Ayad knowledge base

the solution is below
go to /var/cpanel/serviceauth/

remove the directory exim

cd /var/cpanel/serviceauth/
rm -rf exim

Restart Cpanel.
/etc/rc.d/init.d/cpanel restart

The folder exim will be recreated…

that should fix the issue.

Reference
http://presoon.com/blog/2009/03/20/535-incorrect-authentication-data-exim-cpanel/

can not increase , in order to increase it then you need to install Suhosin
Please refer to this article for more details
http://forums.cpanel.net/f402/workaround-cve-2011-4885-php-5-2-17-a-258022.html

sudo yum install php-mbstring
sudo /sbin/service httpd restart

reference
http://drupal.org/node/125354

for ((i=0; i<=2160; i++)); do uptime; sleep 120; done

use the below command

/usr/local/cpanel/bin/dcpumonview

the below installation for Linux ( Centos)

rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/x86_64/epel-release-5-4.noarch.rpm

rpm -Uvh http://download.fedora.redhat.com/pub/epel/5/i386/epel-release-5-4.noarch.rpm

yum install iftop

ps aux | awk ‘{print $4?\t”$11}’ | sort | uniq -c | awk ‘{print $2? “$1? “$3}’ | sort -nr | head

grep out_of_memory /var/log/messages

Please refer to below

Refer to the below URL

http://www.hosting.com/support/linux/evaluate-disk-usage-on-linux-plesk-server