Running two servers inside network

[Ansar Mohammed]

netstat -an

> -----Original Message-----
> From: owner-tlug-lxSQFCZeNF4 at public.gmane.org [mailto:owner-tlug-lxSQFCZeNF4 at public.gmane.org] On Behalf Of Robert F.
> Kennedy
> Sent: March 19, 2006 4:30 AM
> To: tlug-lxSQFCZeNF4 at public.gmane.org
> Subject: RE: [TLUG]: Running two servers inside network
> 
> Hi John,
> 
> That is a good idea, I'll change the IP instead. The reason I've used DMZ
> is
> that I don't know which ports are required for the various services. Is
> there a way of finding out? I'm running Apache, Postfix, Mailman, Mambo
> (PHP, MySQL), and DNS.
> 
> Thanks,
> Robert
> 
> 
> Toronto
> 
> -----Original Message-----
> From: owner-tlug-lxSQFCZeNF4 at public.gmane.org [mailto:owner-tlug-lxSQFCZeNF4 at public.gmane.org] On Behalf Of
> john-Da48MpWaEp0CzWx7n4ubxQ at public.gmane.org
> Sent: March 18, 2006 2:32 PM
> To: tlug-lxSQFCZeNF4 at public.gmane.org
> Subject: Re: [TLUG]: Running two servers inside network
> 
> > A few weeks ago my RH9 server got infected with a virus through PHP
> > and was doing DoS attacks on Google (a Microsoft virus perhaps) and
> > Jason, Tim, Peter, Eric and Neil suggested that I scrap the old server
> > and start fresh.
> > I am just getting around to that task now. I have a new machine with
> > CentOS installed (thanks to another TLUG member I enjoyed beer with
> > last Tuesday night but whose name I've forgotten). This is an
> > excellent upgrade path for someone running RH9.
> >
> > To test the new machine I went into my WRT54G Linksys router and
> > changed the DMZ from 192.168.2.39 (old machine) to 192.168.2.55 (new
> > machine). Did my testing late at night but when I set the DMZ back to
> > the old machine it stopped working.  This gave me quite a scare
> > because by looking at logs and so on it should have been working.
> > Zonked I went to sleep and when I got up this morning it just started
> > working again around 11:30AM. I have no idea why it stopped working
> > for about ten hours but I am looking for advice on how I can switch
> > back and forth without encountering this problem.
> 
> It sounds like a Linksys problem. I don't recommend using the DMZ option
> if
> you don't have to, this may have helped the hackers on your old system.
> I recommend that you only open the ports that you need to. Depending on
> your
> firmware, this can be done in Applications and Gaming.
> 
> Instead of changing the firewall to point to a new IP address you can swap
> the addresses on the servers.
> --
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