Hey there.. i am having a problem with my NRPE plugins when using argument maros. Am i making a syntax error or what? I have looked at it too long today to tell :) I have confirmed the package was configured with command args enabled and I did turn on dont_blam_nrpe. As stated later, the plugin and nrpe work great if i take out the argument macro and do a static command and supply the plugin with static arguments via nrpe_local.cfg. I have copied snippets of relevant files: ############ SERVER ############## (host config) check_command check_nrpe!check_smartmon!/dev/hda ############ CLIENT ################ (/etc/nagios/nrpe.cfg dont_blame_nrpe=1 (also have arguments compiled in) (/etc/nagios/nrpe_local.cfg) command[check_smartmon]=/usr/bin/sudo /usr/lib/nagios/plugins/check_smartmon -d $ARG1$ ###the following works if i edit $ARG1$ argument out the host config ###command[check_smartmon]=/usr/bin/sudo /usr/lib/nagios/plugins/check_smartmon -d /dev/hda (/var/log/syslog) Jun 12 18:44:21 backup nrpe[12489]: Host is asking for command 'check_smartmon' to be run... Jun 12 18:44:21 backup nrpe[12489]: Running command: /usr/bin/sudo /usr/lib/nagios/plugins/check_smartmon -d Jun 12 18:44:22 backup nrpe[12489]: Command completed with return code 2 and output: Jun 12 18:44:22 backup nrpe[12489]: Return Code: 2, Output: NRPE: Unable to read output Jun 12 18:44:22 backup nrpe[12489]: Connection from <a href="http://192.168.222.118">192.168.222.118</a> closed. thanks much! -- Lyle Scott, III