The firewall rules are only active if the iptables service is running. To manually start the
service, use the command:
/sbin/service iptables restart
|
To ensure that it is started when the system is booted, issue
the command:
/sbin/chkconfig --level 345 iptables on
|
The ipchains service is not included in
Red Hat Enterprise Linux. However, if ipchains is installed (for example, an upgrade was
performed and the system had ipchains
previously installed), the ipchains
service should not be activated along with the iptables service. To make sure the ipchains service is disabled and configured not to
start at boot time, execute the following two commands:
/sbin/service ipchains stop /sbin/chkconfig
--level 345 ipchains off
|
The Services Configuration Tool can
be used to enable or disable the iptables
and ipchains services.