to do that. I have searched documentation on their site with not a lot of specifics on how to do so. Any help or insight into setting up AJP with JBoss 7 would be much appreciated!!

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• Does WebDAV even work on IIS 7? I say nay

  - by FlavorScape

  I've tried every configuration from the top 10 stack overflow and server fault results for WebDAV 405 on IIS (for verb PROPFIND and PUT). I'm running server 2008 SP2. Followed all the instructions here. I'm no stranger to configuring servers. This has gotten nowhere after 8 hours. Confirmed system.webserver in applicationhost.config: <add name="WebDAV" path="*" verb="PROPFIND,PROPPATCH,MKCOL,PUT,COPY,DELETE,MOVE,LOCK,UNLOCK" modules="WebDAVModule" resourceType="Unspecified" requireAccess="None" /> Port 443 with basic auth, same issue. Tried port 80 with windows auth. Broken. (405) Windows authentication. Check. Added authoring rules for default site and application. Check. Not the firewall. Check. added "Desktop Experience" role feature Tried HTTPS with Basic Authentication on port 443. Does not work. No other services are running like Sharepoint. Check. confirmed user has read/write NT level permissions for the folder/virtual dir tried net use * http://localhost /user:MYDOMAIN\me myPass get error 1920, if I don't authenticate I get error 67 confirmed I'm not applying filtering to WebDAV: <requestFiltering> <fileExtensions applyToWebDAV="false" /> <verbs applyToWebDAV="false" /> <hiddenSegments applyToWebDAV="false" /> 405 - HTTP verb used to access this page is not allowed. The page you are looking for cannot be displayed because an invalid method (HTTP verb) was used to attempt access. SHOULD I JUST GIVE UP? Other questions that helped none: 405 - ‘Method not Allowed’ adding service hosted in IIS7 webdav on iis7.5 - simply cannot make it work http://studentguru.gr/b/kingherc/archive/2009/11/21/webdav-for-iis-7-on-windows-server-2008-r2.aspx

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• Rsync Push files from linux to windoes. ssh issue - connection refused

  - by piyush c

  For some reason I want to run a script to move files from Linux machine to Windows. I have installed cwRsync on my windows machine and able to connect to linux machine. When i execute following command: rsync -e "ssh -l "piyush"" -Wgovz --timeout 120 --delay-updates --remove-sent-files /usr/local/src/piyush/sync/* "[email protected]:/cygdrive/d/temp" Where 10.0.0.60 is my widows machine and I am running above command on Linux - CentOS 5.5. After running command I get following error message: ssh: connect to host 10.0.0.60 port 22: Connection refused rsync: connection unexpectedly closed (0 bytes received so far) [sender] rsync error: error in rsync protocol data stream (code 12) at io.c(463) [sender=2.6.8] [root@localhost sync]# ssh [email protected] ssh: connect to host 10.0.0.60 port 22: Connection refused I have modified my firewall settings on widows to allow all ports. I think this issue is due to SSH Daemon not present on my windows machine. So I tried installing OpenSSH on my machine and running ssh-agent but didn't helped. I tried similar command to run on my widows machine to pull files from Linux and its working fine. For some reason I want command for Linux machine so that I can embed it in a shell script. Can you suggest me if I am missing anything. I am already having cwRsync installed on my widows and running it in daemon mode using --damemon option. And I am able to login using ssh from windows machine to linux machine. When I issue bellow command, it just blocks for 120 seconds (timeout I specified in command) and exits saying there is timeout. rsync -e "ssh -l piyush" -Wgovz --timeout 120 --delay-updates --remove-sent-files /usr/local/src/piyush/sync/* "[email protected]:/cygdrive/d/temp" After starting rsync on widows, I checked, rsyc is running. And widows firewall setting are set to minimal, and on Linux machine stopped iptables service so that port 873 (default rsync port) is not blocked. What can be the possible reason that Linux machine is not able to connect to rsync-daemon on windows machine?

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• Browsers hang when loading web pages

  - by avalanchis

  HP Laptop with Windows Vista Home Premium, Service Pack 2. Problem affects IE8 and Firefox. When attempting to browse most web sites, browser loads web site title in browser's title bar, then displays "Waiting for site url" and never completes loading the page. Able to connect to www.google.com with no problems. Unable to connect to www.carbonwy.com, www.wsj.com, www.cnn.com, www.microsoft.com, etc. Other PCs on same subnet are all able to connect to these sites without any problem. nslookup resolves all of these sites without any problem, so DNS does not appear to be the problem. Windows Firewall is disabled. Norton 360 was previously installed but has been uninstalled. No other firewall software is installed. IE8 Protected Mode is off. IE8 advanced settings have been reset. IE8 user settings have been reset. After reset, IE8 tries to connect to http://hp-laptop.aol.com and go.microsoft.com but same symptoms persist. Title bar loads, then nothing. System has been restarted numerous times. Running out of ideas. Please help!

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• How do I keep folders synced and backed up between two macs using a Linux NAS (rsync?)

  - by Hultner

  I've got two primary computers, one Mac Pro and one MacBook Pro for when I'm on the go. I've also got a Linux sever which also acts as NAS. Currently I backup the entire computers to an external drive with Time Machine which is rather useless and doesn't sync anything. What I really want to do is to keep my important files synced between both computers and my NAS (which is running RAID 5), that way I'm not backing up easily replaceable systemfiles and I've got all my important files in 3 places where two of them are running raid so at least 5 drives would have to crash at the same time before actual data loss occur. Folders I want to keep synced is basically my photo, documents, development, mamp and work folders and then I want to keep the user library folder backed up but not synced. I'm thinking that I'd have to use rsync but don't know how. Before suggesting Dropbox and similar suggestions I don't want to use them because of several reasons some of them being security (Dropbox obviously proved this), Speed (sometimes I'll sync gigabytes of data and that will be significantly faster locally and probably even through VPN as I have a Gigabit pipe), Space (space on my NAS is cheap and only practically limited by my needs), reliability (even if my internet were to go down I still need to be able to keep my files synced incase I'd need to go somewhere on the fly), price (I already have all the hardware and for the amount of gigabytes and bandwidth I'd need I doubt that there's any free or cheap service). Those are my main reason for wanting to keep it locally. I'm sorry for any spelling or grammatical mistakes that I've might have done. I'm writing this on my smartphone from a shaky train and English isn't my mother tongue. I gratefully appreciate any answers even if only partly solving my problem.

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• Apache Derby running within Tomcat causes shutdown issues

  - by Luke

  I have set up Derby Network Server to be hosted within a Tomcat environment. This works great. However, when I shut down Tomcat I get the following errors: 04/01/2011 10:41:41 AM org.apache.catalina.core.StandardService stop INFO: Stopping service Catalina 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web application [/derby] registered the JBDC driver [org.apache.derby.jdbc.ClientDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc SEVERE: The web application [/derby] registered the JBDC driver [org.apache.derby.jdbc.AutoloadedDriver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [derby.NetworkServerStarter] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [NetworkServerThread_4] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [DRDAConnThread_5] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.catalina.loader.WebappClassLoader clearReferencesThreads SEVERE: The web application [/derby] appears to have started a thread named [DRDAConnThread_13] but has failed to stop it. This is very likely to create a memory leak. 04/01/2011 10:41:41 AM org.apache.coyote.http11.Http11Protocol destroy INFO: Stopping Coyote HTTP/1.1 on http-8080 I'm currently starting and stopping Tomcat with the following commands: ./catalina run ./catalina stop Is there a better way to shutdown Tomcat with Derby or can this be solved by a configuration change?

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• Finding a backup and synchronization solution

  - by Andrea Zilio

  I'm having difficulties to find a backup and synchronization solution with the following characteristics: Cross-platform: Windows, Linux, Mac Offsite backup (so Internet Backup) Data deduplication Transfer only new/modified bits of modified files Secure: Data encrypted before leaving computer Maintain multiple versions of files (even deleted files) Folder synchronization integrated with backup and across multiple computers connected to the internet (not necessarily in the same LAN) I think that the Folder Sync feature needs a better explanation. The use case is this: you have a desktop pc and a laptop. The desktop pc contains a folder with some files and this folder is part of the backup (so it was selected to be backed up). The laptop does not contain that folder or that files at all. Then you're abroad with your laptop and you need that folder. So you want to be able to open the backup program, select that folder from the backup and download it in your laptop mantaining it synchronized with the backed up version. When you then come back home and switch on your desktop pc you want the folder we're talking about to be updated in the desktop PC. Does anyone knows any service with all these features? I've only found SpiderOak to support all the features I've mentioned but I'm not completely satisfied by the time taken to complete a backup. Sometimes it seems to hang for minutes with no reasons at all and folder synchronization occurs only after all files are backed up (instead folder sync should have a separated queue independent from other backup operations and synchronization should occurs frequently... for example every 5 minutes or less, independently from the frequency of normal backup operations)

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• Is there a reason to use internal DNS over 8.8.8.8 ?

  - by skylarking

  I've inherited a LAN where there is really no name resolution being done for local resources... i.e. all users enter IP addresses manually to access printers and network shares. There are no LDAP servers or domains either....workstations simply connect to the network without authentication. DHCP is handled via a core switch... And DNS settings are also handed out by this same core switch. Currently, the DNS assignments are as such, and in this order: 10.1.1.50 / old Pentium III Windows 2003 box running DNS service- 128 MB RAM 169.200.x.x / ISP 4.2.2.2. / the well known public one There a couple thousand clients on the LAN....and most of the activity is web browsing ( this is an educational setting ). First of all, the server seems woefully underpowered for this task...yet there is virtually no slowness when web surfing by clients.... How much horsepower should a heavily used DNS server have ? I have also heard using 4.2.2.2 is a bad idea .... since it has been so overused... Finally, wouldn't it make sense to have a robust external DNS server listed first? ( Google's 8.8.8.8 would seem to be a logical candidate )

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• DNS configuration issues. Clients inside network unable to resolve DNS server's name

  - by hydroparadise

  Setup the DNS service on Ubuntu 12.04 64 and all apears to be well except that my dhcp clients do not recognize my DNS servers hostname. When doing a nslookup on one of my Windows clients, I get C:\Users\chad>nslookup Default Server: UnKnown Address: 192.168.1.2 Where I would expect the FQDN in the spot where UnKnown is seen. The DNS server know's itself pretty well, but I think only because I have an entry in the /etc/hosts file to resolve. There's so many places to look I don't even know where to begin. Are there any logs I can look at? Something. Places I've looked at and configured: /etc/bind/zones/domain.com.db /etc/bind/zones/rev.1.168.192.in-addr.arpa /etc/bind/named.conf.local EDIT: '/etc/bind/zones/rev.1.168.192.in-addr.arpa' @ IN SOA dns-serv1.mydomain.com [email protected]. ( 2006081401; 28800; 604800; 604800; 86400 ) IN NS dns-serv1.mydomain.com. 2 IN PTR dns-serv1 2 IN PTR mydomain.com EDIT 2: '/etc/bind/named.conf.local' zone "mydomain.com" { type master; file "/etc/bind/zones/mydomain.com.db"; }; zone "1.168.192.in-addr.arpa" { type master; file "/etc/bind/zones/rev.0.168.192.in-addr.arpa"; };

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• Emails from web site sometimes blank or gibberish

  - by John Gardeniers

  Our company has one web site with an online store based on osCommerce. The system sends emails for various reasons, such as password changes, order confirmations, etc., using PHP's mail() function. We occasionally have customers report that the email they received is either blank (email is plain text format) or gibberish (email is in HTML format). In the latter case it's really just HTML that's being displayed as raw text but of course the customers can't read it. In this case the first opening tag's <, and sometimes a few more characters, has gone missing. In an attempt to determine whether this was happening only for certain customers or email systems I configured the web site to send a CC of each message to a service account at my end. Those CC'd messages always arrive intact and display correctly in Outlook. For what it's worth, it seems to happen a little more frequently to Hotmail users but is certainly not limited to them. As the web site is on a shared (Debian) host there's precious little I can do about debugging things from that end, although if I made the right request I feel the hosting company staff would help me, even though they have limited resources to spend on such matters. Any suggestions on what else I might do to try and determine just why those emails are not being received correctly by some customers, yet a CC copy arrives just fine?

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• Windows 2008 R2 remote desktop - Double Login

  - by Zulgrib

  After an Active Directory fail RDP connection started to ask for credentials twice (once on local RDP program, second time on remote's logon screen) I already looked at Windows 2008 R2 RDS - Double Login Solution provided there doesn't work for me. The server is alone, without AD/DNS services, RDP service isn't installed I tried every security settings on RDP-Tcp (RDP, Negotiate, SLL) Logon option is set to "Use credentials from the client" Both windows client and server use RDP 7.1 fPromptForPassword regitries are set to 0 Local Computer Policy\Administrative Templates\Windows Components\Remote Desktop Services\Remote Desktop Session Host\Security\Always prompt for password upon connection is set to "Disabled" Why i am sure the problem comes from the server and not the client ? This problem affected a 3rd RDP program on Android too (it was directly showing "preparing desktop previously, on both MS RDP and the 3rd program) No bakcup are available (Else the Active Directory wouldn't be a fail, but just a lose of time) I am wondering if a rule linked to RDP got changed after the AD install+unistall, but i'm unable to find where. While this is not a critic problem, this is very annoying. I don't know if more information are needed, if it's the case and if you are patient enough, please tell me what is missing and i'll edit this post to add the missing informations.

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• Lost partition after restarting

  - by nxhoaf

  I have Window 7 Professional Service pack installed in my Laptop Lenovo Thinkpad t420. After formatting the disk, and install Window 7 (detailed as above), I went to Computer -- Manager -- Storage -- Disk Management to split my 300gb C partition into 2 partition: C (which is 162gb) E (which is 140gb) Is work fine for about 2 days. Today, when I turn on my computer, I'm very suprise that the E partition is disappear. I can surely confirm that I didn't do any stupid thing yesterday. And before I shut down my computer, everything was fine. In general, here is what I did during the last today (from the point that I formatted the disk, and installed Window) Format 300gb hard disk Install window 7 Install eclipse, db2, .... ( I'm a developer) Install some other tools (Open office, Skype...) Install PGP (http://www.symantec.com/encryption) <--- I'm forced to used that due to my company policy Use Computer -- Manager -- Storage -- Disk Management to split my 300gb C partition into 2 partition as described above. It worked quite well for two last days. Until day... Can you please help me to recover my lost partition ? Thank you! For more info, here is my partition info: You can also see the image here

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• How to connect to local instance of SQL Server 2008 Express

  - by Billy Logan

  I just installed SQL Server 2008 Express on my windows 7 machine. I previously had 2005 on here and used it just fine with the old SQL Server Management Studio Express. I was able to connect with no problems to my PC-NAME\SQLEXPRESS instance. I uninstalled 2005 and SQL Server Management Studio Express. I then installed SQL Server 2008 Express on my machine and elected to have it install SQL Server Management Studio. Now, when I try to connect to PC-NAME\SQLEXPRESS (with Windows Authentication, like I always did), I get the following message: Cannot connect to PC-NAME\SQLEXPRESS. 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) For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476 When I went to the help link it mentions, the help page suggests the following: * Make sure that the SQL Server Browser service is started on the server. * Use the SQL Server Surface Area Configuration tool to enable SQL Server to accept remote connections. For more information about the SQL Server Surface Area Configuration Tool, see Surface Area Configuration for Services and Connections. I did try starting the SQL Server Browser, but don't see that the Surface Area Configuration is installed with this express version. I had seen another user with an almost exact same issue that was missing the database engine on install. If that were the case how could i test for that and where would i go to download that install. Thanks in advance, Billy

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• deploy LAMP config to new boxes with low/no effort

  - by user1444233

  I'm spending a lot of time setting up new Centos 6 instances. I use a VCS (Subversion) for most of the config files and all of the webapp source files (Github), but even with excellent package managers (like yum, npm, easy_install, etc.) it still takes time. I'd like to get to the point where I could try out a new potential web host by just signing up for an account, logging in and automatically sucking my standardised config onto the box. I know there are a set of tools that can help: Puppet Chef Vagrant and a set of services that sell solutions: [Jumpbox] http://www.jumpbox.com/ [BitNami Cloud] http://bitnami.org/cloud I don't mind investing time in learning a new tool, but as a no-budget start-up, I'm keen to keep monthly costs down. My biggest concern is that time spent on the server config is time away from the codebase, and that's where I think my team and I should be investing our energy, at least until we get funded and scale up a bit. I'd be grateful of some recommendations for which way to jump on config: stick with SSH and manual deploys, at least until you get big. bite the bullet and learn [say] puppet. You may only use it 8-10 times, but it pays to have such an easy tunable server bootstrap. don't bother, just pay the $100/month for a standard config service. It'll cost you $1000/year, but you should focus on the code. Other questions in this domain I use quite a complex stack (Drupal, Zend Server, MySQL, PHP, MongoDB, Python, django), but are there standard(ish) setups that include these or that I could build upon more quickly? Are the configs optimised for small, medium, large VPS (1GB, 4GB, 16GB)? How secure are they?

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• Nagios NTP, discarding peer

  - by picca

  We're using nagios *check_ntp_time* for monitoring time on our servers. Unfortunately the service is flapping. And reporting a lot of false-positives. It happens everytime for random server in random day time and lasts for ~10-30 minutes. When the problem occurs we get: watch01:~ # /usr/lib/nagios/plugins/check_ntp_time -H lb01 -w 1 -c 2 -v sending request to peer 0 response from peer 0: offset 0.07509887218 sending request to peer 0 response from peer 0: offset 0.07508444786 sending request to peer 0 response from peer 0: offset 0.07499825954 sending request to peer 0 response from peer 0: offset 0.07510817051 discarding peer 0: stratum=0 overall average offset: 0 NTP CRITICAL: Offset unknown| When everything is ok, we get (I used different server to not have to wait): watch01:~ # /usr/lib/nagios/plugins/check_ntp_time -H web02 -w 1 -c 2 -v sending request to peer 0 response from peer 0: offset 0.0002282857895 sending request to peer 0 response from peer 0: offset 0.0002194643021 sending request to peer 0 response from peer 0: offset 0.0002347230911 sending request to peer 0 response from peer 0: offset 0.0002293586731 overall average offset: 0.0002282857895 NTP OK: Offset 0.0002282857895 secs|offset=0.000228s;1.000000;2.000000; We are using: check_ntp_time v1.4.15 (nagios-plugins 1.4.15) on Debian squeeze. Remote ntp daemon is: ntpd - NTP daemon program - Ver. 4.2.4p4 I already found some forums where the problem is described: 1, 2, 3. Every time they edvise to upgrade nagios-plugins, because in version prior to 1.4.13 there was a bug with inserted leap second. But we have already newer version of nagios-plugins.

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• Solaris ldap Authentication

  - by Tman

  Iv been having a trouble trying to get my Solaris 10 server to authenticate against an eDir server.im managed to Set up my linux(RHeL,SLES) servers to authenticate against the ldap Server.which works fine. Here is my configuration Files. ldapclient list: NS_LDAP_FILE_VERSION= 2.0 NS_LDAP_BINDDN= cn=proxyuser,o=AEDev NS_LDAP_BINDPASSWD= {NS1}ecfa88f3a945c22222233 NS_LDAP_SERVERS= 192.168.0.19 NS_LDAP_SEARCH_BASEDN= ou=auth,o=AEDev NS_LDAP_AUTH= simple NS_LDAP_SEARCH_SCOPE= sub NS_LDAP_CACHETTL= 0 NS_LDAP_CREDENTIAL_LEVEL= anonymous NS_LDAP_SERVICE_SEARCH_DESC= group:ou=Groups,ou=auth,o=AEDev NS_LDAP_SERVICE_SEARCH_DESC= shadow:ou=users,ou=auth,o=AEDev?sub?objectClass=shadowAccount NS_LDAP_SERVICE_SEARCH_DESC= passwd:ou=auth,o=AEDev?sub?objectClass=posixAccount NS_LDAP_BIND_TIME= 10 NS_LDAP_SERVICE_AUTH_METHOD= pam_ldap:simple getent passwd works fine: root:x:0:0:Super-User:/:/sbin/sh daemon:x:1:1::/: bin:x:2:2::/usr/bin: sys:x:3:3::/: adm:x:4:4:Admin:/var/adm: lp:x:71:8:Line Printer Admin:/usr/spool/lp: uucp:x:5:5:uucp Admin:/usr/lib/uucp: nuucp:x:9:9:uucp Admin:/var/spool/uucppublic:/usr/lib/uucp/uucico smmsp:x:25:25:SendMail Message Submission Program:/: listen:x:37:4:Network Admin:/usr/net/nls: gdm:x:50:50:GDM Reserved UID:/: webservd:x:80:80:WebServer Reserved UID:/: postgres:x:90:90:PostgreSQL Reserved UID:/:/usr/bin/pfksh svctag:x:95:12:Service Tag UID:/: nobody:x:60001:60001:NFS Anonymous Access User:/: noaccess:x:60002:60002:No Access User:/: nobody4:x:65534:65534:SunOS 4.x NFS Anonymous Access User:/: tlla:x:2012:100::/home/tlla: test:x:2011:100::/home/test: thato:x:2010:100::/home/thato: pam.conf login auth sufficient pam_unix_auth.so.1 #server_policy login auth sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass login auth required pam_dial_auth.so.1 rlogin auth sufficient pam_rhosts_auth.so.1 rlogin auth requisite pam_authtok_get.so.1 rlogin auth required pam_dhkeys.so.1 rlogin auth required pam_unix_cred.so.1 rlogin auth sufficient pam_unix_auth.so.1 rlogin auth sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass rsh auth sufficient pam_rhosts_auth.so.1 rsh auth required pam_unix_cred.so.1 rsh auth sufficient pam_unix_auth.so.1 #server_policy rsh auth sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass other auth requisite pam_authtok_get.so.1 other auth required pam_dhkeys.so.1 other auth required pam_unix_cred.so.1 other auth sufficient pam_unix_auth.so.1 other auth sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass passwd auth required pam_passwd_auth.so.1 passwd auth sufficient pam_unix_auth.so.1 ssh account sufficient pam_unix.so.1 ssh account sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass other account requisite pam_roles.so.1 other account sufficient pam_unix_account.so.1 other account sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass other password required pam_dhkeys.so.1 other password requisite pam_authtok_get.so.1 other password requisite pam_authtok_check.so.1 other password required pam_authtok_store.so.1 other password sufficient pam_unix.so.1 other password sufficient /usr/lib/security/pam_ldap.so.1 try_first_pass Local Authentication Works But LDAP Authentication Doesn't Work.

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• 550 Forged HELO with postfix on debian lenny

  - by Martin Ahrer

  I'm running postfix on a debian lenny system. sending mail in general works without any problems. however some recipent mail systems return an error and I can't get a clue what is causing the problem. So far I suspect that this is either postfix setup itself or the reverse dns resolution. The mail server is running on a virtual server from my service provider. running the command hostname is returning my.domain however running host <ip-address> is returning some alias from the virtual server system. now i'm not quite sure if that is causing my problem???? The mail system <recipient-mail>: host mx0.recipient.domain[xxx.xxx.xxx.xxx] refused to talk to me: 550 Forged HELO: you are not my.domain Reporting-MTA: dns; my.domain X-Postfix-Queue-ID: 6A1135B08002 X-Postfix-Sender: rfc822; [email protected] Arrival-Date: Tue, 13 Apr 2010 17:50:36 +0200 (CEST) Final-Recipient: rfc822; recipient-mail Action: failed Status: 5.0.0 Remote-MTA: dns; mx0.recipient.domain Diagnostic-Code: smtp; 550 Forged HELO: you are not my.domain

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• Running multiple services on different servers with IPv6 and a FQDN

  - by Mark Henderson

  One of the things NAT has permitted us to do in the past decade is split physical services onto different servers whilst hiding behind a single interface. For example, I have example.com behind a NAT on 192.0.2.10. I port-forward :80 and :443 to my web server. I'm also port forward :25 to my mail server, and :3389 to a terminal server and :8080 to the web interface of my computer that downloads torrents, and the story goes on. So I have 5 port forwardings going to 4 different computers on example.com. Then, I go and get me some neat IPv6. I assign example.com an IPv6 address of 2001:db8:88:200::10. That's great for my websites, but I want to go to example.com:8080 to get to my torrents, or example:3389 to log on to my terminal server. How can I do this with IPv6, as there is no NAT. Sure, I could create a bunch of new DNS entries for each new service, but then I have to update all my clients who are used to just typing example.com to get to either the website or the terminal server. My users are dumber than two bricks so they won't remember to connect to rdp.example.com. What options do I have for keeping NAT-style functionality with IPv6? In case you haven't figured it out, the above scenario is not a real scenario for me, or perhaps anyone yet, but it's bound to happen eventually. You know, with devops and all.

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• update all the servers through one virtual servers using Storage are network virtual machine

  - by Mr.Calm

  Using UBUNTU and Virtal Box by Oracle, and Using this script to start nginx in Virtual Box, and placing it in Virtual box inside~/init.d #!/bin/bash ### BEGIN INIT INFO # Provides: Testinit # Required-Start: # Required-Stop: # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: Start daemon at boot time # Description: Enable service provided by daemon. ### END INIT INFO # RETVAL=0; start() { CurrentTime=$(date +%d/%m/%Y"-"%I:%M:%S) ./usr/local/nginx/sbin/nginx echo "Current Time:"$CurrentTime>>/home/server/Desktop/NginxLogs.txt echo "!Starting nginx!" >>/home/server/Desktop/NginxLogs.txt Like this i want to write auto script (setup.sh file) and place that script in all virtual boxes inside my system, for example 8 virtual boxes and in all Virtual boxes NGINX is installed. Now, The thing is i am facing problem when i want change something in setup.sh i have to go to each and every virtual box, or Communicate each Virtual machine through SSH from my main machine. i am thinking to write another script (ex: Update.sh),and inside that script we give one path of file which is saved and recently edited in main machine (ex: DummySetup.sh). as soon as i run that script all the setup.sh files which are saved in each virtual machines should update the change or replace contents with DummySetup.sh's contents. Hope this is possible thing. Help would be appreciated.Thanking you

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