On Fri, May 01, 2015 at 01:32:28AM -0400, Tim Dunphy wrote: > [root at ops:~] #/usr/local/nagios/libexec/check_nrpe -H localhost > NRPE v2.15 > > [root at ops:~] #grep only_from /etc/xinetd.d/nrpe > only_from = 127.0.0.1 216.120.248.126 > > And I do have port 5666 open on the security group for this host. It sounds like you've got NRPE up on your AWS system, so I think you might need to take a closer look at your security groups to make sure it is allowing the NRPE port in from the source you're checking from. You could always check with a check_nrpe from another host in the same VPC if you want to make sure its not NRPE configuration-related. -- Jonathan Billings <billings at negate.org>