Nagios Support Forum

Hello,
I am VERY new to Linux and NagiosXI. I am using a virtual install of NagiosXI. My test box is a virtual Linux CentOS 5.8 64 bit and GNOME 2.16.0.

I am trying to get NagiosXI to be able to monitor the test CentOS box using only SNMP.

I follow the instructions in the PDF located here:

http://library.nagios.com/library/produ ... using-snmp

When I try to do the test for SNMP connectivity from the NagiosXI machine to the CentOS box using Putty, I get the following error:

Requested table is empty or does not exist.

Please help and bear with me since I'm very new using the command line and Linux in general.

Thank you.

So just to verify, you're running:
Lets try a different approach. It appears to be connecting ok, so lets try this:

Below is what I get when I try both....

Just so we're both on the same page, this is from the NagiosXI box and 192.168.1.171 is the CentOS test box.


[root@localhost ~]# ./check_snmp_storage.pl -H 192.168.1.171 -C public -m "^/$" -w 2 -c 4
-bash: ./check_snmp_storage.pl: No such file or directory
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]#
[root@localhost ~]# cd /usr/local/nagios/libexec
[root@localhost libexec]# ./check_snmp_storage.pl -H 192.168.1.171 -C public -m "^/$" -w 2 -c 4
ERROR: Description/Type table : Requested table is empty or does not exist.
[root@localhost libexec]# ./check_snmp_storage.pl -H 192.168.1.171 -C public --v2c -m "/boot" -w 2 -c
Argument "" isn't numeric in numeric lt (<) at ./check_snmp_storage.pl line 275.
warn < crit if type=pu
Usage: check_snmp_storage [-v] -H <host> -C <snmp_community> [-2] | (-l login -x passwd [-X pass -L <authp>,<privp>]) [-p <port>] -m <name in desc_oid> [-q storagetype] -w <warn_level> -c <crit_level> [-t <timeout>] [-T pl|pu|bl|bu ] [-r] [-s] [-i] [-e] [-S 0|1[,1,<car>]] [-o <octet_length>]
[root@localhost libexec]#

mdzx111 wrote:[root@localhost libexec]# ./check_snmp_storage.pl -H 192.168.1.171 -C public --v2c -m "/boot" -w 2 -c

You got the last error because you didn't have a value after -c

Run If that works, try

Below is what happens when I try to run the first command again.

[root@localhost libexec]# ./check_snmp_storage.pl -H 192.168.1.171 -C public --v2c -m "/boot" -w 2 -c 4
Unknown storage : /boot : ERROR
[root@localhost libexec]# cd /usr/local/nagios/libexec
[root@localhost libexec]# ./check_snmp_storage.pl -H 192.168.1.171 -C public --v2c -m "/boot" -w 2 -c 4
Unknown storage : /boot : ERROR
[root@localhost libexec]#


Help please...

Can you run the following so we know what devices are even possible Thanks

[root@localhost libexec]# snmpwalk -v2c -c public 192.168.1.171 1.3.6.1.2.1.25.2.3.1.3
HOST-RESOURCES-MIB::hrStorageDescr = No more variables left in this MIB View (It is past the end of the MIB tree)
[root@localhost libexec]#

This means that your client machine isn't offering this data via it's snmp service

You might need to make sure the snmp configuration on the client isn't being too restrictive

How do I do that?

It would be in the configuration for snmp on 192.168.1.171

I can't really tell you how to set it up because it would depend on your setup and what kind of machine this is, etc.