check snmp problem and cant find the reason

[jgking at packetstorm.org]

Ok i have 2 linux systems, one i test on and the other is where i deploy 
after testing. On the test system everything works just fine. On the 
production system nagios cannot get a return value from the snmp daemon.


OS : Redhat Linux 7.2
SNMP : net-snmp rpm


Heres what I have checked so far:

1. Iptables : fine, for kicks i zeroed them out and still got no response
2. Checked the snmpd.conf file. exact same file (different community 
string though). No problems
3. Tried the net-snmp snmpget and walk commands like so (AS the nagios ID)

snmpwalk localhost -c ******* oid

which worked fine.

4. So i rechecked my cfg files (checkconfig and services.cfg). Heres an 
example entry for the services file

It works so its not something related to the userid.
check_snmp_str!localhost!.1.3.6.1.4.1.2021.10.1.101.1!""!******!"STRING: "

I see no problems.

5. So as the nagios id i then run the libexec/check_snmp program passing 
it the above information. It works as well

6. Recompiled with debug0 and debug5, they dont give that much info. What 
debug level shows me the function call along with the data passed and the 
return data recieved?


So what could be causing the nagios client to not be able to connect to 
the snmpdaemon?

All im getting back on this box is "SNMP problem - No data recieved from 
host "

Oh i just thought of something else, the test box runs under the nagios 
id, the production box a different id. In both cases thouhg i can su to 
the id and run the check_snmp script without a hitch, just not on the 
production box from nagios.


Any ideas?

Thanks! 







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