I use zabbix to monitor my network, I have configured it to send SMS (via Modem GSM) via /dev/ttyS0, but... when I send a SMS zabbix return this string
Error open(/dev/ttyS0) [Permission denied]
I have addes zabbix user in uucp group, but just it doesn't work...
I have tryed with
chmod 666 /dev/ttyS0
and it works correctly... (hot water....
now... How can I permit to zabbix user to read and to write in /dev/ttyS0 without use "chmod 666 /dev/ttyS0"??
Because "chmod" command isn't very clean operation....