KWh meter setup

The remote access to the KWh meter depends on Wireguard Wireguard and the kWh meter having a fixed IP.

• IP address: 192.168.6.111
• Port: 161 (snmp)
• Protocol: SNMPv2 public/community string standard

MRTG setup

This should be fixed - i.e. not run as root !!

   [Unit]
   Description=Multi-router Traffic Grapher
   After=syslog.target

   [Service]
   Environment=LANG=C
   ExecStart=/usr/bin/mrtg --daemon 
   Type=forking
   SuccessExitStatus=0 1

   [Install]
   WantedBy=multi-user.target

Config file:

     # This file is for use with mrtg-2.5.4c
     WorkDir: /var/www/mrtg
     WriteExpires: Yes
                 
     Title[L1]: Phase 1 power
     PageTop[L1]: <H1>L1</H1>
     Target[L1]: 1.3.6.1.4.1.31034.2.8.1.5.1&1.3.6.1.4.1.31034.2.8.1.5.1:public@IPKWHMETER:161
     MaxBytes[L1]: 50000
     YLegend[L1]: Ampere
     ShortLegend[L1]: A
     Options[L1]: gauge,nopercent,noo
     Factor[L1]: 0.01
     YTicsFactor[L1]: 0.01
     
     Title[L2]: Phase 2 power
     PageTop[L2]: <H1>L2</H1>
     Target[L2]: 1.3.6.1.4.1.31034.2.8.1.5.2&1.3.6.1.4.1.31034.2.8.1.5.2:public@IPKWHMETER:161
     MaxBytes[L2]: 50000
     YLegend[L2]: Ampere
     ShortLegend[L2]: A
     Options[L2]: gauge,nopercent,noo
     Factor[L2]: 0.01
     YTicsFactor[L2]: 0.01
     
     Title[L3]: Phase 3 power
     PageTop[L3]: <H1>L3</H1>
     Target[L3]: 1.3.6.1.4.1.31034.2.8.1.5.3&1.3.6.1.4.1.31034.2.8.1.5.3:public@IPKWHMETER:161
     MaxBytes[L3]: 50000
     YLegend[L3]: Ampere
     ShortLegend[L3]: A
     Options[L3]: gauge,nopercent,noo
     Factor[L3]: 0.01
     YTicsFactor[L3]: 0.01
     
     Title[Power]: Power
     PageTop[Power]: <H1>Power</H1>
     Target[Power]: 1.3.6.1.4.1.31034.2.8.1.5.1&1.3.6.1.4.1.31034.2.8.1.5.1:public@IPKWHMETER:161 + 1.3.6.1.4.1.31034.2.8.1.5.2&1.3.6.1.4.1.31034.2.8.1.5.2:public@IPKWHMETER:161 + 1.3.6.1.4.1.31034.2.8.1.5.3&1.3.6.1.4.1.31034.2.8.1.5.3:public@IPKWHMETER:161
     MaxBytes[Power]: 200000
     YLegend[Power]: Ampere
     ShortLegend[Power]: A
     Options[Power]: gauge,nopercent,noo
     Factor[Power]: 0.01
     YTicsFactor[Power]: 0.01

Webserver config in ```/etc/apache2/sites-enabled/mrtg.conf```

     Alias /mrtg      /var/www/mrtg
     
     DirectoryIndex index.html
     <Directory /var/www/mrtg>
     Options All +Indexes
     order deny,allow
     allow from all
     Require all granted
     </Directory>