Loading iptables Modules to Parallels Server

You can configure a list of iptables modules that will be loaded on the Parallels server after its startup by editing the /etc/vz/vz.conf file. The IPTABLES parameter in this file determines the iptables modules that will additionally be loaded to the server during the Parallels Server Bare Metal startup. For example, you can indicate the following iptables modules as the value of this parameter to have them automatically loaded to your Parallels server after the Parallels Server Bare Metal startup:

IPTABLES="ipt_REJECT ipt_tos ipt_limit ipt_multiport iptable_filter

iptable_mangle ipt_TCPMSS ipt_tcpmss ipt_ttl ipt_length"

All the specified modules will be loaded on the server startup once you restart it.