Monitor CPU temperature with MRTG

Use MRTG to monitor CPU temperature-Linux Enterprise Application-Linux server application information. The following is a detailed description. It's time to roll again in summer ~ I believe many people are concerned about whether their CPU will go on strike due to overheating? Is there any software under Linux that can monitor the temperature?
That is lm-sensor. How can I install it?

If your core version is 2.2.X
Download the i2c and lm-sensor kits.
If your core version is 2.4.X
You only need to download lm-sensor.
For ease of KIT management, I put both files under/usr/local/src.
NOTE: If i2c can be executed in other core versions, it should be compiled into a module, which will be explained later.
Root # cd/usr/local/src
Root # tar zxvfp lm_sensors-2.8.0.tar.gz
Root # tar zxvfp i2c-2.8.0.tar.gz
Root # cd/usr/local/src/i2c-2.8.0
Root # make clean <--- very important, so that no compilation is incomplete.
Root # make dep
Root # make all
Root # make install
In this case, let's pack ic2 and then install lm-sensor.
Root # cd/usr/local/src/lm_sensors-2.8.0
Root # make clean is the same as above. Be sure to perform this step.
Root # make dep
Root # make all
Root # make install
It's easy to connect lm-sensor.
Root #/sbin/depmod-
Modify the file below to load the function library
Root # vi/etc/ld. so. conf
/Usr/local/lib add this line
Root # ldconfig
Root #./prog/mkdev. sh to generate the driver to support what you want to detect
Root # sensors-detect: scan the chipset used by your host
As long as you press Enter all the time, just wait until the following things come out according to its default value.
# ---- Cut here ----
# I2C adapter drivers
Modprobe i2c-isa
# I2C chip drivers
Modprobe w81_1d
Modprobe sis5595
# ---- Cut here ----

To make the sensors modules behave correctly, add these lines to either
/Etc/modules. conf or/etc/conf. modules:

# ---- Cut here ----
# I2C module options
I2c-dev alias char-major-89
# ---- Cut here ----
　
Root # vi/etc/modules. conf
Alias char-major-89 i2c-dev to add this line, boot will load
Root # modprobe i2c-isa
Root # modprobe w81_1d
Root # modprobe sis5595
Load the above three
Root # sensors
W83697hf-isa-0290
Adapter: ISA adapter
Algorithm: ISA algorithm
VCore: + 1.47 V (min = + 0.00 V, max = + 0.00 V) ALARM
+ 3.3 V: + 3.34 V (min = + 2.97 V, max = + 3.63 V)
+ 5 V: + 5.12 V (min = + 4.50 V, max = + 5.48 V)
+ 12 V: + 11.67 V (min = + 10.79 V, max = + 13.11 V)
-12 V:-11.83 V (min =-13.21 V, max =-10.90 V)
-5 V: + 3.53 V (min =-5.51 V, max =-4.51 V) ALARM
V5SB: + 5.58 V (min = + 4.50 V, max = + 5.48 V)
VBat: + 3.15 V (min = + 2.70 V, max = + 3.29 V)
Fan1: 3970 RPM (min = 3000 RPM, div = 2)
Fan2: 0 RPM (min = 3000 RPM, div = 2) ALARM
Temp1: + 40 °C (limit = + 60 °C) sensor = thermistor
Temp2: + 39.5 °C (limit = + 60 °C, hysteresis = + 50 °C) sensor = PII/celon diode
Alarms: Chassis intrusion detection ALARM
Beep_enable:
Sound alarm disabled

Sis5595-isa-8008
Adapter: ISA adapter
Algorithm: ISA algorithm
VCore 1: + 4.08 V (min = + 4.08 V, max = + 4.08 V) ALARM
VCore 2: + 4.08 V (min = + 4.08 V, max = + 4.08 V) ALARM
+ 3.3 V: + 4.08 V (min = + 4.08 V, max = + 4.08 V) ALARM
+ 5 V: + 6.85 V (min = + 6.85 V, max = + 6.85 V) ALARM
Fan1: 0 RPM (min = 0 RPM, div = 8) ALARM
Fan2: 0 RPM (min = 0 RPM, div = 8) ALARM
Temp: + 51 °C (limit = + 51 °C, hysteresis = + 51 °C) ALARM
Alarms: Board temperature input (usually LM75 chips) ALARM
If you do not want to reload the data every time you reactivate the instance, you can write the preceding data into/etc/rc. d/rc. local.
　
When the above stuff runs out, it's half done ??? ?? Integrate RTG
Root # cd/var/www/html/mrtg
Root # mkdir temp
Root # cd temp
Root # vi mrtg. temp
The file content is as follows:
#! /Bin/bash
Cputemp = 'sensors | grep temp1 | awk '{print $2}' | cut-c 2-4 ': Find the row containing temp1 and print 2-4 characters in the second column
Systemp = 'sensors | grep temp2 | awk '{print $2}' | cut-c 2-4 '.
UPtime = '/usr/bin/uptime | awk' {print $3 "" $4 "" $5 }''
Echo $ cputemp
Echo $ systemp
Echo $ UPtime
Echo dc.blue-moon.idv.tw (change to your host name)
　
Root # chmod 755 mrtg. temp change to Executable
Root #./mrtg. temp to see if there is any problem
40
37
18: 52, 2 users,
Dc.blue-moon.idv.tw
Next, write down the following file.
Root # vi mrtg. cfg. temp
WorkDir:/var/www/html/mrtg/temp/
Language: big5

Target [index]: '/var/www/html/mrtg/temp/mrtg. temp'
MaxBytes [index]: 60
Options [index]: gauge, nopercent, growright
YLegend [index]: Temp (degree)
ShortLegend [index]: Degree
LegendO [index]: system temperature;
LegendI [index]: CPU temperature;
Title [index]: Blue-Moon City system temperature table
PageTop [index]:

Blue-Moon City host temperature table


System: RedHat 9.0 + Apache 2.0.40


In this way, you only need to connect to http://yourhost.yourdomain/mrtg/tempcan be connected, and then call again? N
Root #/usr/bin/mrtg/var/www/html/mrtg/temp/mrtg. cfg. temp
Executed three times
Put it in the Schedule
Root # vi/etc/crontab
*/5 * root/usr/bin/mrtg/var/www/html/mrtg/temp/mrtg. cfg. temp>/dev/null 2> & 1
This is a success.