Scott, Paste the content of /etc/xinetd.d/nrpe file here. Please make sure when you telnet from nagios server to remote monitoring host on 5666, is the connection closed automatically after you execute the command or you yourself did close the connection by pressing ctrl + ] To avoid getting, "could not complete ssl hand shake" please follow this. If you are monitoring the intranet host behind the firewall and sure that you dont need the ssl then go again and compile nrpe plugins with out the ssl support. ./configure -disable-ssl or --disable-ssl (not sure about it, please see ./configure --help for more info) and then make all , make install. hope this helps. please let me know.. <div class="gmail_quote"> On Fri, Jun 20, 2008 at 5:59 PM, <<a href="mailto:jmurray@whoi.edu">jmurray@whoi.edu</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div><div></div><div class="Wj3C7c">Quoting Scott Ackerman <<a href="mailto:lists@scott-ackerman.com">lists@scott-ackerman.com</a>>: > Shankar, > > thanks for the help. The nrpe daemon is running on the remote server. There > were no ./configure problems on the remote server, and the only "warning" I > received when I ran ./configure on the monitoring host was "checking for > Kerberos include files... could not find include files" > > When I ran telnet from the monitoring host to the server I got the > following: > > trying <ip address> > connected to <ip address> > escape character is '^}'. > connection closed by foreign host. > > So it seems as if the ports are opened between the two. Firewall access is > allowed between the two (obviously or telnet would not have worked). > > But I am still stuck in the same spot witht the "CHECK NRPE: Error - Could > not complete SSL handshake." > > _____ > > From: <a href="mailto:asam30@gmail.com">asam30@gmail.com</a> [mailto:<a href="mailto:asam30@gmail.com">asam30@gmail.com</a>] > Sent: Friday, June 20, 2008 1:25 AM > To: Scott Ackerman > Subject: Re: [Nagios-users] NRPE Install Error > > > Please make sure ./configure went properly and complied nrpe without any > errors. Also check if the nrpe daemon running, ps -ef | grep nrpe or ps -ef > | grep 5666 > > from the nagios server, try > telnet <ip-of-the-monitoring-host> 5666 > > you can also check if the firewall access allow between the two > servers(nagios and remote host). > > Hope this helps > > -Shankar > > > On 6/20/08, Scott Ackerman <<a href="mailto:lists@scott-ackerman.com">lists@scott-ackerman.com</a>> wrote: > > > I have successfully installed NRPE on the remote server (FC6 box). I have > run the check_nrpe "tests" to verify that everything is working correctly. > On the monitoring server however (CentOS 5.1 box) when I run > "/usr/local/nagios/libexec/check_nrpe -H (IP address of remote server), I > get the following error: > > CHECK_NRPE: Error - Could not complete SSL handshake. > > the only "negative" reponse that I got when I ran ./configure was "checking > for Kerberos include files... could not find include files. Sorry but I am > new at this, but I am stumped at this point. The only thing that the > documentation says is what to check if you get a "timeout error". > > Nagios v 3.02 > > Scott Ackerman > 1212 Baker Street > Fort Collins, Colorado 80524 > Office - (970) 689-3999 > Cell - (970) 231-9035 > Fax - (888) 290-2131 </div></div>> <a href="http://www.us-able.com" target="_blank">www.us-able.com</a> <<a href="http://www.us-able.com/" target="_blank">http://www.us-able.com/</a>> <div class="Ih2E3d">> > "Design is not just what it looks like and feels like. Design is how it > works" - Steve Jobs > > > ------------------------------------------------------------------------- > Check out the new SourceForge.net Marketplace. > It's the best place to buy or sell services for > just about anything Open Source. > <a href="http://sourceforge.net/services/buy/index.php" target="_blank">http://sourceforge.net/services/buy/index.php</a> > _______________________________________________ > Nagios-users mailing list > <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> > ::: Please include Nagios version, plugin version (-v) and OS when reporting > any issue. > ::: Messages without supporting info will risk being sent to /dev/null > > > > > > -- > Shankar Asam > </div>Scott, In case you haven't already checked...make sure that in the /etc/services line you have port 5666 specified correctly. If you are running nrpe from xinetd make sure that the only_from = is set correctly. Check the logs for obvious errors and if that still yields nothing valuable, then you may want to look at tcpdump and or strace to see what's going on at a lower level. -Jonathan Murray Linux Administrator W.H.O.I ---------------------------------------------------------------- This message was sent using IMP, the Internet Messaging Program. <div><div></div><div class="Wj3C7c"> ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. <a href="http://sourceforge.net/services/buy/index.php" target="_blank">http://sourceforge.net/services/buy/index.php</a> _______________________________________________ Nagios-users mailing list <a href="mailto:Nagios-users@lists.sourceforge.net">Nagios-users@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/nagios-users" target="_blank">https://lists.sourceforge.net/lists/listinfo/nagios-users</a> ::: Please include Nagios version, plugin version (-v) and OS when reporting any issue. ::: Messages without supporting info will risk being sent to /dev/null </div></div></blockquote></div> -- Shankar Asam