Server network card monitoring using

(1) Network card Monitoring script

#!/bin/bash

Echo-n "Please enter the interface (ETH0) for the NIC you want to query:"

Read ETH

echo "The NIC interface you want to query is" $eth

Declare-i sec

Echo-n "Enter the time to wait (in seconds):"

Read sec

echo "You want to see a single (b,k,m) of traffic:"

Read type

If ["$sec" = "0"]

Then

Sec=1

Fi

echo "You calculate the average flow in the $sec seconds"

infirst=$ (awk '/' $eth '/{print $ '/proc/net/dev |sed ' s/' $eth '://')

outfirst=$ (awk '/' $eth '/{print $ A} '/proc/net/dev)

sumfirst=$ (($infirst + $outfirst))

Sleep $sec "s"

inend=$ (awk '/' $eth '/{print $ '/proc/net/dev |sed ' s/' $eth '://')

outend=$ (awk '/' $eth '/{print $ A} '/proc/net/dev)

sumend=$ (($inend + $outend))

sum=$ (($sumend-$sumfirst))

aver=$ (($sum/$sec))

ksum=$ (($sum/1024/8))

msum=$ (($sum/1024/1024/8))

kaver=$ (($ksum/$sec))

maver=$ (($msum/$sec))

Case $type in

m| M) echo $sec "The total flow in seconds is:" $msum "MB"

echo "Average flow:" $maver "mb/sec";;

k| K) echo $sec "The total flow in seconds is:" $ksum "KB"

echo "Average flow:" $kaver "kb/sec";;

*) echo $sec "The total flow in seconds is:" $sum "bytes"

echo "Average flow:" $aver "bytes/sec";;

Esac

(2) scripts (common)

#!/bin/bash

While ["1"]

Do

Eth=$1

rxpre=$ (Cat/proc/net/dev | grep $eth | tr: "" | awk ' {print $} ')

txpre=$ (Cat/proc/net/dev | grep $eth | tr: "" | awk ' {print $} ')

Sleep 1

rxnext=$ (Cat/proc/net/dev | grep $eth | tr: "" | awk ' {print $} ')

txnext=$ (Cat/proc/net/dev | grep $eth | tr: "" | awk ' {print $} ')

Clear

Echo-e "\ t RX ' date +%k:%m:%s ' TX"

rx=$ ((${rxnext}-${rxpre}))

tx=$ ((${txnext}-${txpre}))

if [[$RX-lt 1024x768]];then

rx= "${RX}B/S"

elif [[$RX-gt 1048576]];then

rx=$ (echo $RX | awk ' {print $1/1048576 "MB/S"} ')

Else

rx=$ (echo $RX | awk ' {print $1/1024 ' kb/s "} ')

Fi

if [[$TX-lt 1024x768]];then

tx= "${TX}B/S"

elif [[$TX-gt 1048576]];then

tx=$ (echo $TX | awk ' {print $1/1048576 "MB/S"} ')

Else

tx=$ (echo $TX | awk ' {print $1/1024 ' kb/s "} ')

Fi

Echo-e "$eth \ t $RX $TX"

Done

(4) Here is the usage

Test speed

/usr/local/nagios/libexec/check_traffic.sh-v 2c-c public-h 127.0.0.1-i 2-w 1200,1500-c 1700,1800-k-B

/usr/local/nagios/libexec/check_traffic.sh-v 2c-c public-h 127.0.0.1-i 2-w 300,350-c 500,600-k-B

Check_command check_traffic!1-w 600,600-c 800,800

Netstat-n | awk '/^tcp/{++s[$NF]}end{for (A in S) print A,s[a]} '

Network card structure of the FTP

Interface index 1 orresponding to Lo

Interface index 2 orresponding to EM1

Interface index 3 orresponding to EM2

Interface Index 4 orresponding to EM3

Interface index 5 orresponding to EM4

SNMP View live fill traffic (15 seconds of data)

Snmpdelta-c public-v 1-cs localhost if-mib::ifinucastpkts.3 if-mib::ifoutucastpkts.3

Server network card monitoring using