nagios监控告警之tcp链接状态监测（附pnp模板）

步骤：

1、下载tcp链接状态监测脚本：
https://github.com/June-Wang/NagiosPlugins/blob/master/check_tcp_stat.sh
2、下载php模板
https://github.com/June-Wang/NagiosPlugins/blob/master/check_tcp_stat.php

用法：

1、将自定义命令添加到nrpe.cfg
echo 'command[check_tcp_stat]=/usr/local/nagios/libexec/check_tcp_stat.sh -w 300 -c 500 -l' >> /usr/local/nagios/etc/nrpe.cfg
参数说明：
-w -c 网络连接数阀值
-l 开启日志记录功能
注意：
1、如开启日志功能，要手动执行一次命令，程序会自动创建/var/log/tcp文件夹。
日志预览：
2014-03-03 09:27:49 Total:113 TIME_WAIT:93 ESTABLISHED:20
2014-03-03 09:30:49 Total:92 TIME_WAIT:72 ESTABLISHED:20
2014-03-03 09:33:49 Total:132 TIME_WAIT:110 ESTABLISHED:22
2014-03-03 09:36:49 Total:151 TIME_WAIT:130 FIN_WAIT1:1 ESTABLISHED:20
2014-03-03 09:39:49 Total:91 TIME_WAIT:70 ESTABLISHED:21
2014-03-03 09:42:49 Total:84 TIME_WAIT:67 ESTABLISHED:17
2014-03-03 09:45:49 Total:94 TIME_WAIT:75 FIN_WAIT2:1 ESTABLISHED:18
2014-03-03 09:48:49 Total:90 TIME_WAIT:69 ESTABLISHED:21
2014-03-03 09:51:49 Total:101 TIME_WAIT:76 ESTABLISHED:25
2014-03-03 09:55:54 Total:58 TIME_WAIT:51 ESTABLISHED:7

效果图：





注意：
1、图示里面的数值是所有状态的tcp链接数