Connection problems using SNMP and NagiosXI

[mdzx111]

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.

[mguthrie]

So just to verify, you're running:

Code: Select all

./check_snmp_storage.pl -H x.x.x.x -C public -m "^/$" -w 2 -c 4

Lets try a different approach. It appears to be connecting ok, so lets try this:

Code: Select all

./check_snmp_storage.pl -H x.x.x.x -C public --v2c -m "/boot" -w 2 -c  

[mdzx111]

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]#

[scottwilkerson]

[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

Code: Select all

cd /usr/local/nagios/libexec
./check_snmp_storage.pl -H 192.168.1.171 -C public --v2c -m "/boot" -w 2 -c 4

If that works, try

Code: Select all

cd /usr/local/nagios/libexec
./check_snmp_storage.pl -H 192.168.1.171 -C public --v2c -r -m "/" -w 2 -c 4

[mdzx111]

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...

[scottwilkerson]

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

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snmpwalk -v2c -c public 192.168.1.171 1.3.6.1.2.1.25.2.3.1.3

Thanks

[mdzx111]

[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]#

[scottwilkerson]

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

[mdzx111]

How do I do that?

[scottwilkerson]

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.