Disable IPV6 in Cent OS 6/RHEL 6

 In Linux some application doesn’t support IPv6 and due to this IPv6 application creates problem. You can disable IPv6 in RHEL 6 and Cent OS 6 by making following entries.

1.      Append following line at the end of /etc/sysctl.conf file.

#  vi /etc/sysctl.conf

net.ipv6.conf.all.disable_ipv6 = 1

2.      Run sysctl –p to reload kernel parameter.

3.      Append following lines in /etc/sysconfig/network file.

#    vi /etc/sysconfig/network

IPV6INIT=no

NETWORKING_IPV6=no

4.      Reboot the system using command reboot.