Problem loadbalancing email servers

[Owens, Ron]

Graeme

There's no firewall between the director and the cluster nodes. They
work with http and squid with no modification.

The RIP of the director is 140.203.7.81
The IP of the mail server is 140.203.7.16

I tried adding:

iptables -A INPUT -i eth0 -p tcp ! --syn -s 140.203.7.81 --sport 25 -d
140.203.7.16 --dport 1024:65535 -j ACCEPT

but this didn't help .... 

I'm not up to speed on iptables etc

Is there anything obvious wrong with this?

Ron


-----Original Message-----
From: lvs-users-bounces at LinuxVirtualServer.org
[mailto:lvs-users-bounces at LinuxVirtualServer.org] On Behalf Of Graeme
Fowler
Sent: 01 December 2006 15:17
To: LinuxVirtualServer.org users mailing list.
Subject: Re: Problem loadbalancing email servers

Hi

On 01/12/2006 15:12, Owens, Ron wrote:
> Watching output from ipvsadm, it does the required health checks and
the
> RIPs appear in the table. However, when I try to send an email to the
> VIP, the client lods and error "no route to host".

That looks to me like there's a firewall in the way somewhere. Have you 
opened a hole in you netfilter/iptables rules on the director for port
25?

Graeme
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