问题：
执行完命令 /usr/local/nagios/bin/nagios -v /usr/local/nagios/etc/nagios.cfg 后重启Nagios报错
[root@CentOs nagios-plugins-2.2.1]# systemctl restart nagios.service
解决方法：
[root@CentOs nagios-plugins-2.2.1]# vim /etc/systemd/system/nagios.service
添加如下内容：
[Unit] Description=Nagios BindTo=network.target [Install] WantedBy=multi-user.target [Service] User=nagios Group=nagios Type=simple ExecStart=/usr/local/nagios/bin/nagios /usr/local/nagios/etc/nagios.cfg
之后运行如下命令，即可成功！
[root@CentOs nagios-plugins-2.2.1]# systemctl enable /etc/systemd/system/nagios.service
Created symlink from /etc/systemd/system/multi-user.target.wants/nagios.service to /etc/systemd/system/nagios.service.
[root@CentOs nagios-plugins-2.2.1]# systemctl start nagios
[root@CentOs nagios-plugins-2.2.1]# systemctl restart nagios
[root@CentOs nagios-plugins-2.2.1]#
标签：service,CentOs,etc,nagios,Failed,plugins,2.2 From： https://www.cnblogs.com/zypdbk/p/16852596.html