post the validate
FYI, ./checkservices.php -d for debug mode.
validate is good.
the debug looks like you need to check permissions in /usr/lib64/plugins/
would you please write the exact command needed?
chmod +x /usr/lib64/nagios/plugins/*
looks like its working now 
give it some time. The graph is not real time.
its 35 minutes but NO DATA.
Check if the file exists in the rdd directory and if permissions are correct.
would you please write the exact commands for this?
ls -lah /opt/librenms/rrd/<your device>/ping-perf.rrd
It will show the permission and the file size.
Permissions are perhaps wrong, try:
chmod 775 -R /opt/librenms/rrd
I do that anything else needed?
If it’s not working better, please give these informations again:
- ls -lah /opt/librenms/rrd//ping-perf.rrd
- ./validate.php
- Click on the not working graph, and show the RRD command
Sorry I asked you for the wrong file. On my side I’m using ping not fping, but the graph isn’t working too. I need to check why.