RHEL

Simple tricks for RHEL that are common to me.

Disable ipv6

RHEL 7

1. Append below lines in /etc/sysctl.conf:

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1

Then run

sysctl -p

RHEL 5.4 has an easy way to disable ipv6. The other methods don't work when the iscsi driver is loaded. To disable:

echo "options ipv6 disable=1" > /etc/modprobe.d/disable-ipv6

http://planet.admon.org/2009/09/how-to-disable-the-ipv6-protocol/

Links

http://planet.admon.org/2009/09/how-to-disable-the-ipv6-protocol/ - How to disable the IPv6 protocol?