nagios的check_ping插件学习
(nagios插件：nagios-plugins-1.4.12/plugins/check_ping.c)
[root@datacenter libexec]# ./check_ping --help
check_ping v1.4.15 (nagios-plugins 1.4.15)
Copyright (c) 1999 Ethan Galstad <>
Copyright (c) 2000-2007 Nagios Plugin Development Team
<>
Use ping to check connection statistics for a remote host.
Usage:
check_ping -H <host_address> -w <wrta>,<wpl>% -c <crta>,<cpl>%
[-p packets] [-t timeout] [-4|-6]
Options:
-h, --help
Print detailed help screen
-V, --version
Print version information
-4, --use-ipv4
Use IPv4 connection
-6, --use-ipv6
Use IPv6 connection
-H, --hostname=HOST
host to ping
-w, --warning=THRESHOLD
warning threshold pair
-c, --critical=THRESHOLD
critical threshold pair
-p, --packets=INTEGER
number of ICMP ECHO packets to send (Default: 5)
-L, --link
show HTML in the plugin output (obsoleted by urlize)
-t, --timeout=INTEGER
Seconds before connection times out (default: 10)
THRESHOLD is <rta>,<pl>% where <rta> is the round trip average travel
time (ms) which triggers a WARNING or CRITICAL state, and <pl> is the
percentage of packet loss to trigger an alarm state.
This plugin uses the ping command to probe the specified host for packet loss
(percentage) and round trip average (milliseconds). It can produce HTML output
linking to a traceroute CGI contributed by Ian Cass. The CGI can be found in
the contrib area of the downloads section at http://www.nagios.org/
Send email to if you have questions
regarding use of this software. To submit patches or suggest improvements,
send email to
[root@datacenter libexec]#
用法：
Usage: check_ping -H <host_address> -w <wrta>,<wpl>% -c <crta>,<cpl>%
[-p packets] [-t timeout] [-L] [-4|-6]
具体如下：
-H 主机地址
-w WARNING 警告状态： 响应时间(毫秒)，丢包率 (%) 阀值
-c CRITICAL 危险状态： 响应时间(毫秒)，丢包率 (%) 阀值
-p 发送的包数 默认5个包
-t 超时时间 默认10秒
-4|-6 使用ipv4|ipv6 地址 默认ipv4
示例：
-H 目标主机
-w 延时200丢包20%
-c 延时300丢包50%
延时有3个范围
1. 延时 小于 200
2. 延时 在 200 - 300 范围内
3. 延时 大于 300
小于则输出 OK 正常
范围内则输出 WARNING 警告
大于则输出 CRITICAL 宕机
1、OK 正常
2、WARNING 警告
3、CRITICAL 宕机