Nagios Support Forum

scottwilkerson wrote:What operating system are you on? I think you are missing several of the standard MIBs that should have been installed by default when you installed net-snmp

I'm using Ubuntu Server 16.04, the 32-bit version because this machine does not support 64.

Apart from nagios I have not installed any snmp, that may be the problem.
I did not know that the snmp was installed apart from nagios.

You may need to install snmp with

scottwilkerson wrote:You may need to install snmp with

Code: Select all

sudo apt-get install snmp

I have the snmp service installed and I still have the same problem. I have to configure something else?

For licensing reasons, net-snmp package installs only a small number of MIBs in /usr/share/mibs directory. A large number of standard MIBs can be installed using snmp-mibs-downloader package:
Run this to install the SNMP Downloader and download the MIB files. To have the new MIBs recognized by net-snmp, edit /etc/snmp/snmp.conf file and add the following:
That should download and install the missing MIB files on the server.

tgriep wrote:For licensing reasons, net-snmp package installs only a small number of MIBs in /usr/share/mibs directory. A large number of standard MIBs can be installed using snmp-mibs-downloader package:
Run this to install the SNMP Downloader and download the MIB files.

Code: Select all

    $ sudo apt-get install snmp-mibs-downloader
    $ sudo download-mibs

To have the new MIBs recognized by net-snmp, edit /etc/snmp/snmp.conf file and add the following:

Code: Select all

mibs +ALL

That should download and install the missing MIB files on the server.

Thank you very much, I have already solved the status of each port of the switch that I am monitoring.

But I do not understand the uptime that information gives me, I think you have to give me the time (hours, minutes, seconds) that the computer is on and I put something else I do not know how to interpret it.
I leave a capture for you to tell me.


If I execute the following command directly it gives me this (I put a picture):

/usr/local/nagios/libexec/check_snmp -H 192.168.1.17 -C public -o sysUPtime.0

This command may not understand well how this command works and I have to use another one.

The following is a description of what the sysUpTime OID returns when it is polled.

"The time (in hundredths of a second) since the network management portion of the system was last re-initialized."

What you are seeing is a count of the number of tenths of a second the system has been up.

To get an output in Days, Hours, Minutes, Seconds, you would have to find a plugin that displays that data for you and this example I found on the Exchange site looks like it should work for you.
https://exchange.nagios.org/directory/P ... me/details

tgriep wrote:The following is a description of what the sysUpTime OID returns when it is polled.

"The time (in hundredths of a second) since the network management portion of the system was last re-initialized."

What you are seeing is a count of the number of tenths of a second the system has been up.

To get an output in Days, Hours, Minutes, Seconds, you would have to find a plugin that displays that data for you and this example I found on the Exchange site looks like it should work for you.
https://exchange.nagios.org/directory/P ... me/details

Thanks.
I'm going to try that plugin, but in what folder do I have to put it?

/usr/local/nagios/libexec

In the same folder as all of the other plugins.

/usr/local/nagios/libexec