The Securetmp Script

This is a well known script in cPanel. This script can be used for two purpose. One is for prevents users from the use of malicious code in the /tmp and the /var/tmp directories. All users can write to the /tmp directory (with the securetmp in place) with noshell, normal, and jailshell accounts. The other use is to increase the /tmp partion.

Following detail would help to increase /tmp partition on cPanel.

Steps:

Login to server by SSH.

Stop the services using /tmp partition, those usually are cpanel, mysql and httpd.

/etc/init.d/cpanel stop

/etc/init.d/httpd stop

/etc/init.d/mysql stop

Make sure that no other processes are running using /tmp partion. This can be checked by following command.

lsof | grep /tmp

If you find any proceess, stop them by the PID.

Now, umount /tmp and /var/tmp, run this commands

umount -l /tmp

umount -l /var/tmp

Backup your current /usr/tmpDKS directory

mv /usr/tmpDSK /usr/tmpDSK.bkp

Edit the file /scripts/securetmp

In the file /scripts/securetmp you can find a section called #Global Variables with this line:

my $tmpdsksize = 512000;

You should be able to edit the file and increase the size as your wish.

Save the file

Re-create the /tmp partition by running by following command

/scripts/securetmp

Start cPanel, httpd and mysql service

Check the /tmp partion now.

Thats all