Can I block all IPv6 traffic if I’m not using it/planning to use it?

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Can I block all IPv6 traffic if I’m not using it/planning to use it? – Managing your servers can streamline the performance of your team by allowing them to complete complex tasks faster. Plus, it can enable them to detect problems early on before they get out of hand and compromise your business. As a result, the risk of experiencing operational setbacks is drastically lower.

But the only way to make the most of your server management is to perform it correctly. And to help you do so, this article will share nine tips on improving your server management and fix some problem about linux, centos, firewall, ipv6, .

I’m setting up a CentOS server and I have no intention to use IPv6 on it by now. Because of this, I have a few simple questions:

  • Is there any problem in blocking all IPv6 traffic on this machine (in and out)?
  • If not, how can I accomplish it?

Thanks,

Solution :

I don’t think I’d block it; I think I would just disable the ipv6 stack.

http://www.vincentverhagen.nl/2007/06/22/disable-ipv6-on-red-hat/

you can either disable it in the config scripts or use sysctl net.ipv6.conf.all.disable_ipv6=1 to totally turn it off in the kernel.

Nonetheless… if you won’t actually have IPv6 connectivity, I would argue it’s not worth the effort.

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