Shulou(Shulou.com)06/01 Report--

1. View the traffic of the host network card

#! / bin/bash

# network

While:; do

Time='date +% m "-"% d ""% k ":"% M'

Day='date +% m "-"% d'

Rx_before='ifconfig eth0 | sed-n "8" p | awk'{print $2}'| cut-c7muri'

Tx_before='ifconfig eth0 | sed-n "8" p | awk'{print $6}'| cut-c7muri'

Sleep 2

Rx_after='ifconfig eth0 | sed-n "8" p | awk'{print $2}'| cut-c7muri'

Tx_after='ifconfig eth0 | sed-n "8" p | awk'{print $6}'| cut-c7muri'

Rx_result=$ [(rx_after-rx_before) / 256]

Tx_result=$ [(tx_after-tx_before) / 256]

Echo "$time Now_In_Speed:" $rx_result "kbps Now_OUt_Speed:" $tx_result "kbps"

Sleep 2

Done

2. System condition monitoring

#! / bin/sh

# systemstat.sh

IP=192.168.1.227

Top-n 2 | grep "Cpu" > >. / temp/cpu.txt

Free-m | grep "Mem" > >. / temp/mem.txt

Df-k | grep "sda1" > >. / temp/drive_sda1.txt

# df-k | grep sda2 > >. / temp/drive_sda2.txt

Df-k | grep "/ mnt/storage_0" > >. / temp/mnt_storage_0.txt

Df-k | grep "/ mnt/storage_pic" > >. / temp/mnt_storage_pic.txt

Time= `date +% m "."% d ""% k ":"% M`

Connect= `netstat-na | grep "219.238.148.30 grep 80" | wc-l`

Echo "$time $connect" > >. / temp/connect_count.txt

3. Monitor the disk space of the host. When the disk space exceeds 90%, send a warning by sending mail.

#! / bin/bash

# monitor available disk space

SPACE='df | sed-n'/ / $/ p'| gawk'{print $5}'| sed's Universe% Universe'

If [$SPACE-ge 90]

Then

Fty89@163.com

Fi

4. Monitor the usage of CPU and memory

#! / bin/bash

# script to capture system statistics

OUTFILE=/home/xu/capstats.csv

DATE='date +% m _% Y'

TIME='date +% k _ v% m _ v% s'

TIMEOUT='uptime'

VMOUT='vmstat 1 2'

USERS='echo $TIMEOUT | gawk'{print $4}'

LOAD='echo $TIMEOUT | gawk'{print $9}'| sed "_

FREE='echo $VMOUT | sed-n'/ [0-9] / p' | sed-n '2p' | gawk' {print $4}'

IDLE='echo $VMOUT | sed-n'/ [0-9] / p' | sed-n '2p' | gawk' {print $15}'

Echo "$DATE,$TIME,$USERS,$LOAD,$FREE,$IDLE" > > $OUTFILE

5. Omni-directional monitoring of the host

#! / bin/bash

# check_xu.sh

# 0 * / home/check_xu.sh

DAT= "`date +% Y% m% d`"

HOUR= "`date +% H`"

DIR= "/ home/oslog/host_$ {DAT} / ${HOUR}"

DELAY=60

COUNT=60

# whether the responsible directory exist

If! Test-d ${DIR}

Then

/ bin/mkdir-p ${DIR}

Fi

# general check

Export TERM=linux

/ usr/bin/top-b-d ${DELAY}-n ${COUNT} > ${DIR} / top_$ {DAT} .log 2 > & 1 &

# cpu check

/ usr/bin/sar-u ${DELAY} ${COUNT} > ${DIR} / cpu_$ {DAT} .log 2 > & 1 &

# / usr/bin/mpstat-P 0 ${DELAY} ${COUNT} > ${DIR} / cpu_0_$ {DAT} .log 2 > & 1 &

# / usr/bin/mpstat-P 1 ${DELAY} ${COUNT} > ${DIR} / cpu_1_$ {DAT} .log 2 > & 1 &

# memory check

/ usr/bin/vmstat ${DELAY} ${COUNT} > ${DIR} / vmstat_$ {DAT} .log 2 > & 1 &

# I/O check

/ usr/bin/iostat ${DELAY} ${COUNT} > ${DIR} / iostat_$ {DAT} .log 2 > & 1 &

# network check

/ usr/bin/sar-n DEV ${DELAY} ${COUNT} > ${DIR} / net_$ {DAT} .log 2 > & 1 &

# / usr/bin/sar-n EDEV ${DELAY} ${COUNT} > ${DIR} / net_edev_$ {DAT} .log 2 > & 1 &

Automatically executed hourly in crontab:

0 * / home/check_xu.sh

This will generate hourly cpu, memory, network, and IO statistics in the / home/oslog/host_yyyymmdd/hh directory.

If there is a problem in a certain period of time, you can look at the corresponding log information to see what the performance of the host is at that time.

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