Are established connections interrupted when iptables is restarted?

Gavin Hamill gdh at acentral.co.uk
Wed Dec 22 16:11:43 CET 2004


On Wednesday 22 December 2004 15:06, Deepak Seshadri wrote:
> Hello group,
>
> I make changes in the /etc/sysconfig/iptables file and then do a "service
> iptables restart". Would this interrupt the established connections through
> the firewall?

Provided that 'service iptables restart' does not unload the conntrack module, 
then the established-connections table will not be reloaded - you will likely 
have a second or two of no connectivity while the ruleset is reloaded, 
though.

Cheers,
Gavin.



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