Intel_RAID_HA_Solution_RHEL_WhitePaper

Intel® RAID High Availability Solution for Red Hat* Linux Systems White Paper Installation
Revision 1.0 Intel Confidential
15
2.8 Firewall and SELinux Changes
Firewall and SELinux settings should be updated on all nodes in an HA cluster to make sure
that the network communication authority and security policies are proper. To support clustering,
changes need to be made to the software firewall. These are described at the following link
including the use of the “service iptables” and “chkconfig iptables” commands:
https://access.redhat.com/site/documentation/en-
US/Red_Hat_Enterprise_Linux/6/html/Cluster_Administration/s2-iptables_firewall-CA.html
To simplify the complexity, we turn off firewall and SELinux in this white paper.
Figure 10. Change the Software Firewall
Update the SELinux configuration with command: vi /etc/selinux/config. Set
“SELINUX=disabled” in this file and save. Reboot the server to make the changes effective.
Figure 11. Change the SELinux Settings