Disable Ipv6 on Centos-5

By PrasadNaik

July 26, 2016

On up-to-date RHEL5 or CentOS5 (currently that means 5.10 aka 5U10)

Add the following line to /etc/sysctl.conf:

net.ipv6.conf.all.disable_ipv6 = 1

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

On a live system you can disable it with:

echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6

1	echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6

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