Opensearch\Elasticsearch

Install prereqs

apt-get install libjson-perl libfile-slurp-perl liblwp-protocol-https-perl libmime-base64-perl

pkg install p5-JSON p5-File-Slurp p5-LWP-Protocol-https p5-MIME-Base64

cpanm JSON Libwww File::Slurp LWP::Protocol::HTTPS MIME::Base64

SNMP Extend

1. Download the script onto the host.

   wget https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/opensearch -O /etc/snmp/opensearch
   

2. Make it executable

   chmod +x /etc/snmp/opensearch
   

3. Update your snmpd.conf.

   Can be directly or via cron. It recommended to use cron if under heavy load it time out waiting for Opensearch.

   If not using cronIf using cron

   extend opensearch /etc/snmp/opensearch
   

   extend opensearch /bin/cat /var/cache/opensearch.json.snmp
   

   Add this entry to the root crontab. It is necessary, because it likely time out otherwise. Use */1 if you want to have the most recent statistics at each poll. Use */5 for exactly a 5 minute interval.

   */5 * * * * /etc/snmp/opensearch -w -q
   

4. Restart snmpd on your host.

   sudo systemctl restart snmpd
   

5. Enable it or wait for the device to be re-disocvered.