Error: Could not read host and service status information!
Error: Could not stat() command file '/usr/local/nagios/var/rw/nagios.cmd'!
The external command file may be missing, Nagios may not be running, and/or Nagios may not be checking external commands.
apache的運行用戶要對文件寫的權限 ,權限設置目錄、/usr/local/nagios/var/rw
查看apache進程,什麼用戶在運行
[root@standby objects]# ps -ef | grep http
root 4406 1 0 11:29 ? 00:00:00 /usr/sbin/httpd
nagios 4408 4406 0 11:29 ? 00:00:00 /usr/sbin/httpd
nagios 4409 4406 0 11:29 ? 00:00:00 /usr/sbin/httpd
nagios 4410 4406 0 11:29 ? 00:00:00 /usr/sbin/httpd
nagios 4411 4406 0 11:29 ? 00:00:00 /usr/sbin/httpd
nagios 4412 4406 0 11:29 ? 00:00:00 /usr/sbin/httpd
nagios 4413 4406 0 11:29 ? 00:00:00 /usr/sbin/httpd
nagios 4414 4406 0 11:29 ? 00:00:00 /usr/sbin/httpd
然後 更改權限
chmod 777 /usr/local/nagios/var/rw
重啓服務
service nagios restart
被監控機上安裝 nagios-plugins 插件時報錯
這個是因爲沒有安裝ssl導致,安裝ssl解決
yum install openssl openssl-devel