Monitor CPU, traffic, disk space, memory with SNMP+MRTG

1. Install SNMP

Yum Install net-snmp*-y

2, Modify the/etc/snmpd.conf (can be directly emptied content)

① Add rocommunity Public

② Find Disk modification (Df–k view) can have multiple, see the situation

disk/$size

Disk/boot $size 1

[Disk/home $size 2 ...]

3. Start

/ETC/INIT.D/SNMPD restart

4, installation MRTG

Yum Install mrtg*-y

5 Write the following to/etc/mrtg/mrtg.cfg, direct overwrite (the yellow background needs to be changed)

############################################################

# Multi Router Traffic Grapher--Example Configuration File

############################################################

#

#Minimal mrtg.cfg

Htmldir:/VAR/WWW/MRTG

Imagedir:/VAR/WWW/MRTG

LogDir:/VAR/LIB/MRTG

Threshdir:/VAR/LIB/MRTG

#####################################################

#moniting LAN Interface

#####################################################

Target[eth1_lan]:/10.0.0.99:[email protected]localhost:

Options[eth1_lan]: growright

Directory[eth1_lan]: eth1

Maxbytes[eth1_lan]: 100000000

Kmg[eth1_lan]: k,m,g

Ylegend[eth1_lan]: Bytes per Second

Shortlegend[eth1_lan]: b/S

Legend1[eth1_lan]: inflow per second (unit Bytes)

Legend2[eth1_lan]: outflow per second (unit Bytes)

Legendi[eth1_lan]: inflow:

Legendo[eth1_lan]: outflow:

Title[eth1_lan]: eth1 network traffic [inflow + outflow]

Pagetop[eth1_lan]: network traffic [inflow + outflow]

###################################################

#Moniting CPU Load[use+free]

###################################################

Target[cpuload]:. 1.3.6.1.4.1.2021.11.50.0&.1.3.6.1.4.1.2021.11.53.0:[email protected]:

Options[cpuload]: Nopercent,growright

Directory[cpuload]: CPU

Maxbytes[cpuload]: 100

Unscaled[cpuload]: Dwym

Ylegend[cpuload]: CPU utilization

Shortlegend[cpuload]:%

Legend1[cpuload]: CPU usage load (%)

Legend2[cpuload]: CPU idle (%)

Legendi[cpuload]: use:

Legendo[cpuload]: idle:

Title[cpuload]: CPU Load [use + idle]

Pagetop[cpuload]: Load [use + idle]

###################################################

#Moniting used memory and Swap [Mem+swap] Free-k

###################################################

Target[memory]:. 1.3.6.1.2.1.25.2.3.1.6.1&.1.3.6.1.2.1.25.2.3.1.6.3:[email protected]:

Options[memory]: Gauge,growright

Directory[memory]: Mem

Maxbytes1[memory]: 327252

Maxbytes2[memory]: 1023992

#MaxBytesX [Memory]: 1023992 can be multiple, see the situation

Kmg[memory]: k,m,g

Kilo[memory]: 1024

Unscaled[memory]: Dwym

Ylegend[memory]: Mem Bytes

Shortlegend[memory]: B

Legend1[memory]: mem Used (Bytes)

Legend2[memory]: swap Used (Bytes)

Legendi[memory]: mem used:

Legendo[memory]: swap used:

Title[memory]: memory usage [Mem+swap]

Pagetop[memory]: memory usage [mem+swap]

###################################################

#Moniting disk size [/+/boot] Df-k

###################################################

Target[disk]:. 1.3.6.1.4.1.2021.9.1.8.1&.1.3.6.1.4.1.2021.9.1.8.2:[email protected]:

Options[disk]: Gauge,growright

Directory[disk]: Disk

Maxbytes1[disk]: 11087104

Maxbytes2[disk]: 495844

Kmg[disk]: k,m,g

Kilo[disk]: 1024

Unscaled[disk]: Dwym

Ylegend[disk]: Disk Bytes

Shortlegend[disk]: B

Legend1[disk]: The root partition has used space

Legend2[disk]: Boot partition used space

Legendi[disk]: root partition is used:

Legendo[disk]: Boot partition is used:

Title[disk]: hard disk space [root partition +boot partition]

Pagetop[disk]: hard disk space [root partition +boot partition]

6, cp/etc/cron.d/mrtg/etc/mrtg/

7, VI/ETC/MRTG/MRTG, change to the following content:

#!/bin/bash

Lang=c lc_all=c/usr/bin/mrtg/etc/mrtg/mrtg.cfg--lock-file/var/lock/mrtg/mrtg_l--confcache-file/var/lib/mrtg/ Mrtg.ok

8. Execute 3 times

/etc/mrtg/mrtg

/etc/mrtg/mrtg

/etc/mrtg/mrtg

9. Implementation

indexmaker--output/var/www/mrtg/index.html–title= "System State Monitor"/etc/mrtg/mrtg.cfg

Modify the Apache configuration file httpd.conf

ALIAS/MRTG "/VAR/WWW/MRTG"

<directory "/VAR/WWW/MRTG" >

Options indexes

AllowOverride None

Order Deny,allow

Deny from all

Allow from all

</Directory>

One by one, restart httpd

Visit http://localhost/mrtg/

if garbled, change the code

Transferred from: http://my.oschina.net/fufangchun/blog/86883

Use SNMP+MRTG to monitor CPU, traffic, disk space, memory