Greetings, Solaris 10/Solaris 9 nrpe version 2.8b1 mailq version 1.4.3 nrpe 2.8b1 From the nagios server as nagios: $ ./check_nrpe -H host1 -p 5666 -c check_mailq NRPE: Unable to read output $ ./check_nrpe -H host1 -p 5666 -c check_disk1 DISK OK - free space: / 1356 MB (33% inode=83%);| /=2640MB;3632;3834;0;4036 $ ./check_nrpe -H host1 -p 5666 -c check_swap SWAP OK - 100% free (6146 MB out of 6146 MB) |swap=6146MB;1229;614;0;6146 $ ./check_nrpe -V ./check_nrpe: illegal option -- V NRPE Plugin for Nagios Copyright (c) 1999-2007 Ethan Galstad (<a href="mailto:nagios@nagios.org">nagios@nagios.org</a>) Version: 2.8b1 Last Modified: 03-14-2007 From the offending host1 as nagios: $ pwd /usr/local/nagios/libexec $ ./check_mailq -w 5 -c 10 -M sendmail OK: mailq is empty|unsent=0;5;10;0 $ grep mailq ../etc/nrpe.cfg command[check_mailq]=/usr/local/nagios/libexec/check_mailq -w 5 -c 10 -M sendmail $ mailq /var/spool/mqueue is empty Total requests: 0 $ ./check_mailq -V check_mailq (nagios-plugins 1.4.3) 1.6 The nagios plugins come with ABSOLUTELY NO WARRANTY. You may redistribute copies of the plugins under the terms of the GNU General Public License. For more information about these matters, see the file named COPYING. $ ./check_disk -V check_disk (nagios-plugins 1.4.6) 1.84 $ ./check_swap -V check_swap (nagios-plugins 1.4.3) 1.55 Question 1: Anyone seen the 'Unable to read output' and resolved it? Question 2: check_mailq isn't part of plugins-1.4.9 on my solaris compile, any chance it returns? thanks in advance, -Marc