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Software Engineer

Steve WhiteDisabling IPv6 in RHEL 6

How to Disable IPv6

I came across a piece of software running on RHEL Linux which had issues binding to IPv6 enabled network adapters. As a quick workaround I disabled IPv6 on the system with the following steps (as root):

1. Edit /etc/sysconfig/network and add a line:

NETWORKING_IPV6=off

2. Add a new file /etc/modprobe.d/disable_ipv6.conf and insert the following single line:

options ipv6 disable = 1

3. Edit /etc/modprobe.d/modprobe.conf.dist and add:

install ipv6 /bin/true

4. Run: service ip6tables stop
5. Run: chkconfig ip6tables off
6. Reboot the system

Not ideal but the software subsequently came up on the next reboot and bound to the correct network adapter.

Regards,

Steve

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