[omd-users] PNP4Nagios not working for slave OMD server

Peter Shankland pshankland at gmail.com
Thu May 7 22:11:36 CEST 2015

Hi Marcel,

Thanks for the reply. I sent the request to OMD mailing list because it is
OMD I installed rather than a separate check_mk install however you 100%
pointed me in the right direction so thanks very much!! :)

Just in case anyone else gets the same issue as me...

I followed https://mathias-kettner.de/checkmk_wato_distributed.html to
create my slave server and it appears to be wrong. The screenshot of the
slave URL prefix shows as '' however this needs to just
be '/slaveSite1/'. Following the link that Marcel sent you can then create
the /etc/apache2/conf.d/multisite_proxy.conf file and substitute
/slaveSite1/ for /paris/. After a restart of httpd all is good with

Thanks Marcel!!

On 7 May 2015 at 20:07, Marcel Schulte <schulte.marcel at gmail.com> wrote:

> Hi Peter,
> you're writing to the OMD list but your issue is not OMD related but
> Check_MK - you should ask such things to the Check_MK list...
> But you should also read
> http://mathias-kettner.com/checkmk_multisite_modproxy.html carefully and
> will find a solution to your issue ;-)
> Regards,
> Marcel
> Peter Shankland <pshankland at gmail.com> schrieb am Do., 7. Mai 2015 um
> 21:04 Uhr:
>> Hi,
>> I have now managed to get a slave OMD server connected to a master server
>> both running CentOS 6.6 64Bit. I have a number of hosts defined via the
>> master to the slave and all the services are working fine.
>> However, I have a problem with PNP4Nagios on the slave server when
>> viewing via the master on Check_MK. I am getting the error "Received an
>> unexpected response while trying to display the PNP-Graphs. Maybe there is
>> a problem with the authentication."
>> When I click on the PNP4Nagios icon next to a host or service it then
>> shows the following:
>> The requested URL /Master/check_mk/
>> was not found on this
>> server.
>> So, it appears as though the URL creation is wrong. When I go directly to
>> the slave install of PNP4Nagios it works fine.
>> Any suggestions?
>> Thanks.
>> _______________________________________________
>> omd-users mailing list
>> omd-users at lists.mathias-kettner.de
>> http://lists.mathias-kettner.de/mailman/listinfo/omd-users
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