From: Kovacs Krisztian <hidden@balabit.hu>
To: jimm@simutronics.com
Cc: "LinuxVirtualServer.org users mailing list."
<lvs-users@linuxvirtualserver.org>,
netfilter@lists.samba.org
Subject: Re: LVS and fault-tolerant Firewall.
Date: Wed, 17 Sep 2003 10:09:35 +0200 [thread overview]
Message-ID: <3F6816BF.4040006@balabit.hu> (raw)
In-Reply-To: <NDBBKABJBJCIJNAELLKEIECJJDAA.jimm@simutronics.com>
Hi,
James Miller wrote:
> Yes, but you can not run iptables/netfilter and maintain connection tracking
> with keepalived(vrrp).. so if you fail over, established/related traffic
> will not be known to .
>
> For some folks this isn't an issue. For me is a show-stopper. I'm sure
> there are good reasons why the netfilter folks can't come up with conntrack
> state-sharing mechanism.
This is not true. Harald has published a paper last year at OLS2002,
which gives an overview how connection tracking failover could be
implemented for Netfilter. There are no theoretical problems with the
approach, I've created some proof-of-concept code this spring. However,
it's far from being usable in a real-world environment, at the moment, and
this is the primary reason it has not been released to the public yet. You
can get slightly more information from my presentation at the second
Netfilter Workshop, available in OpenOffice.org Impress format at
http://home.sch.bme.hu/~piglet/nf-ha/nfws_ha.sxi
--
Regards,
Krisztian KOVACS
next prev parent reply other threads:[~2003-09-17 8:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1063747546.3f677fdab3817@webmail.datafx.com.au>
2003-09-16 22:41 ` LVS and fault-tolerant Firewall James Miller
2003-09-17 8:09 ` Kovacs Krisztian [this message]
2003-09-17 9:25 ` Joseph Mack
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