<html><head><style type="text/css"></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt">Hi I am using CentOS 5 as my Operating System and installed Nagios-3.2.3, with nagios-plugins-1.4.15. initial configuration is working fine and i am able to use nagios in my browser by typing <a target="_blank" href="http://localhost/nagios">http://localhost/nagios</a>. Problem starts when i try to configure pnp4nagios-0.6.11. when i make the necessary adjustments in nagios.cfg and commands.cfg i am unable to restart nagios service and it gives me error related to Here are some changes that I have made after installing pnp4nagios process_performance_data=1 host_perfdata_command=process-host-perfdata service_perfdata_command=process-service-perfdata host_perfdata_file_mode=a sercvice_perfdata_file_mode=a host_perfdata_file_processing_interval=30 service_perfdata_file_procecssing_interval=30 host_perfdata_file_processing_command=process-host-perfdata-file service_perfdata_file_processing_command=process-service-perfdata-file & following are the changes that I have made in /objects/commands.cfg define command { command_name process-service-perfdata command_line /usr/bin/pe rl /usr/local/pnp4nagios/libexec/process_perfdata.pl } define command { command_name process-host-perfdata command_line /usr/bin/perl /usr/local/pnp4nagios/libexec/process_perfdata.pl -d HOSTNAME } <div> ok now when i restart nagios it gives me error on line 420 of my commands.cfg which is "command_name process-service-perfdata" can sum1 please help me!!!!! </div>Khurram Aziz Khalid<div> </div> </div> </body></html>