WARNING: SNMP error: No response from remote host "IP"

[npolovenko]

@s_dimzon , All files in /var/lib/mrtg folder are temporary. Go ahead and delete them all, it's not going to affect the system. Generally, /usr/local/nagios/share/perfdata/ is the folder where historic rrd data is stored. You may want to backup that whole folder for now.
You said you reran the following command:

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LANG=C LC_ALL=C /usr/bin/mrtg /etc/mrtg/mrtg.cfg -debug=cfg,base &> /tmp/mrtg.txt

Can you upload the /tmp/mrtg.txt file again?

Also, please run the following:

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LANG=C LC_ALL=C /usr/bin/mrtg &>> /tmp/mrtg.txt

Again, please upload the /tmp/mrtg.txt file. This will give us information on the version of mrtg you're running.
Finally, you may try to delete the service in question, and rerun the switch wizard but select only that particular port. That may automatically recreate the RRD file.

[s_dimzon]

Hi @npolovenko,

i sent you a Private message.

i am wondering if I still need to setup a MRTG on the new server, Is that also a pre-requisite for this part? or is the plugin not compatible with the current version of Centos? I am using Centos 7 64bit

Are there also pre-requisite besides the documentation given?

[npolovenko]

@s_dimzon, Please navigate to:

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cd /var/lib/
and run:
chmod -R 777 mrtg
chmod apache,nagios mrtg

Also, please delete all files inside the /var/lib/mrtg folder.
When done, you can restart nagios with:

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service nagios restart
service httpd restart
service crond restart
service npcd restart

After that please allow Nagios up to 30 min to recreate new RRD's.

i am wondering if I still need to setup a MRTG on the new server, Is that also a pre-requisite for this part? or is the plugin not compatible with the current version of Centos? I am using Centos 7 64bit

Your version of mrtg is ok. And yes, the plugin should be compatible with CentOS 7.

[s_dimzon]

Hi @npolovenko

I ran these commands:
cd /var/lib/
and run:
chmod -R 777 mrtg

but this one seems invalid, I having an error: chmod apache,nagios mrtg
"chmod: invalid mode: âapache,nagiosâ
Try 'chmod --help' for more information."

I'd try to do chown apache:nagios mrtg, restart services and waited 2 hrs but rrd was not recreated
also chown apache:apache mrtg, then restart services, still the same

[s_dimzon]

Hi!

I got it working!!

just for history purposes, incase anyone might encounter. I'v updated the check_mrtgtraf plugin. I used the one for Centos6
here's the link:
https://centos.pkgs.org/6/epel-x86_64/n ... 4.rpm.html

We can close this now. Thank you very much!

[npolovenko]

@s_dimzon , Thanks for letting other users know how you got this to work! I will close this thread.