ServerBuddies Support Blog

Instructions for deleting the swap file after import in Ensim

Eg. partition - /dev/hda3 mounted on /, swap file - /var/swapfile.

Turn off swapping for file “/var/swapfile” with the following command:

swapon, swapoff - enable/disable devices and files for paging and swapping

Swapoff disables swapping on the specified devices and files. When the -a flag is given, swapping is disabled on all known swap devices and files (as found in /proc/swaps or /etc/fstab)

Delete the file “/var/swapfile” with the following command:

Instructions to setup swap file

Select the partition where you want to create the swap file. This partition must have free disk space to create the swap file.

Create a file for swap with the following command (# is shell prompt):

where [count]= number of 1024 blocks required. If count=1024000 size of /var/swapfile will be 1024* 1024000 = 1 GB .

You can decide the size of “/var/swapfile” depending on the size of the backup tar file.

Setup an extra swap with the following command:

Enable “/var/swapfile” for swapping with the following command:

Verification: The file “/proc/swaps” must contain the entry for the swap file “/var/swapfile”. If this entry is not present, then swapping has not been enabled for the swap area.

Fix MemoryError exception occuring during import sites with Ensim Pro

Restore of appliance, reseller, site and user fails with the “MemoryError” if the size of the backup tar file is greater than the aggregate size of RAM and swap space.

Add extra swap space to the EPL server before doing the restore.

The extra swap space is added to the EPL server by setting up a new swap file and enabling swapping on it. The EPL server must have enough disk space to create the swap file. After the restore is successful the swap file can be deleted following the instructions provided to delete the swap file.

Recommended firewall setup for Ensim Pro for Linux

The following is the list of ports used by Ensim Pro for Linux that need to be open if the server is installed behind a firewall.

TCP Port Service

UDP Port Service

Setting up sendmail over SSL on Ensim Pro Control Panel for Linux

Login as root on your Ensim Pro Control Panel for Linux box

Backup your current sendmail conf file

Prepare sendmail’s certificate

You will be prompted with several questions typical for SSL certificate generation)

Backup /usr/lib/opcenter/sendmail/install/sendmail.mc file

Edit /usr/lib/opcenter/sendmail/install/sendmail.mc file

Uncomment the following lines to point to your generated certificate

Rebuild sendmail conf file

Restart sendmail

You can check if sendmail is listening on 465 port by issuing command

Reference: http://parallels.com