Nagios / NRPE "NRPE: Unable to read output"

Mon, 20 Aug 2012 16:23:38 +0000

New server, copying over some existing NRPE-based checks in Zenoss, but they all error out with “NRPE: Unable to read output” despite all of the commands actually working. /etc/sudoers has the nagios user listed properly, so what’s the problem?

The problem is this line in /etc/sudoers:

Defaults requiretty

Comment that line out, restart nrpe and it works.

Unable to Read Output on Evan Hoffman

Nagios / NRPE "NRPE: Unable to read output"