Monitor Windows 2003 using nagios + SNMP

[arly arly]

HI Richard,

thank you for comment.

comunity string I set up as for machines I have it works OK. Comunity
string is same, and let say it is "niceday" but it is same on all
machines I have plan to monitor.

I tried all, but it I am really stuck, same configuration ( which I
btw just copy /paste to machines behind firewal  ) works corretly on
machines which are direct accessable from nagios server.

I have port 161 open.

Thank you all for comment, I need to hear your experiences regarding this

Kind regards,

Arlytex



2009/8/6 Richard Remington <rremington at messagevision.com>:
> Hi Arlytex,
>
> Is it possible that the SNMP password (community string) is not 'public' on your Windows 2003 servers that are behind the firewall? Perhaps if they're behind a firewall, someone also went to the trouble to change the SNMP community string (password) to reach them?
>
> Regards,
>
> Richard
>
> arly arly wrote:
>> Hi all,
>>
>> I am using nagios3 and I would like an monitoring system for my
>> network. I have cca 10 hosts in "my network" but they are behind
>> firewall.
>> I mean in "my network" which is not exposed to outside world, some
>> machines are behidn firewals in.
>>
>> Critical machines run Windows 2003 server OS, and I tried to use
>> NSClient++, in combination with check_nrpe ( I tried both ports 5666
>> and 12489 ) and I can get information from windows servers--checking
>> them with check_nrpe looks ok.
>>
>> Then I realized that with SNMP I could better informations ( tested on
>> machines directly accessible from nagios server ) and decided to
>> copy/paste working SNMP configuration from windows machines and add
>> necessary servers to nagios conf files and have all unified via SNMP
>> monitoring. I am using *.pl scripts from
>> http://nagios.manubulon.com/snmp_storage.html and for machines
>> directly accessible all is ok
>>
>> But I got into troubles for servers behind firewall :) Ports 161/162 (
>> UDP/TCP ) are open on firewal to windows servers
>>
>> When I run
>> ./check_snmp_storage.pl -H AAA.AAA.AAA.AAA -C public -m ^C: -w 80 -c
>> 90 ( AAA.AAA.AAA.AAA address of win. machine behind firewal ) I am
>> getting an error
>>
>> ERROR: Description/Type table : No response from remote host 'AAA.AAA.AAA.AAA'.
>> what means no return information from server. First I suspected on
>> connectivity and I moved SNMP to listen on another port, run command
>> ./check_snmp_storage.pl -H AAA.AAA.AAA.AAA -C public -m ^C: -w 80 -c
>> 90 --port 2222
>> but same issue ( this process works when I test it on machines which
>> are not behind firewall )
>> On windows machine netstat -a shows
>>
>>  UDP    server:snmp        *:*
>>  UDP    server:snmptrap    *:*
>>
>> what means snmp is listenning ( same configuration of SNMP service
>> works ok for machines which are in same net as nagios server )
>>
>> I am suspection it could something to do with SNMP client / SNMP
>> protocol how it works, as I am getting correct response when I sent it
>> to 5666 + check_nrpe.
>>
>> Any reasonable hint what I could check will very useful, so thank you
>> in advance. I am preety lost I do not really know what to check more
>> in order to resolve this.
>>
>> Operating system I use for nagios server is Debian stable 5, I am very
>> sure configuration of SNMP on Windows servers is correct. HW I am want
>> to monitor are HP Proliants DL360 G5, DL380 G5
>>
>> Kind regards,
>>
>> Arlytex
>>
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>
>
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