cPanel Exim error – exim dead but subsys locked

If you get error when restarting exim mail server in cpanel like “exim dead but subsys locked” try this solution. service exim status exim dead but subsys locked Copy file /etc/eximdisable and delete it. /etc/eximdisable /etc/eximdisable.backup rm -f /etc/eximdisable Try to start exim again service exim restart

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Check hard disk speed in CentOS from command line

You can check hardisk performance write/read speed in command line. For list all disk installed on your server use this command ; fdisk -l Sample output : Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id […]

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Install GMP 5 Math Library in cPanel server

GNU MP or GMP is a free library for arbitrary precision arithmetic, operating on signed integers, rational numbers, and floating point numbers. There is no practical limit to the precision except the ones implied by the available memory in the machine GMP runs on. GMP has a rich set of functions, and the functions have […]

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