[vox-tech] 2 Network cards not getting along

[Brian Lavender]

Do you have forwarding turned on?
echo "1" > /proc/sys/net/ipv4/ip_forward

On Mon, Dec 14, 2009 at 12:34:27PM -0800, Alex Mandel wrote:
> This is probably a strange use case, and I'm aware it's not optimum but
> I need to get it to work while a more long term solution is discussed.
> 
> I have a server
> It has 2 network cards
> card 1 is serving a website to the world and is on subnet 1
> card 2 is serving a database, and samba share and is on subnet 2
> 
> While card 2 is turned on, people on subnet 2 are unable to see the
> website, though the rest of the world can. It doesn't matter if they use
> the domain name, the subnet 1 ip or the subnet 2 ip address, they all
> timeout. If I turn card 2 off everybody can see the website.
> 
> So how do I even begin to troubleshoot this issue?
> 
> In the long run this could all be avoided by relaxing the firewall rules
>  to allow both subnets access to the various ports it needs, but for
> whatever reason there is a hardware firewall on subnet 1 that I have 0
> control over. It's removal has been requested but that might take a few
> months. Besides that I can't think of a reason why the setup wouldn't work.
> 
> (Server is Apache 2.2, Ubuntu 8.04)
> subnet 1 has no domain controller
> subnet 2 has a windows domain controller (probably Win Server 2008,
> maybe still 2003)
> 
> Thanks,
> Alex
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-- 
Brian Lavender
http://www.brie.com/brian/