mkdir log
cd log
touch ./run
chmod 755 ./run
vi ./run
#!/bin/sh
exec setuidgid logadmin multilog t s1000000 n100 ./main
mkdir main
chmod 777 main
chown nagios.nagios main
touch status
chown nagios.nagios status
svc -u /service/nagios/
svstat /service/nagios/
root@## ps auxww | grep nagios
root 23276 0.0 0.1 1176 488 ?? I 5:00PM 0:01.71 supervise nagios
nagios 34251 0.0 0.3 2316 1552 ?? S 6:06PM 0:00.10 /usr/local/nagios/bin/nagios /usr/local/nagios/etc/nagios.cfg
root@##
ok，现在把nagios服务做成自动启动的服务。
通过svc命令可以启动或者停止服务。
———————————————————————————
svc opts services
opts is a series of getopt-style options. services consists of any number of arguments, each argument naming a directory used by supervise.
-u: Up. If the service is not running, start it. If the service stops, restart it.
-d: Down. If the service is running, send it a TERM signal and then a CONT signal. After it stops, do not restart it.
-o: Once. If the service is not running, start it. Do not restart it if it stops.
-p: Pause. Send the service a STOP signal.
-c: Continue. Send the service a CONT signal.
-h: Hangup. Send the service a HUP signal.
-a: Alarm. Send the service an ALRM signal.
-i: Interrupt. Send the service an INT signal.
-t: Terminate. Send the service a TERM signal.
-k: Kill. Send the service a KILL signal.
-x: Exit. supervise will exit as soon as the service is down. If you use this option on a stable system, you’re doing something wrong; supervise is designed to run forever.
———————————————————————————
比如：
停止nagios－－svc -d /service/nagios/
重启nagios－－svc -t /service/nagios/
启动nagios－－svc -u /service/nagios/
当然，你也可以使用inited的方式进行：
/usr/local/etc/rc.d/nagios start/stop
好，反正daemontools很强大，以后慢慢熟悉，转入正题。
现在打开网页：http://localhost/nagios/
一定会让你大吃一惊，呵呵，俺的服务器和服务状态都清楚的看到。
现在俺们的nagios中只有一个，那就是它自己，localhost，呵呵，等会俺们添加别的主机和主机服务，ok，俺们认识一下nagios的庐山真面目：
配置nagios：
1）为主机添加服务
2）添加主机并添加服务
3）停止一个服务
4）删除一台主机和服务
5）查看所有主机的故障
6）查看一台特定的主机状态
7）改变报警的时间间隔
8）改变发现故障的重试次数
9）如何在nagios中使用外部命令
1）为主机添加一个服务
为localhost主机添加qmail服务的监控，方法如下：
vi minimal.cfg
define service{
use generic-service ; Name of service template to use
host_name localhost
service_description qmail_smtp
is_volatile 0
check_period 24×7
max_check_attempts 1
normal_check_interval 1
retry_check_interval 1
contact_groups admins
notification_options w,u,c,r
notification_interval 960
notification_period 24×7
check_command check_smtp!20%!10%!/
}
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