I set this plugin to check the disk space in our server.
If I execute by command line ./check_disk_remote -H nagios(at)10.100.xxx.xxx -e ssh -w90 -c 95 he works fine, but when I use in nagios he gives me back an UNKNOWN error.
(nagios uis the user we have set in the pre-shared key on remote host)
If I put the -v (verbose) option I receive: stderr = 65280
What is the problem? How can I check which user uses nagios to execute this script?