System has hard cross-device links. For example, /usr/tmp linked to /var/tmp and /var mounted to a separate partition.

Example:

/usr/tmp linked to /var/tmp and /var mounted to a separate partition.

To fix the problem:

1. Create /usr/.tmp directory

2. Add the following entry to the /etc/virtualhosting/tmpdirs:

3. Restart epld

or

Reference : http://parallels.com

If the virtual private server already exists, run the following command to set the parameter:

Where, 101 is the VPS ID number.

Restart the virtual private server.

To enable user/group quota on a virtual private server:

Edit the configuration file to set the parameter QUOTAUGIDLIMIT that controls the second-level disk quota. The two instances when you can set the parameter is:

If you are setting the parameter before the creation of the virtual private server:

Go to the location of the virtual private server configuration file. /etc/sysconfig/vz-scripts

To enable disk quota set the value of QUOTAUGIDLIMIT to a positive value, in the configuration file. For example: QUOTAUGIDLIMIT=”150″

The default value of the parameter is zero. Setting the value of the parameter to zero disables user/group quotas.

Note: Ensure that you use this configuration file when creating the virtual private server.

Reference: http://parallels.com

Customizing the Site Administrator’s navbar to have links with URL that has both dynamic and static information.

Customizing the Site Administrator’s navbar to have links with URL of the format http:/// where is dynamic and is static information.

Download:

http://download.swsoft.com/ensim/download/pro/linux/kb/2515/customization.zip
http://download.swsoft.com/ensim/download/pro/linux/kb/2515/customizer.sh
http://download.swsoft.com/ensim/download/pro/linux/kb/2515/eplpro_urlconfiguration_guide.pdf
http://download.swsoft.com/ensim/download/pro/linux/kb/2515/filelist.txt

Installation Instruction:

Run command cd /usr/lib/ensim/frontend/skins

Copy the 3 files, customization.zip, customizer.sh and filelist, to this location.

Run command sh customaizer.sh. This command will create a backup.zip file of the 3 files that will be overwritten and store it in /tmp/ location. Also, it will overwrite the XSL files for all 3 skins.

Follow the instructions under the topics “Adding a static entry in the XMLfile” & “Viewing your changes” as described in eplpro_urlconfiguration_guide.pdf

Reference : http://parallels.com

If you are changing the IP address of your server you need to modify the following files with the new IP address, replacing any instance of the old IP address:

Now reboot the server and then run the following command

Apache crash on high load with the following error in the error log: “(28) No space left on device: mod_python: Failed to create global mutex 1 of 4 exclog: signal received 15″

The problem may be caused by small number of semaphores in system.

Resolution is to increase number of semaphores.

To increase the number of semaphores please take the following steps, Login to your PPCPL server as root. Open the /etc/sysctl.conf file using a text editor

Locate the kernel.sem parameter and double current values

If the parameter is not defined in the /etc/sysctl.conf file you can obtain current values by executing the following command:

After obtaining current values, double them and add to the /etc/sysctl.conf file so that the line looks like.

Execute sysctl in order the changes to take effect

Only 20 characters allowed as password in protected directory section.

For RHEL4:

http://download.swsoft.com/ensim/download/pro/linux/10.0.0/hotfix/19/rhel4/epl-apache-10.0.0-31.rhel.4ES.i386.rpm

Installation Procedure:

Get the RPMs from the locations mentioned above.

2. Upgrade the RPMs.

For RHEL4ES:

3. service epld restart.

Sometimes, the site is not fully removed from the server so it should be deleted manually. Here are all steps that should be done, but please note that after deleting the site can not be restored back.

Everything should be done from under root user.

Check which siteX the site corresponds to:

and what adminX is responsible for it:

Let’s say siteX is site handler for the necessary domain, and adminX is the owner.

Remove user content physically from the server:

And remove the records from the system database:

Finally, you need to go through all the files in /etc/virtualhosting/mappings and check if any of them refer to the site you’re deleting. You can use grep to quickly see if/which files might refer to the site to be deleted:

And finally - restart ensim CP:

Reference and Credit : http://parallels.com/

dmesg and /var/log/messages show the following messages.

kernel: VFS: Can’t read quota structure for id 32048.
kernel: VFS: Quota for id 32049 referenced but not present.

This can happen due to a server crash when the filesystems are not unmounted properly, causing the filesystem and quota information to go out of sync.

To fix this run the following commands:

quotacheck Scan a filesystem for disk usage, create, check and repair quota files

The import of a site with custom MX records could cause creation of duplicated MX records: apart from custom MX records which are defined in the imported archive, default MX records could be created.

In order to avoid this, please proceed through the following steps when importing a site with custom MX records:

1. Before importing sites disable the creation of default MX records. Run the following command(s) as root:

2. Restart epld service using the following commands as root:

3. Import site from the archive.

4. When the site is succesfuly imported, please turn off the freezing of MX records for imported sites.

For this, run the following commands as root:

Reference : http://parallels.com/