<HTML> <HEAD> <TITLE>NRPE Problems</TITLE> </HEAD> <BODY> Hi everyone. I just configured my Nagios box to start monitoring with NRPE. When I run check_nrpe –H 127.0.0.1 it resolves the NRPE version as expected. Since my monitoring server is colocated and I plan to monitor hosts behind firewalls I setup a test server behind my firewall at home for testing purposes. I have TCP/5666 forwarded to the internal IP address of my test server. That same port is also open on my Nagios server as well. I am running NRPE on my Windows server. The version of NRPE running can be found here: <a href="http://tinyurl.com/24o3h3">http://tinyurl.com/24o3h3</a> When I run check_nrpe –H <Home IP Address> I get a socket timeout error. I did a netstat on both servers and it looks like there is a connection. TCP gwong-srvr1:5666 gwong-srvr1:0 LISTENING TCP gwong-srvr1:netbios-ssn gwong-srvr1:0 LISTENING TCP gwong-srvr1:5666 <Nagios IP>:36422 CLOSE_WAIT TCP gwong-srvr1:5666 <Nagios IP>:38766 CLOSE_WAIT TCP gwong-srvr1:5666 <Nagios IP>:38907 CLOSE_WAIT TCP gwong-srvr1:5666 <Nagios IP>:38909 CLOSE_WAIT root@nagios:~# netstat -at | grep nrpe tcp 0 0 *:nrpe *:* LISTEN tcp 0 0 <Nagios IP>:38913 <Home IP>:nrpe ESTABLISHED root@nagios:~# netstat -at | grep nrpe tcp 0 0 *:nrpe *:* LISTEN tcp 0 0 <Nagios IP>:38913 <Home IP>:nrpe FIN_WAIT2 Any ideas why this won’t work? Thanks. </BODY> </HTML>