Monitor 2nd mail server behind natted router

[Assaf Flatto]

Can you access that ip from the nagios server (ping it ?)

It seems to me the issue is with the routing , not with nagios.
you need to define in your routers the routing tables to the natted IP's  , and then define the host 
you wish to check .


On Monday 20 October 2008 12:21:41 Alex Dehaini wrote:
> 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
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> >
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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
 
 

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