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Network Security Firewalls
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pfsync & carp on linux

Subject: pfsync & carp on linux
Date: Wed, 01 Nov 2006 00:21:17 +0200
Hello,

I am interested in implementing a load balancing and fail over firewall( with connection tracking support ).

 Currently the only non commercial solution that I know to be working, is pfsync and carp in BSD unices. If I am not wrong this combination allows load balancing and fail over between x firewalls connected to the same subnet, where the rules added to one firewall are propagated to the rest in the same subnet (pfsync) and the fail over mechanism is implemented by carp. Also as far as I have understood this configuration allows connection tracking information to be shared between the participating firewalls in the above fail over implementation. ( If I got it right "connection tracking" means the characteristics - sequence numbers, etc... - that specify a socket ).
ÂÂÂÂ As I am accustomed in using Linux(and netfilter), do you know if there is an alternative in the BSD(psfync & carp) configuration? I tried to "google" this search but only got posts before 2005.

Any help would be appreciated. ( I would like to hear about a non commercial/open source solution. )

Regards

YiannisÂ
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