debian mrtg安装与监控

root@alex:~#  apt-get install snmpd mrtg

root@alex:~# vim /etc/snmp/snmpd.conf    \\或者shell界面输入snmpconf按照提示进行配置文件修改

com2sec notConfigUser  192.168.108.102           public

com2sec notConfigUser  localhost                 public

com2sec notConfigUser  127.0.0.1                 public

\\做一个映射，把notConfigUser与public做好一个映射，在调用snmp的时候，声明notConfigUser 就可以获得相应的权限

group   notConfigGroup v1           notConfigUser

group   notConfigGroup v2c           notConfigUser

把notConfigUser放到notConfigGroup组里， 用的协议是v1和v2c

view    all        included     .1              80

赋予所有这个用户view能够查看.1下面所有节点

access  notConfigGroup ""      any       noauth    exact   all none none

基本语法access NAME CONTEXT MODEL LEVEL PREFX READ WRITE NOTIFY

v2c版本，所以context为空，any理解成v2c level也就是noauth ，all none none就是所有权限

syslocation Unknown (edit /etc/snmp/snmpd.conf)

syscontact Root (configure /etc/snmp/snmp.local.conf)

\\定义联系信息

pass .1.3.6.1.4.1.4413.4.1 /usr/bin/ucd5820stat   \\定义MIB组件

root@alex:~# /etc/init.d/snmpd restart

root@alex:~# snmpwalk -v 2c -c public localhost

root@alex:~# snmpwalk -v 2c -c public 192.168.108.102

能够出现很多数据，也就说明snmp调试成功

配置mrtg

root@alex:~#  mkdir /var/www/mrtg

root@alex:~#  mkdir /etc/mrtg

root@alex:~# vim /etc/mrtg/cpu.pl   \\定义监控cpu  ，网上找的 用perl语言编写

#!/usr/bin/perl

system ("/usr/bin/sar -u 1 3|grep Average >cpu_info_file");

open (CPUINFO,"cpu_info_file");

@cpuinfo=;

close (CPUINFO);

foreach $line(@cpuinfo) {

@cpustatus=split(/ +/,$line);

}

$cpuused=$cpustatus[2]+$cpustatus[4];

$cpuidle=$cpustatus[5];

print "$cpuused\n";

print "$cpuidle";

system ("uptime");

system ("uname -n");

root@alex:~# vim /etc/mrtg/mem.pl   \\定义监控内存

#!/usr/bin/perl

system ("/usr/bin/free -m | grep Mem >mem_info_file");

open (MEMINFO,"mem_info_file");

@meminfo=;

close (MEMINFO);

foreach $line(@meminfo) {

@memstatus=split(/ +/,$line);

}

$memused=$memstatus[2];

$memtotal=$memstatus[1];

print "$memused\n";

print "$memtotal\n";

system ("uptime");

system ("uname -n");

root@alex:~# vim /etc/mrtg.cfg    \\在mrtg配置文件里添加监控信息

#---------CPU-------------------------------------

Target[192.168.108.102_cpu]: `/etc/mrtg/cpu.pl`

Xsize[192.168.108.102_cpu]: 500

Ysize[192.168.108.102_cpu]: 300

Ytics[192.168.108.102_cpu]: 30

MaxBytes[192.168.108.102_cpu]:100

Title[192.168.108.102_cpu]:CPU State

PageTop[192.168.108.102_cpu]:

CPU State of TestServer

ShortLegend[192.168.108.102_cpu]: %

YLegend[192.168.108.102_cpu]: CPU (%)

Legend1[192.168.108.102_cpu]: Used

Legend2[192.168.108.102_cpu]: Total

LegendI[192.168.108.102_cpu]: CPU Used

LegendO[192.168.108.102_cpu]: CPU IDEL

Options[192.168.108.102_cpu]: growright,gauge,nopercent

 

#---------mem-----------------------------------

Target[192.168.108.102_mem]: `/etc/mrtg/mem.pl`

Xsize[192.168.108.102_mem]:500

Ysize[192.168.108.102_mem]:300

Ytics[192.168.108.102_mem]:30

MaxBytes[192.168.108.102_mem]: 2002

Title[192.168.108.102_mem]:Memory State of TestServer

PageTop[192.168.108.102_mem]:

Memory State of TestServer

ShortLegend[192.168.108.102_mem]: B

kmg[192.168.108.102_mem]: M

YLegend[192.168.108.102_mem]: Memory Usage

Legend1[192.168.108.102_mem]: Used

Legend2[192.168.108.102_mem]: Total

LegendI[192.168.108.102_mem]: Used

LegendO[192.168.108.102_mem]: Total

Options[192.168.108.102_mem]: growright,gauge,nopercent

root@alex:~# cfgmaker --global "WorkDir: /var/www/mrtg" --global "Options[_]: growright,bits" --ifref=ip public @127.0.0.1 > mrtg.cfg   \\ cfgmaker生成文档

root@alex:~# mrtg /etc/mrtg.cfg  执行三次 没有错误  bug 生成html和图片

root@alex:~#  indexmaker /etc/mrtg.cfg > /var/www/mrtg/index.html \\生成mrtg主页

 

在网页输入  即可显示监控图像信息

注：如需增加监控信息 需要增加相应配置 在/etc/mrtg.cfg中添加信息 并且重新生成index.html，执行mrtg /etc/mrtg.cfg