分享一个linux的流量监测工具！！！（2）

[root@server146 monitoring]# ls -l /var/www/html/monitoring
总计 28
-rw-r--r-- 1 munin munin 2555 07-22 15:15 definitions.html
-rw-r--r-- 1 munin munin 1584 07-23 17:00 index.html
drwxr-xr-x 2 munin munin 12288 07-22 15:15 localhost
-rw-r--r-- 1 munin munin 473 07-22 15:15 logo.png
-rw-r--r-- 1 munin munin 3538 07-22 15:15 style.css

通过http://ip/monitoring/ 就可以查看到主机的监控信息http:#192.168.1.146/monitoring/localhost/localhost.html#Network图：Munin监控信息

图：Munin监控信息每天


图：Munin监控信息每周
安装和配置monit
执行yum 完成安装

yum install monit

设置monit的启动脚本
chkconfig --levels 235 monit on
默认的/etc/monit.conf文件中是注释的示例配置文件，http:#mmonit.com/wiki/Monit/ConfigurationExamples这里是官方提供的配置文件参考。
http:#mmonit.com/monit/documentation/monit.html 这里是详尽的配置文件的语法格式信息。
大家注意到/etc/monit.conf文件末尾的信息。

###############################################################################
## Includes
###############################################################################
##
## It is possible to include additional configuration parts from other files or
## directories.
#
include /etc/monit.d/*
#
#

此处的信息的作用是与apache的配置文件类似，在/etc/monit.d/中的每个文件都是一个独立的配置文件，便于配置文件的结构化和维护操作。
创建一个简单的配置文件

vi /etc/monit.d/monitrc
set daemon 60 #每2分钟检查一次
set logfile syslog facility log_daemon #monit的日志文件
set mailserver localhost #设置邮件服务器
set mail-format { from: monit@192.168.1.149 } #出现错误的时候发报警邮件到指定的邮箱
set alert [e-mail]
set httpd port 2812 and use address 192.168.1.149 #设置http监控页面的端口和ip
SSL ENABLE
PEMFILE /var/certs/monit.pem
allow admin:test #认证的用户名和密码

#平均负载.内存使用率,cpu使用率
check system 192.168.1.149 
if loadavg (1min) > 4 then alert
if loadavg (5min) > 2 then alert
if memory usage > 75% then alert
if cpu usage (user) > 70% then alert
if cpu usage (system) > 30% then alert
if cpu usage (wait) > 20% then alert
# 磁盘空间使用率
check device data with path /dev/sda2
if space usage > 90% then alert
if inode usage > 85% then alert
check device home with path /dev/sda3
if space usage > 85% then alert
if inode usage > 85% then alert
#监控vsftpd服务
check process vsftpd with pidfile /var/run/vsftpd.pid
start program = "/etc/init.d/vsftpd start"
stop program = "/etc/init.d/vsftpd stop"
if failed port 21 protocol ftp then restart
if 5 restarts within 5 cycles then timeout

#监控ssh服务
check process sshd with pidfile /var/run/sshd.pid 
start program "/etc/init.d/sshd start"
stop program "/etc/init.d/sshd stop"
if failed port 22 protocol ssh then restart
if 5 restarts within 5 cycles then timeout
#监控mysql服务
check process mysql with pidfile /var/run/mysqld/mysqld.pid
group database
start program = "/etc/init.d/mysqld start"
stop program = "/etc/init.d/mysqld stop"
if failed host 127.0.0.1 port 3306 then restart
if 5 restarts within 5 cycles then timeout
#监控apache服务
check process apache with pidfile /var/run/httpd.pid
group www
start program = "/etc/init.d/httpd start"
stop program = "/etc/init.d/httpd stop"
if failed host 192.168.1.149 port 80 protocol http
and request "/monit/testok" then restart
if cpu is greater than 60% for 2 cycles then alert
if cpu > 80% for 5 cycles then restart
if totalmem > 500 MB for 5 cycles then restart
if children > 250 then restart
if loadavg(5min) greater than 10 for 8 cycles then stop
if 3 restarts within 5 cycles then timeout
#监控postfix 邮件服务
check process postfix with pidfile /var/spool/postfix/pid/master.pid
group mail
start program = "/etc/init.d/postfix start"
stop program = "/etc/init.d/postfix stop"
if failed port 25 protocol smtp then restart
if 5 restarts within 5 cycles then timeout
#监控自定义服务
check process web_lb with pidfile /opt/server/web_lb/httpd.pid
start program = "/opt/bin/lb.sh" #启动脚本
stop program = "/opt/bin/lb_stop.sh" #停止脚本
if failed host 192.168.1.149 port 6101 proto http then restart
if failed host 192.168.1.149 port 6101 proto http for 5 times within 5 cycles then exec "/opt/bin/lb_pay.sh"
if failed host 192.168.1.149 port 6102 type TCPSSL proto http then restart
if failed host 192.168.1.149 port 6102 type TCPSSL proto http for 5 times within 5 cycles then exec "/opt/bin/lb_pay.sh