<html><head> <meta http-equiv="Content-Type" content="text/html; charset=Windows-1252"><title>localhost DOWN messages, return code 127 is out of bounds</title> </head> <body> Hello, Just installed nagios 3.2.1 following the docs at <a href="http://nagios.sourceforge.net/docs/3_0/quickstart.html">http://nagios.sourceforge.net/docs/3_0/quickstart.html</a> Everything starts up normally, web interface is fine, can login, enable/disable checks, etc... However, every 2 hours exactly, I'm getting the following alert in email: From: nagios Subject: ** PROBLEM Host Alert: localhost is DOWN ** ***** Nagios ***** Notification Type: PROBLEM Host: localhost State: DOWN Address: 127.0.0.1 Info: (Return code of 127 is out of bounds - plugin may be missing) Date/Time: Tue May 18 15:00:15 PDT 2010 If I go to check the services, everything is green. This is coming from a fresh install with nothing special configured. I've googled until my eyes glazed over and no one seems to report this happening with "localhost". I've checked for the plugins, checked permissions, etc... The best I can tell, it's all as it should be. I’m sure I’ve missed some simple detail somewhere, but it’s eluding me at the moment. Any help on solving this problem would be greatly appreciated. Below, I've included logfile contents as well as every detail I could think of on how the system is setup. Thanks [1274215437] Nagios 3.2.1 starting... (PID=5185)[1274215437] Local time is Tue May 18 13:43:57 PDT 2010 [1274215437] LOG VERSION: 2.0 [1274215437] Finished daemonizing... (New PID=5186)[1274215447] Warning: Return code of 127 for check of host 'localhost' was out of bounds. Make sure the plugin you're trying to run actually e xists. [1274215447] HOST ALERT: localhost;DOWN;SOFT;1;(Return code of 127 is out of bounds - plugin may be missing)[1274215477] Warning: Return code of 127 for check of service 'Current Load' on host 'localhost' was out of bounds. Make sure the plugin you'r e trying to run actually exists. [1274215477] SERVICE ALERT: localhost;Current Load;CRITICAL;HARD;1;(Return code of 127 is out of bounds - plugin may be missing)[1274215517] Warning: Return code of 127 for check of host 'localhost' was out of bounds. Make sure the plugin you're trying to run actually e xists. [1274215517] HOST ALERT: localhost;DOWN;SOFT;2;(Return code of 127 is out of bounds - plugin may be missing)[1274215517] Warning: Return code of 127 for check of service 'Current Users' on host 'localhost' was out of bounds. Make sure the plugin you' re trying to run actually exists. [1274215517] SERVICE ALERT: localhost;Current Users;CRITICAL;HARD;1;(Return code of 127 is out of bounds - plugin may be missing)[1274215557] Warning: Return code of 127 for check of service 'HTTP' on host 'localhost' was out of bounds. Make sure the plugin you're trying to run actually exists. [1274215557] SERVICE ALERT: localhost;HTTP;CRITICAL;HARD;1;(Return code of 127 is out of bounds - plugin may be missing)[1274215587] Warning: Return code of 127 for check of host 'localhost' was out of bounds. Make sure the plugin you're trying to run actually e xists. [1274215557] SERVICE ALERT: localhost;HTTP;CRITICAL;HARD;1;(Return code of 127 is out of bounds - plugin may be missing)[1274215587] Warning: Return code of 127 for check of host 'localhost' was out of bounds. Make sure the plugin you're trying to run actually e xists. [1274215587] HOST ALERT: localhost;DOWN;SOFT;3;(Return code of 127 is out of bounds - plugin may be missing) [1274215597] Warning: Return code of 127 for check of service 'PING' on host 'localhost' was out of bounds. Make sure the plugin you're trying to run actually exists. [1274215597] SERVICE ALERT: localhost;PING;CRITICAL;HARD;1;(Return code of 127 is out of bounds - plugin may be missing) [1274215627] Warning: Return code of 127 for check of service 'Root Partition' on host 'localhost' was out of bounds. Make sure the plugin you're trying to run actually exists. [1274215627] SERVICE ALERT: localhost;Root Partition;CRITICAL;HARD;1;(Return code of 127 is out of bounds - plugin may be missing) Detailed information on the system, what's installed, etc...: CentOS 5.4 Linux [deleted] 2.6.18-194.el5 #1 SMP Fri Apr 2 14:58:35 EDT 2010 i686 i686 i386 GNU/Linux Nagios 3.2.1 Nagios Plugins 1.4.14 Apache httpd 2.2.15 PHP 5.3.2 $ grep nagios /etc/passwd nagios:x:9000:9001::/home/nagios:/bin/bash $ grep nag /etc/group nagcmd:x:9000:apache nagios:x:9001:nagios Options used to build nagios: ./configure --with-command-group=nagcmd \ --prefix=/opt/nagios-3.2.1 \ --with-nagios-user=nagios \ --with-httpd-conf=/opt/httpd/conf Options used to build plugins: ./configure --with-nagios-user=nagios \ --with-nagios-group=nagios \ --prefix=/opt/nagios-3.2.1 Permissions of files in /opt/nagios-3.2.1/libexec: $ ls -l /opt/nagios-3.2.1/libexec/ total 1360K -rwxr-xr-x 1 nagios nagios 31052 May 18 13:48 check_apt* -rwxr-xr-x 1 nagios nagios 2240 May 18 13:48 check_breeze* -rwxr-xr-x 1 nagios nagios 38078 May 18 13:48 check_by_ssh* lrwxrwxrwx 1 root root 9 May 18 13:48 check_clamd -> check_tcp* -rwxr-xr-x 1 nagios nagios 21516 May 18 13:48 check_cluster* -r-sr-xr-x 1 root nagios 34952 May 18 13:48 check_dhcp* -rwxr-xr-x 1 nagios nagios 32640 May 18 13:48 check_dig* -rwxr-xr-x 1 nagios nagios 48280 May 18 13:48 check_disk* -rwxr-xr-x 1 nagios nagios 8075 May 18 13:48 check_disk_smb* -rwxr-xr-x 1 nagios nagios 36777 May 18 13:48 check_dns* -rwxr-xr-x 1 nagios nagios 18705 May 18 13:48 check_dummy* -rwxr-xr-x 1 nagios nagios 3051 May 18 13:48 check_file_age* -rwxr-xr-x 1 nagios nagios 6313 May 18 13:48 check_flexlm* lrwxrwxrwx 1 root root 9 May 18 13:48 check_ftp -> check_tcp* -rwxr-xr-x 1 nagios nagios 85634 May 18 13:48 check_http* -r-sr-xr-x 1 root nagios 39620 May 18 13:48 check_icmp* -rwxr-xr-x 1 nagios nagios 23743 May 18 13:48 check_ide_smart* -rwxr-xr-x 1 nagios nagios 15132 May 18 13:48 check_ifoperstatus* -rwxr-xr-x 1 nagios nagios 12518 May 18 13:48 check_ifstatus* lrwxrwxrwx 1 root root 9 May 18 13:48 check_imap -> check_tcp* -rwxr-xr-x 1 nagios nagios 7350 May 18 13:48 check_ircd* lrwxrwxrwx 1 root root 9 May 18 13:48 check_jabber -> check_tcp* -rwxr-xr-x 1 nagios nagios 30014 May 18 13:48 check_ldap* lrwxrwxrwx 1 root root 10 May 18 13:48 check_ldaps -> check_ldap* -rwxr-xr-x 1 nagios nagios 28714 May 18 13:48 check_load* -rwxr-xr-x 1 nagios nagios 6020 May 18 13:48 check_log* -rwxr-xr-x 1 nagios nagios 20282 May 18 13:48 check_mailq* -rwxr-xr-x 1 nagios nagios 25812 May 18 13:48 check_mrtg* -rwxr-xr-x 1 nagios nagios 24295 May 18 13:48 check_mrtgtraf* -rwxr-xr-x 1 nagios nagios 28548 May 18 13:48 check_nagios* lrwxrwxrwx 1 root root 9 May 18 13:48 check_nntp -> check_tcp* lrwxrwxrwx 1 root root 9 May 18 13:48 check_nntps -> check_tcp* -rwxr-xr-x 1 nagios nagios 38266 May 18 13:48 check_nt* -rwxr-xr-x 1 nagios nagios 35917 May 18 13:48 check_ntp* -rwxr-xr-x 1 nagios nagios 33889 May 18 13:48 check_ntp_peer* -rwxr-xr-x 1 nagios nagios 31725 May 18 13:48 check_ntp_time* -rwxr-xr-x 1 nagios nagios 54192 May 18 13:48 check_nwstat* -rwxr-xr-x 1 nagios nagios 8324 May 18 13:48 check_oracle* -rwxr-xr-x 1 nagios nagios 30356 May 18 13:48 check_overcr* -rwxr-xr-x 1 nagios nagios 41387 May 18 13:48 check_ping* lrwxrwxrwx 1 root root 9 May 18 13:48 check_pop -> check_tcp* -rwxr-xr-x 1 nagios nagios 39647 May 18 13:48 check_procs* -rwxr-xr-x 1 nagios nagios 29078 May 18 13:48 check_real* -rwxr-xr-x 1 nagios nagios 9579 May 18 13:48 check_rpc* -rwxr-xr-x 1 nagios nagios 1135 May 18 13:48 check_sensors* lrwxrwxrwx 1 root root 9 May 18 13:48 check_simap -> check_tcp* -rwxr-xr-x 1 nagios nagios 51895 May 18 13:48 check_smtp* lrwxrwxrwx 1 root root 9 May 18 13:48 check_spop -> check_tcp* -rwxr-xr-x 1 nagios nagios 26231 May 18 13:48 check_ssh* lrwxrwxrwx 1 root root 9 May 18 13:48 check_ssmtp -> check_tcp* -rwxr-xr-x 1 nagios nagios 30682 May 18 13:48 check_swap* -rwxr-xr-x 1 nagios nagios 38940 May 18 13:48 check_tcp* -rwxr-xr-x 1 nagios nagios 28909 May 18 13:48 check_time* lrwxrwxrwx 1 root root 9 May 18 13:48 check_udp -> check_tcp* -rwxr-xr-x 1 nagios nagios 34400 May 18 13:48 check_ups* -rwxr-xr-x 1 nagios nagios 27485 May 18 13:48 check_users* -rwxr-xr-x 1 nagios nagios 2934 May 18 13:48 check_wave* -rwxr-xr-x 1 nagios nagios 28787 May 18 13:48 negate* -rwxr-xr-x 1 nagios nagios 27484 May 18 13:48 urlize* -rwxr-xr-x 1 nagios nagios 1939 May 18 13:48 utils.pm* -rwxr-xr-x 1 nagios nagios 862 May 18 13:48 utils.sh* </body> </html>