Configuration on PiKVM

PiKVM enable write mode

rw

Install net-snmp and nano (you can also use vim instead of nano)

pacman -S net-snmp nano

Configure snmpd

Paste content from snmpd.conf to /usr/share/snmp/snmpd.conf

nano /usr/share/snmp/snmpd.conf

Paste content from sh file to /opt folder and make executable

nano /opt/snmp-cpu-temp.sh
chmod +x /opt/snmp-cpu-temp.sh

Because PiKVM runs in read only mode the script will fail. We need to link the cache file to tmp folder

rm /var/net-snmp/.snmp-exec-cache #in case the file already exists
ln -s /tmp/.snmp-exec-cache /var/net-snmp/.snmp-exec-cache

Restart SNMPD

systemctl restart snmpd.service

PiKVM enable read only mode

ro

Configuration on PRTG WebUI

CPU temperature

Add sensor
SNMP Custom
Name = CPU Temp
OID = .1.3.6.1.2.1.25.1.8
Channel Name = Temperature
Unit String = °C