Gentoo安装SNMP & MRTG 本机监控

2021-01-22 07:37:51 浏览数 (1)

必要组件：

  • net-analyzer/net-snmp
  • media-libs/gd
  • net-analyzer/mrtg
  • sys-process/vixie-cron

0) 切换用户

代码语言：javascript复制
/bin/su -

1) 创建目录

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/usr/bin/mkdir /etc/mrtg
/usr/bin/mkdir /etc/cron.mrtg
/usr/bin/mkdir /var/www/localhost/mrtg

2) 创建snmpd.conf文件

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vim /etc/snmp/snmpd.conf
com2sec local     127.0.0.1/32    public
com2sec local     10.10.10.0/24   public

group MyROGroup v1         local
group MyROGroup v2c        local
group MyROGroup usm        local

view all    included  .1                               80

access MyROGroup ""      any       noauth    exact  all    none   none

syslocation MyLocation
syscontact Me <me@somewhere.org>

编辑 /etc/conf.d/snmpd 在SNMPD_FLAGS里面添加

代码语言：javascript复制
-c /etc/snmp/snmpd.conf

如：SNMPD_FLAGS=”-c /etc/snmp/snmpd.conf”

3) 创建守护进程

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/etc/init.d/snmpd start
/sbin/rc-update add snmpd default

4) 配置

Traffic:

代码语言：javascript复制
/usr/bin/cfgmaker  
--output=/etc/mrtg/traffic.cfg 
--ifdesc=ip 
--ifref=descr 
--global "WorkDir: /var/www/localhost/mrtg" 
--global "Options[_]: bits,growright" 
public@localhost

Cpu:

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vim /etc/mrtg/cpu.cfg
WorkDir: /var/www/localhost/mrtg
LoadMIBs: /usr/share/snmp/mibs/UCD-SNMP-MIB.txt
Target[localhost.cpu]:ssCpuRawUser.0&ssCpuRawUser.0:public@localhost   ssCpuRawSystem.0&ssCpuRawSystem.0:public@localhost   ssCpuRawNice.0&ssCpuRawNice.0:public@localhost
RouterUptime[localhost.cpu]: public@localhost
MaxBytes[localhost.cpu]: 100
Title[localhost.cpu]: CPU Load
PageTop[localhost.cpu]: Active CPU Load %
Unscaled[localhost.cpu]: ymwd
ShortLegend[localhost.cpu]: %
YLegend[localhost.cpu]: CPU Utilization
Legend1[localhost.cpu]: Active CPU in % (Load)
Legend2[localhost.cpu]:
Legend3[localhost.cpu]:
Legend4[localhost.cpu]:
LegendI[localhost.cpu]:  Active
LegendO[localhost.cpu]:
Options[localhost.cpu]: growright,nopercent

Mem:

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vim /etc/mrtg/mem.cfg
LoadMIBs: /usr/share/snmp/mibs/HOST-RESOURCES-MIB.txt
Target[localhost.mem]: .1.3.6.1.4.1.2021.4.11.0&.1.3.6.1.4.1.2021.4.11.0:public@localhost
PageTop[localhost.mem]: Free Memory 
WorkDir: /var/www/localhost/mrtg
Options[localhost.mem]: nopercent,growright,gauge,noinfo
Title[localhost.mem]: Free Memory
MaxBytes[localhost.mem]: 1000000
kMG[localhost.mem]: k,M,G,T,P,X
YLegend[localhost.mem]: bytes
ShortLegend[localhost.mem]: bytes
LegendI[localhost.mem]:  Free Memory:
LegendO[localhost.mem]:
Legend1[localhost.mem]: Free memory, not including swap, in bytes

Swap:

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vim /etc/mrtg/swap.cfg
LoadMIBs: /usr/share/snmp/mibs/UCD-SNMP-MIB.txt
Target[localhost.swap]: memAvailSwap.0&memAvailSwap.0:public@localhost
PageTop[localhost.swap]: Swap Memory
WorkDir: /var/www/localhost/mrtg
Options[localhost.swap]: nopercent,growright,gauge,noinfo
Title[localhost.swap]: Free Memory
MaxBytes[localhost.swap]: 1000000
kMG[localhost.swap]: k,M,G,T,P,X
YLegend[localhost.swap]: bytes
ShortLegend[localhost.swap]: bytes
LegendI[localhost.swap]:  Free Memory:
LegendO[localhost.swap]:
Legend1[localhost.swap]: Swap memory avail, in bytes

Ping:

代码语言：javascript复制
vim /etc/mrtg/ping.cfg
WorkDir: /var/www/localhost/mrtg
Title[mithril.ping]: Round Trip Time
PageTop[mithril.ping]: Round Trip Time
Target[mithril.ping]: `/etc/mrtg/ping.sh`
MaxBytes[mithril.ping]: 2000
Options[mithril.ping]: growright,unknaszero,nopercent,gauge
LegendI[mithril.ping]: Pkt loss %
LegendO[mithril.ping]: Avg RTT
Legend1[mithril.ping]: Maximum Round Trip Time in ms
Legend2[mithril.ping]: Minimum Round Trip Time in ms
#Legend3[mithril.ping]: Maximal 5 Minute Maximum Round Trip Time in ms
#Legend4[mithril.ping]: Maximal 5 Minute Minimum Round Trip Time in ms
YLegend[mithril.ping]: RTT (ms)

5) 创建脚本

Traffic:

代码语言：javascript复制
vim /etc/cron.mrtg/traffic.sh
#!/bin/sh
/usr/bin/mrtg /etc/mrtg/traffic.cfg

Cpu:

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vim /etc/cron.mrtg/cpu.sh
#!/bin/sh
/usr/bin/mrtg /etc/mrtg/cpu.cfg

Mem:

代码语言：javascript复制
vim /etc/cron.mrtg/mem.sh
#!/bin/sh
/usr/bin/mrtg /etc/mrtg/mem.cfg

Swap:

代码语言：javascript复制
vim /etc/cron.mrtg/swap.sh
#!/bin/sh
/usr/bin/mrtg /etc/mrtg/swap.cfg

Ping:

代码语言：javascript复制
vim /etc/cron.mrtg/ping.sh
#!/bin/sh
/usr/bin/mrtg /etc/mrtg/ping.cfg

ping.sh

代码语言：javascript复制
vim /etc/mrtg/ping.sh
#!/bin/sh
PING="/bin/ping"
# Google, for example
ADDR="google.com"
DATA=`$PING -c10 -s500 $ADDR -q `
LOSS=`echo $DATA | awk '{print $18 }' | tr -d %`
echo $LOSS
if [ $LOSS = 100 ];
then
               echo 0
else
        echo $DATA | awk -F/ '{print $5 }'
fi

赋予脚本可执行权限

代码语言：javascript复制
/bin/chmod  x /etc/cron.mrtg/*.sh
/bin/chmod  x /etc/mrtg/ping.sh

下面的每个脚本执行3次，不必理会warning

代码语言：javascript复制
/etc/cron.mrtg/traffic.sh
/etc/cron.mrtg/cpu.sh
/etc/cron.mrtg/mem.sh
/etc/cron.mrtg/swap.sh
/etc/cron.mrtg/ping.sh

6) 创建MRTG首页

代码语言：javascript复制
/usr/bin/indexmaker --output=/var/www/localhost/mrtg/index.html 
--title="Power Under Control : )" 
--sort=name 
--enumerate 
/etc/mrtg/traffic.cfg 
/etc/mrtg/cpu.cfg 
/etc/mrtg/mem.cfg 
/etc/mrtg/swap.cfg 
/etc/mrtg/ping.cfg

7) 计划任务

每5分钟执行一次数据更新

代码语言：javascript复制
usr/bin/crontab -e
*/5 * * * * /bin/run-parts /etc/cron.mrtg 1> /dev/null

现在就有一个html文件生成好了/var/www/localhost/www/index.html 将你的web服务器设置好，打开流量器就可以看到统计数据了。

参考链接：http://forums.gentoo.org/viewtopic-t-105862.html

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