On Sun, May 03, 2015 at 07:23:19PM -0400, Tim Dunphy wrote: > [root at puppet:~] #telnet localhost 5666 This is using TCP > [root at monitor1:~] #nmap -p 5666 puppet.mydomain.com ... > 5666/tcp filtered nrpe This is using TCP > Back on the puppet host I verify that the port is open for UDP: So why are you opening a UDP port? -- rgds Stephen