A guide to easily disable IPv6 support on your Linux workstation / server:
1. Add the two lines, if not already present, to /etc/modprobe.conf:
alias net-pf-10 off
alias ipv6 off
2. Open /etc/sysconfig/network and look for the line containing NETWORKING_IPV6 and change the value to no as shown below:
NETWORKING_IPV6=no
3. Stop ip6tables firewall:
# /sbin/service ip6tables stop
4. Prevent the ip6tables firewall from coming up ever again:
# /sbin/chkconfig ip6tables off
5. Restart your network to see if everything is working correctly:
# /sbin/service network restart
Some articles suggest rebooting the machine at this stage so you may do that too.
Note: The original information is derived from this article and modified based on my experience with many servers.
Will this improve your performance? I don’t have benchmarks but in my experience it does. And for web severs every bit of performance you can extract is worth it. So if you are not using ipv6 then I suggest you disable it.
1. Add the two lines, if not already present, to /etc/modprobe.conf:
alias net-pf-10 off
alias ipv6 off
2. Open /etc/sysconfig/network and look for the line containing NETWORKING_IPV6 and change the value to no as shown below:
NETWORKING_IPV6=no
3. Stop ip6tables firewall:
# /sbin/service ip6tables stop
4. Prevent the ip6tables firewall from coming up ever again:
# /sbin/chkconfig ip6tables off
5. Restart your network to see if everything is working correctly:
# /sbin/service network restart
Some articles suggest rebooting the machine at this stage so you may do that too.
Note: The original information is derived from this article and modified based on my experience with many servers.
Will this improve your performance? I don’t have benchmarks but in my experience it does. And for web severs every bit of performance you can extract is worth it. So if you are not using ipv6 then I suggest you disable it.
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