Monitor 2nd mail server behind natted router

[Alex Dehaini]

The issue is the mail router is natted to only one local IP.



On Mon, Oct 20, 2008 at 10:13 AM, Assaf Flatto <assaf.flatto at ssp.uk.com>wrote:

> You should be able to do that .
>
> if you have access to the server , and the routing allows you to reach it ,
> ( and as you say you do
> not have an ip collision ) then you can monitor it just like any server on
> the network , but you
> may want to be more security aware on what you transmit on public IP .
>
>
>
>
> On Monday 20 October 2008 11:03:36 Alex Dehaini wrote:
> > Nagios is on a public IP, the router is on a public IP and the two
> servers
> > are on local IPs. Here is the connection
> >
> > *mail1*(localIP) --------
> >                       ------------- *MailRouter*(PublicIP) ----- Switch
> > ------- (*Nagios*)(PublicIP)
> > *mail2* (localIP) --------
> >
> > If the two servers have the same local IP, there will be IP conflict.
> > NSClient basically sends info from the server to nagios. I can do that
> for
> > one mail server, I wonder if I can do that for the sendcond one.
> >
> > Thanks,
> > Lex
> >
> > On Mon, Oct 20, 2008 at 9:51 AM, Assaf Flatto <assaf.flatto at ssp.uk.com
> >wrote:
> > > Unless you have two servers with the same local ip - you shouldn't have
> > > any problems.
> > >
> > > i assume that the routing rules you have between routers know which
> range
> > > is behind which router ,
> > > so all you need to do is monitor the second mail server as a regular
> > > server on the your network.
> > >
> > > Can you easily access or ping the server ?
> > >
> > > On Monday 20 October 2008 10:34:06 Alex Dehaini wrote:
> > > > Hi Guys,
> > > >
> > > > Our email server is currently behind a cisco router. The server is
> > >
> > > running
> > >
> > > > a local IP and the router is on a public IP. I installed NSClient and
> > > > use the check_nt plugin to monitor the email server. Here is my host
> > > > file
> > > >
> > > > define host{
> > > >         use                     dns-servers
> > > >         host_name               mailserver
> > > >         alias                   mailserver
> > > >         address                 41.211.31.43
> > > >         }
> > > >
> > > > I have a backup email server behind the same router running a local
> IP.
> > > > I was wondering how I can monitor it. Any ideas?
> > >
> > > --
> > >
> > > Assaf Flatto
> > > SSP Ops Team
> > > Linux System Administrator
> > >
> > >
> > >
> > >
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>
> --
>
> Assaf Flatto
> SSP Ops Team
> Linux System Administrator
>
>
>
>
>
> IMPORTANT . this email and the information in it may be confidential,
> legally
> privileged and/or protected by law. It is intended solely for the use of
> the
> person to whom it is addressed. If you are not the intended recipient,
> please
> notify the sender immediately and do not disclose the contents to any other
> person, use it for any purpose, or store or copy the information in any
> medium.
> Please also delete all copies of this email and any attachments from your
> system.
>
> We cannot guarantee the security or confidentiality of email
> communications. We
> do not accept any liability for losses or damages that you may suffer as a
> result of your receipt of this email including but not limited to computer
> service or system failure, access delays or interruption, data non-delivery
> or
> mis-delivery, computer viruses or other harmful components.
>
> Copyright in this email and any attachments belong to Select Service
> Partner UK
> Limited. Should you communicate with anyone at Select Service Partner UK
> Limited by
> email, you consent to us monitoring and reading any such correspondence.
>
> Nothing in this email shall be taken or read as suggesting, proposing or
> relating to any agreement concerted practice or other practice that could
> infringe UK or EC competition legislation.
>
> Select Service Partner UK Limited is a company registered in England and
> Wales
> (company number 05687183) whose registered office is at 1 The Heights,
> Brooklands, Weybridge. Surrey. KT13 0NY
>
>
>
> -------------------------------------------------------------------------
> This SF.Net email is sponsored by the Moblin Your Move Developer's
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> Build the coolest Linux based applications with Moblin SDK & win great
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> Grand prize is a trip for two to an Open Source event anywhere in the world
> http://moblin-contest.org/redirect.php?banner_id=100&url=/
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> reporting any issue.
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>



-- 
Alex Dehaini
Developer
Site - www.alexdehaini.com
Email - alexdehaini at gmail.com
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