Multiple Plesk sw-engine-cgi instances causing server lag

[AlanRo]

From the process list:

4 S psaadm 27809 15656 0 75 0 - 45948 - 10:10 ? 00:00:00 /usr/bin/sw-engine-cgi -c /usr/local/psa/admin/conf/php.ini -d auto_prepend_file=auth.php3 -u psaadm
1 S psaadm 27831 27809 17 75 0 - 49845 fcntl_ 10:10 ? 00:00:01 /usr/bin/sw-engine-cgi -c /usr/local/psa/admin/conf/php.ini -d auto_prepend_file=auth.php3 -u psaadm
1 R psaadm 27832 27809 17 75 0 - 49849 - 10:10 ? 00:00:01 /usr/bin/sw-engine-cgi -c /usr/local/psa/admin/conf/php.ini -d auto_prepend_file=auth.php3 -u psaadm
1 S psaadm 27833 27809 12 75 0 - 49845 - 10:10 ? 00:00:00 /usr/bin/sw-engine-cgi -c /usr/local/psa/admin/conf/php.ini -d auto_prepend_file=auth.php3 -u psaadm


These processes are getting spawned every few seconds on the server and it occasionally has brought the server down. What is causing these and how can it be prevented? Is this a rogue attempt to access Plesk?

I completely blocked port 8443 using the iptables and this obviously stopped the problem, but running without Plesk is not an option at this time.

 

[IgorG]

Try to check this article http://kb.parallels.com/en/8119