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• SubDomain creation issue.Ubuntu 12.04 Apache 2.22 Webmin

  - by anarchos78

  I have a technical question concerning subdomains. My installation is UBUNTU 12.04 and WEBMIN for administration (using Apache web server). I am trying to create a subdomain to one IP (the domain is www.ithemis.gr and I want to create test.ithemis.gr and/or test1.ithemis.gr) with no success. I think I've tried the right way to set subdomains. The address does not resolving (I have already created DNS records via BIND). Do you have any suggestions? I am very new in server administration. Any help will be greatly appreciated! Apache configuration: In /etc/apache2/sites-available: Conf file:www.ithemis.gr.conf (main website) <VirtualHost 184.171.255.110:80> DocumentRoot /home/ithemis.gr ServerName www.ithemis.gr <Directory "/home/ithemis.gr"> allow from all #Options +Indexes Options +Includes -Indexes </Directory> </VirtualHost> Conf file:www.test.ithemis.gr.conf (subdomain website): <VirtualHost *:80> DocumentRoot /home/test.ithemis.gr ServerName test.ithemis.gr <Directory "/home/test.ithemis.gr"> allow from all Options +Indexes </Directory> </VirtualHost> My DNS records: Master Zone: ithemis.gr Name Type TTL Values ithemis.gr. NS Default ns1.themis.gr. ithemis.gr. A Default 184.171.255.110 ns1.ithemis.gr. A Default 184.171.255.110 ns2.ithemis.gr. A Default 184.171.255.110 mail.ithemis.gr. A Default 184.171.255.110 www.ithemis.gr. CNAME Default ithemis.gr. ithemis.gr. MX Default 5 mail.ithemis.gr. www.test.ithemis.gr. CNAME Default ithemis.gr. test.ithemis.gr. CNAME Default ithemis.gr.

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• Anonymous file sharing without login window, from Windows 7 server to XP clients

  - by Niten

  I'm trying to provide machines on a small LAN with read-only, anonymous access to files shared from a Windows 7 workstation (let's call it WIN7SVR). In particular, I don't want clients to have to deal with a login window when they navigate to, e.g., \\WIN7SVR in Windows Explorer, but we do not have a domain and synchronizing accounts between the server and clients would be intractable. There are both Windows 7 and Windows XP clients that need access to these shares. I got this working for Windows 7 clients by just enabling the Guest account on WIN7SVR and setting appropriate share permissions. Other Windows 7 machines automatically try logging in as Guest, it seems, so their users don't have to deal with the login window. The problem is with the XP clients--they can access the server if the user enters "Guest" in the login window, but I don't want users to have to do that. So from what I gather, in my limited understanding of Windows file sharing, this boils down to granting null sessions access to file shares on WIN7SVR. But I've had no success so far on that front. I've tried all the following in the local group policy editor on the Windows 7 server: Set Network access: Let Everyone permissions apply to anonymous users to Enabled Set Network access: Restrict anonymous access to Named Pipes and Shares to Disabled Added the names of corresponding shares to Network access: Shares that can be accessed anonymously Added "ANONYMOUS LOGON" to Access this computer from the network under User Rights Assignment Any advice would be highly appreciated... I'm mostly a Unix guy, so I feel somewhat out of my league with Windows file sharing. I do understand that any sort of anonymous access to file shares isn't generally ideal from a security standpoint, but it's the most practical solution for us in this case, and access to our network is well enough controlled that share-level security isn't a concern.

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• Internet Explorer will not open

  - by KCotreau

  I recently migrated a company to a Microsoft domain environment, logged the users in under their new domain accounts, and then copied the old profiles to the new profile. I am not sure if that is related since they did not complain about it right away and it may have been a subsequent patch or something, but I have two XP computers that will not open IE8. You click on it, and it nothing graphically happens at all, but you can see a process in task manager. If you click many times, you get multiple instances. It will appear often TWICE per click. It still works in the old profile, so it is specific to the profile, and I would like to fix it rather than blow it away. Here is what I have done without success: Tried opening without add-ons (the one in System Tools) Reinstalled IE8 Ran SFC /SCANNOW I found a script that was supposed to repair any registry entries, and ran it. I tried exporting the whole HKCU\Software\Microsoft\Internet Explorer key and deleting it, hoping that when I restarted it, it would recreate it...No joy. I restored it. Any ideas?

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• nginx giving 404 when accessing php from alias directory

  - by code90

  I am trying to migrate from apache to nginx. The php sites that I am hosting need to access a shared library which turns out to be an alias directory. Below is the configuration I came up with. html files work fine, but php files giving 404. I have read through and tried most (if not all) of the answers to the similar questions with no any success. Any hint on what might be causing the issue in my case? location /wtlib/ { alias /var/www/shared/wtlib_4/; index index.php; } location ~ /wtlib/.*\.php$ { alias /var/www/shared/wtlib_4/; try_files $uri =404; if ($fastcgi_script_name ~ /wtlib(/.*\.php)$) { set $valid_fastcgi_script_name $1; } fastcgi_pass 127.0.0.1:9013; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /var/www/shared/wtlib_4$valid_fastcgi_script_name; fastcgi_param REDIRECT_STATUS 200; include /etc/nginx/fastcgi_params; } Thanks all ! Update: Following seems to be working fine: location /wtlib/ { alias /usr/share/php/wtlib_4/; location ~* .*\.php$ { try_files $uri @php_wtlib; } location ~* \.(html|htm|js|css|png|jpg|jpeg|gif|ico|pdf|zip|rar|air)$ { expires 7d; access_log off; } } location @php_wtlib { if ($fastcgi_script_name ~ /wtlib(/.*\.php)$) { set $valid_fastcgi_script_name $1; } fastcgi_pass $byr_pass; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME /usr/share/php/wtlib_4$valid_fastcgi_script_name; fastcgi_param REDIRECT_STATUS 200; include /etc/nginx/fastcgi_params; }

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• Quota, AD and C#

  - by Gnial0id

  At first, my mother tongue is not English, so I apologize for the possible mistakes. I'm working on a WS2008R2 server with an Active Directory and a web platform manages this AD with C# code. A group of users have to be able to create user accounts but during the procedure, a disk quota for this new account is (and have to be) created. As the "creator" must not be a member of the Administrators group, the access to the c/: disk is denied. So, I want to perform the File Server Resource Manager operations with C# code by an non-admin account. The code is correct, it works normally with admin account. So, the problem turns around the permissions on the hard drive. I've looked after help on the Internet, without success. It seems that quota delegation is impossible. Only admin can perform this. A colleague helped me a bit, and found the GPO "By pass traverse checking" on a forum but it doesn't seems to be the good way. Any help would be appreciate.

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• PHP 5.3.2 Upgrade on Windows

  - by mcondiff

  I have a development box running Windows XP, Apache 2.2.15 Mysql and PHP 5.2.6 About a month ago I updated the Apache to the latest version and it went swimmingly. I am not having the same success with upgrading PHP to the latest version. I backed up my PHP directory and then deleted it. Used the Windows Installer for PHP 5.3.2, installed as an Apache 2.2.X module. I can get "Hello World" and phpinfo() to come up but cannot get mysql to connect. I have the extension un-commented in the php.ini and shouldn't really have to touch the Apache httpd.conf file since I didn't change the directory of PHP. Not sure what I'm doing wrong here. I have to get this right and then upgrade the Live Server too so I want to get this down pat. I've tried to use installation guides on the web with no luck. Any info pertaining to this problem would be great. I'm also afraid that the other PHP modules may not load but cannot really tell anything past mysql not working.

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• Hadoop initscript askes password

  - by Ramesh

  I have installed hadoop on my ubuntu 12.04 single node .I am trying to execute an init script to make the hadoop run on start up but it asks password every time i execute. #!/bin/sh ### BEGIN INIT INFO # Provides: hadoop services # Required-Start: $network # Required-Stop: $network # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Description: Hadoop services # Short-Description: Enable Hadoop services including hdfs ### END INIT INFO PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin HADOOP_BIN=/home/naveen/softwares/hadoop-1.0.3/bin NAME=hadoop DESC=hadoop USER=naveen ROTATE_SUFFIX= test -x $HADOOP_BIN || exit 0 RETVAL=0 set -e cd / start_hadoop () { set +e su $USER -s /bin/sh -c $HADOOP_BIN/start-all.sh > /var/log/hadoop/startup_log case "$?" in 0) echo SUCCESS RETVAL=0 ;; 1) echo TIMEOUT - check /var/log/hadoop/startup_log RETVAL=1 ;; *) echo FAILED - check /var/log/hadoop/startup_log RETVAL=1 ;; esac set -e } stop_hadoop () { set +e if [ $RETVAL = 0 ] ; then su $USER -s /bin/sh -c $HADOOP_BIN/stop-all.sh > /var/log/hadoop/shutdown_log RETVAL=$? if [ $RETVAL != 0 ] ; then echo FAILED - check /var/log/hadoop/shutdown_log fi else echo No nodes running RETVAL=0 fi set -e } restart_hadoop() { stop_hadoop start_hadoop } case "$1" in start) echo -n "Starting $DESC: " start_hadoop echo "$NAME." ;; stop) echo -n "Stopping $DESC: " stop_hadoop echo "$NAME." ;; force-reload|restart) echo -n "Restarting $DESC: " restart_hadoop echo "$NAME." ;; *) echo "Usage: $0 {start|stop|restart|force-reload}" >&2 RETVAL=1 ;; esac exit $RETVAL Please tell me how to run hadoop without entering password.

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• Group Policy for DNS Server Addresses

  - by John

  This question deals strictly with the methodology of using Active Directory to publish DNS settings and controlling the DNS server address order to domain attached clients. This is not asking about if this is the right function, role, or best use of group policy; but rather, how to make it work. I would like to be able to publish in group policy DNS addresses and possibly control the order in which the client consumes the addresses. I have tried following the information from this site without success. I set the following setting within group policy, but the client never shows the settings within the TCP/IP properties. Computer Configuration/Administrative Templates/Network/DNS Client/DNS Servers I did list them as a single space separated list. For example, the following: 192.168.0.1 192.168.10.3 192.168.34.2 192.168.2.67 192.168.56.99 192.168.99.23 This would be for Windows 7, Windows Server 2003, and Windows Server 2008 clients. I am not sure what I am doing wrong or how to get this to work. Am I missing a setting? Do I need to set something differently?

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• SELinux - Allow multiple services access to same /home/dir

  - by Mike Purcell

  I currently have SELinux enabled and have been able to configure apache to allow access to /home/src/web with a chcon command granting the 'httpd_sys_content_t' type. But now I am trying to serve the rsyslogd.conf file from the same directory, but every time I start rsyslogd I see an entry in my audit log saying that rsyslogd was denied access. My question is, is it possible to grant two applications the ability to access the same directory, while still keeping SELinux enabled? Current perms on /home/src: drwxr-xr-x. src src unconfined_u:object_r:httpd_sys_content_t:s0 src Audit log message: type=AVC msg=audit(1349113476.272:1154): avc: denied { search } for pid=9975 comm="rsyslogd" name="/" dev=dm-2 ino=2 scontext=unconfined_u:system_r:syslogd_t:s0 tcontext=system_u:object_r:home_root_t:s0 tclass=dir type=SYSCALL msg=audit(1349113476.272:1154): arch=c000003e syscall=2 success=no exit=-13 a0=7f9ef0c027f5 a1=0 a2=1b6 a3=0 items=0 ppid=9974 pid=9975 auid=500 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=30 comm="rsyslogd" exe="/sbin/rsyslogd" subj=unconfined_u:system_r:syslogd_t:s0 key=(null) -- Edit -- Came across this post, which is sort of what I am trying to accomplish. However when I viewed the list of allowed sebool params, the only relating to syslog was: syslogd_disable_trans (SELinux Service Protection), seems like I can maintain the current SELinux 'type' on the /home/src/ dir, but set the bool on syslogd_disable_trans to false. I wonder if there is a better approach?

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• Mystery 0xc0000142 error on starting java from a service, as a different user.

  - by cpf

  This is a very convoluted setup, but effectively this is what goes down: Manager service (which I don't have control over) running as admin user X starts my executable, which then starts Java as user Y using the standard c# StartInfo.Username/Password controls. Now, from a basic (not elevated or anything, just admin) command prompt I can run that executable, and Java pops up and works fine, running perfectly under the user it should be. When the service runs the same executable, however, Java silently fails. The only hint I see is this series of events in the event viewer: Service starts "Application popup: java.exe - Application Error : The application was unable to start correctly (0xc0000142). Click OK to close the application. " (googling this reveals a lot of scam sites telling me to use their "free antivirus to fix 0xc0000142 errors easy!"... sigh) Service stops (the java shutdown propagated, which is supposed to happen) And here's what process explorer has for the failure: As you can see, everything shows as a success. Now, I think this might have something to do with the permissions (the user java.exe is running under has traverse permission for the entire drive and full permissions to Directory A, which is where the .jar is), but I just can't fathom how something that works fine from the command line (and, this is an upgrade, the previous system without the user-switching aspect works fine from the service) can fail with such a cryptic message and little showing up in logs.

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• Roundcube "Server Error (OK!)": Lists no messages but can get messages according to the log file

  - by thonixx

  In my server setup there are three virtual machines. One windows machine, an Ubuntu Server 11.10 and a Debian Squeeze mailserver. On the Ubuntu system I have Roundcube installed and I want to connect to the virtual mail server. What's the problem After login into Roundcube it says "Server Error (OK!)" and lists no messages. More information On the Ubuntu server there is no error in any log file (even Roundcubes log files). In the imap log file there you can see Roundcube is able to fetch all imap messages (I can see them in the imap log file created by Roundcube). And on the side of the mail server there are no error messages too. The test connection at the end of the configuration of Roundcube works too, there is a "success" notification. Even the basic login at Roundcube login dialog works without any error message. Roundcube log file you can look here for the log file: http://fixee.org/paste/wxg36eh/ So does anyone know what's wrong with Roundcube?

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• Control Panel as menu includes a blank item

  - by Matthew Ferreira

  When viewed as a menu attached to the Start Menu in Windows 7 Ultimate x64, the Control Panel contains a blank item. It looks like this: This item cannot be deleted or removed. I also cannot create a shortcut to it. No error message is displayed, instead simply nothing happens. I've tried using Shell Object Editor (using Run as Administrator) to find out if there is an errant entry on the Control Panel, but many entries (almost two dozen) are blank. There are several valid entries as well. I've looked through the registry and through C:\Windows, \system32, and \SysWOW64 but have had no success. I looked at this question, but I am not using Windows XP and thus have no option to use Tweak UI's Rebuild Icons function. Please note that this is no empty entry in the Control Panel when opened normally, only when attached to the Start Menu as a menu. I have compared the list of entries on the attached menu to the normal Control Panel and other than the blank entry, they are exactly the same. Nothing is missing from one or the other. I've also compared the menu and the normal view to reference images and lists of Control Panel items and have found no irregularities. Is anyone familiar with this problem or know of a solution? I've performed virus and malware scans and found nothing. I've used CCleaner with no change. Nothing with Shell Object Editor. Nothing with Registry Editor. Certainly someone here knows how to fix this. My only guess is the many blank entries visible in Shell Object Editor, but I am reluctant to delete that many items without further analysis and guidance. I appreciate your time and consideration.

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• Upgrade SQLServer 2008 hardware

  - by John

  Forgive me if I'm not able to be totally clear here. It is not intentional, I'm a senior level developer in a very small company having to act like a manager at the moment. Anyway, the story is that we have 2 older dell servers with SQL Server 2008 Standard in a "cluster". I put that in quotes because I'm still not 100% clear what that means. We have 2 brand new blade servers and want to move the existing databases to the new hardware. Ok, so here is the gotcha. We need to do this with little or no down time. I'm being told that we can evict the passive node, then pull in one of the new servers. But I'm also being told that this is a dangerous step because something could go wrong that would cause the cluster to fail and then we would be left with nothing because the active server would not be able to come back up. Does anyone have any thoughts on how to handle this? I'm being told that the only way to ensure success is to have at least a day of down time where we bring up a new cluster on the new hardware and then migrate the databases 1 by 1.

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• csvde doesn't import users

  - by The Eighth Ero

  I have a small problem as I'm a server manager beginner, I installed a Domain Controller on my Windows Server 2008, and I created three OUs, now I'm trying to add users to each OU via csvde command, but I get as a result of the operation, without mentioning any errors: > C:\csvde>csvde -i -f List.csv > Connecting to "(null)" > Logging in as current user using SSPI Importing directory from file > "List.csv" Loading entries. > 0 entries modified successfully. Below is the csv file I'm using to add 2 users to "Offshoring1" OU, the domain name is "iado.lan". DN objectClass sAMAccountName sn givenName userPrincipalNAme cn=BB NN,ou=Offshoring1,dc=iado,dc=lan user BB NN BB [email protected] cn=II YY,ou=Offshoring1,dc=iado,dc=lan user II YY II [email protected] and this the csv data as generated by Word 2011 on my mac : DN;objectClass;sAMAccountName;sn;givenName;userPrincipalNAme cn=BB NN,ou=Offshoring1,dc=iado,dc=lan;user;BB;NN;BB;[email protected] cn=II YY,ou=Offshoring1,dc=iado,dc=lan;user;II;YY;II;[email protected] I do use -k option to force import but still no success.

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• Startup script for Red5 on Ubuntu 9.04

  - by user49249

  I am creating startup script for Red5 on Ubuntu. Red5 is installed in /opt/red5 Following is a working script on a CentOS Box on which Red5 is running [code] ==========Start init script ========== #!/bin/sh PROG=red5 RED5_HOME=/opt/red5/dist DAEMON=$RED5_HOME/$PROG.sh PIDFILE=/var/run/$PROG.pid # Source function library . /etc/rc.d/init.d/functions [ -r /etc/sysconfig/red5 ] && . /etc/sysconfig/red5 RETVAL=0 case "$1" in start) echo -n $"Starting $PROG: " cd $RED5_HOME $DAEMON >/dev/null 2>/dev/null & RETVAL=$? if [ $RETVAL -eq 0 ]; then echo $! > $PIDFILE touch /var/lock/subsys/$PROG fi [ $RETVAL -eq 0 ] && success $"$PROG startup" || failure $"$PROG startup" echo ;; stop) echo -n $"Shutting down $PROG: " killproc -p $PIDFILE RETVAL=$? echo [ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$PROG ;; restart) $0 stop $0 start ;; status) status $PROG -p $PIDFILE RETVAL=$? ;; *) echo $"Usage: $0 {start|stop|restart|status}" RETVAL=1 esac exit $RETVAL [/code] What do I need to replace for Ubuntu in the above script. My Red5 is in /opt/red5/ and to start it manually I always do /opt/red5/dist/red5.sh from Ubuntu As I did not find rc.d/functions on Ubuntu on my laptop also /etc/init.d/functions I did not existed. I would like to be able to use them with service as Red hat distributions do. I checked /lib/lsb/init-functions.

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• Converting a Windows 2003 server

  - by Jim Bass

  We have a legacy database system based upon MS SQL running on Windows Server 2003. The client software will only run on Windows XP. We have recently had success converting a client into a virtual machine and running it under Fusion on Mac minis. So far, it is working incredibly well. So well, in fact, that we are now considering trying to convert the server to a virtual machine. This raises several questions, though: 1. The server uses a raid array. Does the VM virtualize the raid array? I only ask because in my experience Windows products don't like it when you change core hardware. 2. Is there any reason why running SQL server on a virtual machine won't work? It will be up 24/7. 3. Is there a different converter for servers? 4. Will I have to track down the licensing for MS SQL and Server 2003 or will they come across ok? 5. The company that designed the software is no longer in business. There is some fear that the software is somehow tied to the hardware configuration. We bought the hardware, but their engineers came out and configured the system. Will the virtual machine be able to spoof particular chip sets? Thanks! Jim Bass

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• NTBackup (on WS2k3) fails to backup remote server (WS2k8R2) with " Error: is not a valid drive, or you do not have access."

  - by Mark A

  We run an NTBackup job on a Windows Server 2003 R2 SP2 with all updates (as of Q4-2011). It works well backing up two WS2k3 servers as well as the backup server itself. However, we have been unable to successfully back up our Windows Server 2008 R2 machine ("G5-01"). It often runs for about 2GB worth of backup and then dies out with one of the below error messages. It should be more like 20GB for the full server. We have tried using the admin share (C$), an explicitly shared drive share, UNC and mapped drives. The result is the same each time, the only thing that varies is the amount of stuff backed up before it chokes. We've also run NTBbackup from the UI interface, from the command line and as a scheduled task. We are backing up to 400/800GB tapes and they have plenty of space available on them (blank media). Error: \\G5-01\c is not a valid drive, or you do not have access. Error: \\G5-01\c$ is not a valid drive, or you do not have access. Error: Y: is not a valid drive, or you do not have access. Error: Could not access or create backup catalog files. Verify that you have full access to the working folder and there is disk space available. The job is run as Administrator and we have no problems logging onto the server and transferring files. The Event Log on the WS2k8 is not much help, as it has success audits for each login. All of the hardware involved (HP DL360 G3, HP LTO Ultrium 3, Adaptec 39320A) has the latest supported drivers. We've seemingly tried a bunch of different options but are wondering where to look next to resolve the backup issue. We've been super happy with our reliable schedule task for years but this one is stumping us!

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• Want to install GDB on Fedora 7 machine..

  - by RBA

  Hi, I want to install GDB GNU debugger for debugging C Programs, onto my fedora machine.. I installed the gzip file from gnu website, but it gives error during MAKE command.. I am doing all the steps correctly which reading from the readme file, and tutorial on internet. Please guide. Also i am trying to do from yum install gdb command and sudo apt-get install gdb, yum is not found in my system, i installed it, but now it is giving some unusual error, some file missing.. So no success with this.. sudo apt-get is working, but it is also giving some following errorss... [oracle@localhost Programs]$ sudo apt-get install gdb Password: Sorry, try again. Password: Sorry, try again. Password: oracle is not in the sudoers file. This incident will be reported. [oracle@localhost Programs]$ sudo apt-get install gdb I am in real nead of this gdb tool.. how to go about it.. Please share your experiences over this.. Thankx..

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• pam_tally2 causing unwanted lockouts with SCOM or Nervecenter

  - by Chris

  We use pam_tally2 in our system-auth config file which works fine for users. With services such as SCOM or Nervecenter it causes lockouts. Same behavior on RHEL5 and RHEL6 This is /etc/pam.d/nervecenter #%PAM-1.0 # Sample NerveCenter/RHEL6 PAM configuration # This PAM registration file avoids use of the deprecated pam_stack.so module. auth include system-auth account required pam_nologin.so account include system-auth and this is /etc/pam.d/system-auth auth sufficient pam_centrifydc.so auth requisite pam_centrifydc.so deny account sufficient pam_centrifydc.so account requisite pam_centrifydc.so deny session required pam_centrifydc.so homedir password sufficient pam_centrifydc.so try_first_pass password requisite pam_centrifydc.so deny auth required pam_tally2.so deny=6 onerr=fail auth required pam_env.so auth sufficient pam_unix.so nullok try_first_pass auth requisite pam_succeed_if.so uid >= 500 quiet auth required pam_deny.so account required pam_unix.so account sufficient pam_succeed_if.so uid < 500 quiet account required pam_permit.so password requisite pam_cracklib.so try_first_pass retry=3 minclass=3 minlen=8 lcredit=1 ucredit=1 dcredit=1 ocredit=1 difok=1 password sufficient pam_unix.so sha512 shadow try_first_pass use_authtok remember=8 password required pam_deny.so session optional pam_keyinit.so revoke session required pam_limits.so session [success=1 default=ignore] pam_succeed_if.so service in crond quiet use_uid session required pam_unix.so The login does work but it also triggers the pam_tally counter up until it hits 6 "false" logins. Is there any pam-ninjas around that could spot the issue? Thanks.

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• Package pinning in Debian lenny

  - by bronto

  I need your advice as I don't know if I hit a bug, or I am misunderstanding something. On a Debian Lenny, I am trying to prevent the installation of two particular packages, when they are requested as dependencies fromother packages. I am using the same syntax I successfully used in Squeeze, but with no success at all. On squeeze, the following works as expected: # cat /etc/apt/preferences.d/local-no-pike.pref Package: pike7.6-core Pin: version * Pin-Priority: -1000 If I try to install pike7.6, which depends on pike7.6-core, apt and aptitude refuse to do so. On Lenny, the only difference is that there is no support for "fragments" in /etc/apt/preferences.d, and all preferences must be in the /etc/apt/preferences file. But it's not working. E.g., if the file contains: Package: grub-common Pin: version * Pin-Priority: -1000 apt doesn't stop me from installing grub, which depends on grub-common. I used strace to see if the file is being read, and it is. I was suggested to use some Debug:: options, but they didn't help to pinpoint the problem either. I have google'd a lot with some combinations of "lenny" "prevent" "package" "installation" "pinning" and the like, but nothing nice came out. And of course I read man apt_preferences. What am I missing here?

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• TCP dies on a Linux laptop

  - by Roman Cheplyaka

  Once in several days I have the following problem. My laptop (Debian GNU/Linux testing) suddenly becomes unable to work with TCP connections to the internet. The following things continue to work fine: UDP (DNS), ICMP (ping) — I get instant response TCP connections to other machines in the local network (e.g. I can ssh to a neighbour laptop) everything is ok for other machines in my LAN But when I try TCP connections from my laptop, they time out (no response to SYN packets). Here's a typical curl output: % curl -v google.com * About to connect() to google.com port 80 (#0) * Trying 173.194.39.105... * Connection timed out * Trying 173.194.39.110... * Connection timed out * Trying 173.194.39.97... * Connection timed out * Trying 173.194.39.102... * Timeout * Trying 173.194.39.98... * Timeout * Trying 173.194.39.96... * Timeout * Trying 173.194.39.103... * Timeout * Trying 173.194.39.99... * Timeout * Trying 173.194.39.101... * Timeout * Trying 173.194.39.104... * Timeout * Trying 173.194.39.100... * Timeout * Trying 2a00:1450:400d:803::1009... * Failed to connect to 2a00:1450:400d:803::1009: Network is unreachable * Success * couldn't connect to host * Closing connection #0 curl: (7) Failed to connect to 2a00:1450:400d:803::1009: Network is unreachable Restarting the connection and/or reloading the network card kernel module doesn't help. The only thing that helps is reboot. Clearly something is wrong with my system (everything else works fine), but I have no idea what exactly. I don't know how to reproduce this, but as I said, it happens every several days. My setup is a wireless router that is connected to the ISP via PPPoE. Any advice?

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• Accidentally dd'ed an image to wrong drive / overwrote partition table + NTFS partition start

  - by Kento Locatelli

  I screwed up and set the wrong output for dd when trying to copy a freenas iso, overwriting the wrong external hard drive. Ironically, I was trying to setup a freenas server for data backup... External drive is only used for data storage, system is entirely intact Drive had a single NTFS partition filing the entire device (2TB WD elements) Drive originally had an MBR partition table. Drive now shows as having a GPT, presumably from the freenas image. Drive was mounted at the time, with maybe a couple kB of data written/read after running dd Drive is just a few months old and healthy (regular SMART / fs checks) I have not reboot the OS (crunchbang) /proc/partition still holds the correct information (and has been stored) Have dd's output (records in / out / bytes) testdrive did not find any partitions on quick or deep search running photorec to recover the more important data (a couple recent plaintext files that hadn't been backed up yet). Vast majority of disk content ( 80%) is unnecessary media files. My current plan is to let photorec do it's thing, then recreate the mbr with gparted and use cfdisk to create another NTFS partition using the sector information from /sys/block/.../. Is that a good course of action (that is, a chance of success)? Or anything else I should try first? Possibly relevant information: dd if=FreeNAS-8.0.4-RELEASE-p3-x86.iso of=/dev/sdc: 194568+0 records in 194568+0 records out 99618816 bytes (100 MB) copied grep . /sys/block/sdc/sdc*/{start,size}: /sys/block/sdc/sdc1/start:2048 /sys/block/sdc/sdc1/size:3907022848 cat /proc/partitions: major minor #blocks name ** Snipped ** 8 32 1953512448 sdc 8 33 1953511424 sdc1 current fdisk -l output: WARNING: GPT (GUID Partition Table) detected on '/dev/sdc'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sdc: 2000.4 GB, 2000396746752 bytes 255 heads, 63 sectors/track, 243201 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/sdc doesn't contain a valid partition table

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• IPTABLE & IP-routed netwok solution for HOST net and VM's subnet

  - by Daniel

  I've got ProxmoxVE2.1 ruled KVM node on Debian and bunch of VM's guests machine. That is how my networking looks like: # network interface settings auto lo iface lo inet loopback # device: eth0 auto eth0 iface eth0 inet static address 175.219.59.209 gateway 175.219.59.193 netmask 255.255.255.224 post-up echo 1 > /proc/sys/net/ipv4/conf/eth0/proxy_arp And I've got two working subnet solution auto vmbr0 iface vmbr0 inet static address 10.10.0.1 netmask 255.255.0.0 bridge_ports none bridge_stp off bridge_fd 0 post-up ip route add 10.10.0.1/24 dev vmbr0 This way I can reach internet, to resolve outside hosts, update and download everything I need but can't reach one guest VM out of any other VM's inside my network. The second solution allows me to communicate between VM's: auto vmbr1 iface vmbr1 inet static address 10.10.0.1 netmask 255.255.255.0 bridge_ports none bridge_stp off bridge_fd 0 post-up echo 1 > /proc/sys/net/ipv4/ip_forward post-up iptables -t nat -A POSTROUTING -s '10.10.0.0/24' -o vmbr1 -j MASQUERADE post-down iptables -t nat -D POSTROUTING -s '10.10.0.0/24' -o vmbr1 -j MASQUERADE I can even NAT internal addresses: -t nat -I PREROUTING -p tcp --dport 789 -j DNAT --to-destination 10.10.0.220:345 My inexperienced mind is ready to double VM's net adapters: one for the first solution and another - for second (with slightly different adresses) but I'm pretty sure that it's a dumb way to resolve the problem and everything can be resolved via iptables/ip route rules that I can't create. I've tried a dozen of "wizard manuals" and "howto's" to mix both solution but without success. Looking for an advice (and good reading links for networking begginers).

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• Mounted NFS directory not writable by Apache / PHP

  - by phpfour

  Need some help here with NFS. Here's what I have (all servers running CentOS 5.6 with SELinux): 172.17.20.1 - Primary server with static IP. Varnish redirects requests to the web servers. 172.17.20.2 - Web server 1 172.17.20.3 - Web server 2 The application residing on the web servers is running Drupal and I need both of them to share the same files directory. I have created a folder in 172.17.20.1 called /var/nfs with root user. Here is my /etc/exports content: /var/nfs 172.17.20.2(rw,sync,no_root_squash) 172.17.20.3(rw,sync,no_root_squash) On both the web servers (172.17.20.2/3), I have it mounted like below: [root@web2 ~]# mount ... 172.17.20.1:/var/nfs on /mnt/nfs/var/nfs type nfs (rw,sync,hard,intr,addr=172.17.20.1) On all the servers, I've added the user apache to the root group to get the desired write access: [root@main ~]# cat /etc/group root:x:0:root,apache .... .... apache:x:48: [root@web1 ~]# cat /etc/group root:x:0:root,apache .... .... apache:x:48: Despite all this, when I try to write files into the /mnt/nfs/var/nfs folder from Drupal/PHP, it cannot write to it. I even tried with a simple PHP upload script but it doesn't work, so the problem is not with Drupal. Any help you guys can do is much appreciated. I've spent hours and hours with it, without any success :( Thanks in advance.

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• External HDD incorrectly detected as internal - how change to enable hot swap/eject?

  - by Sam

  Hi All, I have win 7 x64 Home Prem. The HDD is a seagate barracuda, 7200.7 ST3120827AS. 3.5", Serial: 3ms006n6, Firmware: 3.42 (no further updates) NexStar CX External case (drivers installed). I have three drives: WD320 with OS installed WD750 data storage (internal) seagate 120 (external) - connected via esata board connected to sata on motherboard (MSI p43 neo) Tried uninstalling HDD in device manager to no effect. Also the internal WD750 is detected as an external drive and win taskbar icon allows for it to be ejected (unlike the seagate). All drives are configured - Online, Simple, Basic, NTFS, Active, Primary Partition (except c drive). The seagate was previously used as a primary disk with XP operating system so I deleted the volume and created/reformatted (not quick). HDD is no longer "Active". But did not fix problem. Background Originally, I installed win 7 with the bios set to IDE and forgot to install the chipset drivers. Then I changed win 7 to install the AHCI drivers, changed the bios to AHCI and rebooted. Win 7 loaded drivers but WD HDD gave problems/crashed. I installed chipset drivers and latest intell storage matrix software thingie (in safe mode). Everything worked fine after that except for the problem of not corrrectly detecting the external drive] I have noticed that under the driver properties (and similarly in the registry) the two drives are configured differently (e.g. in driver details property capabilities for the WD the value is set to 0000006, CM_DEVCAP_REMOVABLE & EJECTSUPPORTED - whereas the seagate shows 0000080 & CM_DEVCAP_SURPRISEREMOVALOK). Any easy way to configure things? I tried physically swapping the sata connections on the mainboard without success So far I have found that a solution to my problem might be to perform some reg changes: http://superuser.com/questions/12955/how-do-i-remove-the-option-to-eject-sata-drives-from-the-windows-7-tray-icon

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