Add Devices to LibreNMS Monitoring Tool

Follow the steps below to add a host to libreNMS:

1. Install SNMP on the server to be monitored

[root@dev ~]# yum -y install net-snmp

2. Backup the snmpd configuration file then edit the / etc / snmpd / snmpd file and add the command line below.

[root@dev ~]# mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.backup

[root@dev ~]# nano /etc/snmp/snmpd.conf

com2sec readonly  default libre
group MyROGroup v2c        readonly
view all    included  .1                               80
access MyROGroup ""      any       noauth    exact  all    none   none
syslocation Location [lon,lat]
syscontact technotes <sysadmin@technotes.id>
#Distro Detection
extend .1.3.6.1.4.1.2021.7890.1 distro /usr/bin/distro

3. Install distro script

[root@dev ~]# curl -o /usr/bin/distro https://raw.githubusercontent.com/librenms/librenms-agent/master/snmp/distro

[root@dev ~]# chmod +x /usr/bin/distro

4. The next step is to open port 161

[root@dev ~]# firewall-cmd --permanent --add-port=161/udp

5. Reload firewall

[root@dev ~]# firewall-cmd --reload

6. Restart snmpd service

[root@dev ~]# systemctl restart snmpd

7. Enable snmpd service

[root@dev ~]# systemctl enable snmpd

8. Go to libreNMS monitoring and click menu Device->Add Device

Add Device