Mark, May I ask, when you run your NRPE in daemon mode as you've shown us here, what happens when you just run: # ./check_nrpe -H x.x.x.x on the host, i.e. with no other arguments than the hostname? Could you check to see if you get an error message sent do daemon.error in your syslog: Jul 14 16:36:52 cairns daemon:err|error nrpe[532718]: Error: Request packet had invalid CRC32. Jul 14 16:36:52 cairns daemon:err|error nrpe[532718]: Client request was invalid, bailing out... If NRPE was working, it should respond with: NRPE V(version number) Thanks, Alex <div>On 7/19/06, Mark Worrad <<a href="mailto:mark@abtgroup.com.au"> mark@abtgroup.com.au</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">My version of NRPE NRPE - Nagios Remote Plugin Executor Copyright (c) 1999-2006 Ethan Galstad (<a href="mailto:nagios@nagios.org">nagios@nagios.org</a>) Version: 2.5.1 Last Modified: 04-09-2006 License: GPL v2 with exemptions (-l for more info) SSL/TLS Available: Anonymous DH Mode, OpenSSL 0.9.6 or higher required *************************************************************** ** POSSIBLE SECURITY RISK - TCP WRAPPERS ARE NOT AVAILABLE! ** ** Read the NRPE SECURITY file for more information ** *************************************************************** My entry in inetd.conf with no ssl nrpe stream tcp nowait nagios /usr/local/nagios/nrpe -n -c /usr/local/ nagios/nrpe.cfg --inetd bash-2.05b# ./check_nrpe -H x.x.x.x -n -c check_disk_live CHECK_NRPE: Response packet had invalid CRC32. I tried again with ssl nrpe stream tcp nowait nagios /usr/local/nagios/nrpe -c /usr/local/nag ios/nrpe.cfg --inetd bash-2.05b# ./check_nrpe -H <a href="http://203.98.93.34">203.98.93.34</a> -c check_disk_live CHECK_NRPE: Error - Could not complete SSL handshake. The only way i get this to work is to start it in Daemon mode bash-2.05b# /usr/local/nagios/nrpe -c /usr/local/nagios/nrpe.cfg -d bash-2.05b# ./check_nrpe -H <a href="http://203.98.93.34">203.98.93.34</a> -c check_disk_live DISK OK - free space: /live 47832 MB (19%);| /live=208680MB;230860;243686;0;2565 12 I can have the daemon running with or without ssl and check_nrpe with or without ssl works fine does any one have any ideas on why it will not work when run from inetd.conf. Do i have to have tcpwrappers installed for this to work, if so has anyone got tcpwrappers working on aix5.3 ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash <a href="http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV">http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV </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"> 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 </blockquote></div>