check_nrpe problem with dynamic ip

[Assaf Flatto]

you can write a simple script that query the new dns/ip address of the nagios 

 ping nagios.foo.com |head -1 | awk '{print $3}' |tr -d '(' ')'

this will give the ip ,take the ip and replace that in the nrpe.cfg 

and run the script in the cron every 2 days to make sure it gets the new ip .

Assaf

On Monday 01 September 2008 10:20:32 J. Bakshi wrote:
> Assaf Flatto wrote:
> > On Monday 01 September 2008 09:57:30 J. Bakshi wrote:
> >> Hello All,
> >>
> >> The remote server where I have installed nrpe, the /etc/nagios/nrpe.cfg
> >> has allowed_hosts=127.0.0.1,122.161.137.217
> >>
> >> 122.161.137.217 is the IP of my local nagios monitoring machine.
> >> I put this IP after checking my machine by whatismyip.com
> >> My ISP provides dynamic IP. Is there any way to tell nagios to permit
> >> nrpe connection from
> >> all ?
> >>
> >> thanks
> >
> > Is your nagis machine ip changes all the time ?
> > or is it your devices Ip that is changing ?
>
> Hi Assaf,
> thanks for your kind response.
>
> yes the local machine where the nagios is installed has dynamic address.
> The Ip changes after every 2/3 days.
> Hence I have to change the "allowed_hosts=" parameter accordingly at the
> remote machine running nrpe daemon.
> How can I solve this problem ?
>
> thanks
>
> > You do not need to tell nagios to permit the connection . you need to
> > tell the nrpe on all the hosts you are checking that the nagios host's ip
> > has been changed and has a new .
> >
> > As far as i know there is no automated plugin , what you can do is write
> > a script to query the dns of your nagios and replace the existing IP with
> > the new result .
> >
> > Assaf
> >
> >
> >
> >
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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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