An appreciation’s aim is to acknowledge the effort that system Administrator  do every day of the year 24×7 to keep everything working .

I hope all are enjoying it

Happy System Administrator Appreciation Day !!!!!!!!!

Regards

Alex Parker

This notification is sent out when “tailwatchd::chkservd” hangs. I have seen a few instances where this has happened as a result of the “update_sa_rules” command hanging due to a SpamAssassin RPM installed on the system. Please check to see if you have a SpamAssassin RPM installed on your system:

Code:

# rpm -qa|grep -i spam

If you do, I advise removing it, and reinstalling SpamAssassin via:

Code:

# /scripts/installspam

oracle-instantclient11.2-basic-11.2.0.3.0-1.i386.rpm and
oracle-instantclient11.2-devel-11.2.0.3.0-1.i386.rpm

from the oracle website and install them:

# rpm -ivh oracle-instantclient11.2-basic-11.2.0.3.0-1.i386.rpm
# rpm -ivh oracle-instantclient11.2-devel-11.2.0.3.0-1.i386.rpm

Installing OCI8 from PECL

The OCI8 extension can be added to an existing PHP installation either automatically or manually from » http://pecl.php.net/. Information for installing this PECL extension may be found in the manual chapter titled Installation of PECL extensions. Additional information such as new releases, downloads, source files, maintainer information, and a CHANGELOG, can be located here: » http://pecl.php.net/package/oci8.

For an automated install follow these steps:

If you are behind a firewall, set PEAR’s proxy, for example:

• pear config-set http_proxy http://my-proxy.example.com:80/

• Run

  pecl install oci8

  When prompted, enter either the value of $ORACLE_HOME, or instantclient,/path/to/instant/client/lib.

  Note: Do not enter the variable $ORACLE_HOME because it will not be expanded. Instead, enter the actual path of the Oracle home directory.

For a manual install, download the PECL OCI8 package, e.g. oci8-1.3.5.tgz.

• Extract the package:

  tar -zxf oci8-1.3.5.tgz
  cd oci8-1.3.5

• Prepare the package:

  phpize

• Configure the package, either using $ORACLE_HOMEor Instant Client

  ./configure -with-oci8=shared,$ORACLE_HOME

  or

  ./configure –with-oci8=shared,instantclient,/usr/lib/oracle/11.2/client/lib/

• if you get this error: checking Oracle Instant Client SDK header directory… configure: error: Oracle Instant Client SDK header files not found it means your oracle devel package didnt install correctly.

  then run

• Install the package:

  make install

After either an automatic or manual install, edit your php.ini file and add the line:

extension=oci8.so

If you are having issues using oci_pconnect (causing apache segmentation faults) then you will need to use –with-oci8=shared,instantclient,/usr/lib/oracle/11.2/client/lib and install the 1.3.0 version of the OCI client from http://pecl.php.net/package/oci8

Linux Installations

1. Start a remote SSH session or access a GUI terminal window (Konsole in KDE, Gnome Terminal in Gnome, etc.)

2. Use one of the following commands to stop the buagent service:

# /etc/init.d/cdp-agent stop

or

# service cdp-agent stop

3. Create the empty file /usr/sbin/r1soft/.recovery-mode:touch /usr/sbin/r1soft/.recovery-mode
as shown:

4. And last, save the /etc/init.d/buagent file, and restart the agent service.

/etc/init.d/cdp-agent start

or

service cdp-agent start

This will successfully place the Linux R1Soft Agent into recovery mode.

I have seen recent cPanel upgrade from old version 11.24 to 11.30 and got the following error.

# /scripts/upcp
/scripts/upcp syntax OK
Running Futex Check/Fix……Done
Undefined subroutine &Cpanel::Update::automatic_updates_enabled called at /scripts/upcp line 273.

This can be fixed using below :

wget -O /root/updatenow.static http://httpupdate.cpanel.net/cpanelsync/RELEASE/scripts/updatenow.static && perl /root/updatenow.static --manual

Upgrade the cPanel :

/scripts/upcp --force

it should be work perfect.

Regards

Alex P

HTTP ERROR 500

Problem accessing /service/home/admin@domainname/Notebook. Reason:

    system failure: wiki formatter failure

Sounds like you don’t have Documents enabled,You can use following steps to enable it.

All you need to do is re-initalize the notebook template for the renamed wiki user (wiki@domain.com)

1. login to the zimbra server.
2. Shell into the zimbra account (su – zimbra)
3. run zmprov in wiki@domain.com
4. look for the following output: Initializing folders

Regards

Alex P.

Could not send message to SMTP server. Check that you have access to send messages via the server and that all To/CC/BCC addresses are valid\nError: SMTP Server rejected mail. Returned:553

What may cause the problem?

Solutions :

Seemed like atmail didn’t authenticate when trying to send the email. After searching through the sources found that in the @mail config file (/var/www/atmail/libs/Atmail/Config.php) there is an option to authenticate with an username/password

‘smtpauth_password’ => ”,
‘smtpauth_username’ => ”,

by default they’re empty.
if you put here a valid username and password, the messages will be sent.
The problem is that I wanted that the users authenticate with their own credentials when sending messages.

So here’s the way I fixed it:

Open the file /var/www/atmail/libs/Atmail/SendMsg.php

Search for the line “// Optionally authenticate with the SMTP server”

Add below line :

$auth =& $atmail->getAuthObj();
$pref['smtpauth_username'] = $auth->Account;
$pref['smtpauth_password'] = $auth->password;

That’s it. This will override the auth settings from Config.php with the credentials the user used to log in.

After that try to send an email it will work.

This post looks at what caused the issue and how to fix it.

Clearly there’s something wrong with the way phpmyadmin sessions are being used. Cpanel work with is own internal PHP and store the application session files in different folder for security reason.

On Cpanel server, every application as his own php configuration setting like phpmyadmin , php configuration file is /usr/local/cpanel/3rdparty/etc/phpmyadmin/php.ini , roundcube (/usr/local/cpanel/3rdparty/etc/roundcube/php.ini)

PHPmyAdmin session files are store in /var/cpanel/userhomes/cpanelphpmyadmin/ folder.  The /var/cpanel/userhomes/cpanelphpmyadmin/ folder ownership should be cpanelphpmyadmin.cpanelphpmyadminn  /var/cpanel/userhomes/cpanelphpmyadmin/ in order to get phpmyadmin work perfect.

root@server [/var/cpanel/userhomes]# chown cpanelphpmyadmin.cpanelphpmyadmin cpanelphpmyadmin/ -R

If session folder owned by any other username rather than cpanelphpmyadmin then you will get “Cannot start session without errors, please check errors given in your PHP and/or webserver log file and configure your PHP installation properly” error.

root@server [/var/cpanel/userhomes]# ll
drwxr-xr-x  4 cpanel           cpanel            4096 Dec 11 23:04 cpanel/
drwx--x--x  4 cpanelhorde      cpanelhorde       4096 Sep 24  2009 cpanelhorde/
drwx--x--x  4 cpanelphpmyadmin cpanelphpmyadmin  4096 Sep 24  2009 cpanelphpmyadmin/
drwx--x--x  4 cpanelphppgadmin cpanelphppgadmin  4096 Sep 24  2009 cpanelphppgadmin/
drwx--x--x  4 cpanelroundcube  cpanelroundcube   4096 Sep 24  2009 cpanelroundcube/
root@server [/var/cpanel/userhomes]#

Regards

Alex P

Whenever you are trying to upload an image using the flash uploader in WordPress and received a “HTTP error”? and uploading images status stuck in crunching ……..

Here solutions::

The problem has something to do with mod_security, which is basically a web application firewall that protects your website from a range of attacks. So you shouldn’t turn off this module as it protects your site from such malicious attack , You can add a special rule in .htaccess file which can be found in the root folder of your WordPress installation to get work the flash uploader.

Open the .htaccess file in your website document root and add the following lines:

• For Apache 1.X
  

  <IfModule mod_security.c>
  <Files async-upload.php>
  SecFilterEngine Off
  SecFilterScanPOST Off
  </Files>
  </IfModule>

• For Apache 2.X
  

  <IfModule mod_security2.c>
  <Files async-upload.php>
  SecRuleEngine Off
  SecAuditEngine Off
  </Files>
  </IfModule>

Then try to upload the images it should be work like charm D:

Today I came across a neat, but pointless shell command. By running the following in shell, it will hide any commands you run.

root@server2 [/]# stty -echo

In order to disable this mode, simply remove the “-” before echo.

root@server2 [/]# stty echo

I guess there really is no point to the command, though you could always mess with your coworkers if they leave their shell prompt open

Cheers.