指定端口监控流量的输入及输入

1. 安装iftop

yum -y install iftop

2. 编写脚本

#!/bin/bash
while true
do
iftop -nNP -t -s 1 |egrep   '[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}:9092|[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}:[0-9]{1,5}' >>/root/test_iftop_log/test-iftop.log
# 配置文件
Iftop_file=/root/test_iftop_log/test-iftop.log
Change_file=/root/test_iftop_log/change_iftop.log
INPUT_File=/root/test_iftop_log/input_iftop.log
OUTPUT_File=/root/test_iftop_log/output_iftop.log
Iftop_Log=/root/test_iftop_log/iftop.log
number_file=/root/test_iftop_log/line_number
Change_numeber_file=/root/test_iftop_log/change_line_number
IFTOP_OUT=/root/test_iftop_log/iftop.out
TIME_LOG=/root/test_iftop_log/iftop_TIME
TIME_DATA=`date +%F-%H-%M`
BAK_Iftop_Log=/root/test_iftop_log/backup/${TIME_DATA}_iftop.log
# Md5sum文件
Md5Sum_Path=/root/test_iftop_log/md5_file/iftop.md5sum
Md5Sum_Change=/root/test_iftop_log/md5_file/change.md5sum
LS=`ls -lh /root/test_iftop_log/iftop.log |awk '{print $5}'`
# 
line_number=`cat ${number_file}`
Change_line_numeber=`cat ${Change_numeber_file}`

#Process=`$(ps -ef) |grep -v grep|grep iftop|wc -l`

Md5Sum_judge=`md5sum -c ${Md5Sum_Path} |awk '{print $2}'`
Md5Sum_judge_Change=`md5sum -c ${Md5Sum_Change} |awk '{print $2}'`

if [ ! -f $Md5Sum_Path ];then
	md5sum $Iftop_file > $Md5Sum_Path

elif [ ! -f $Change_file ];then
	cat ${Iftop_file}|awk 'NF==7{$1=a;print;next}1'  $Iftop_file |column -t >${Change_file}

elif [ ! -f $Md5Sum_Change ];then
 	md5sum $Change_file > $Md5Sum_Change

fi

if [[ ${Md5Sum_judge} = "FAILED" ]];then
	rm  -rf $Md5Sum_Path
	md5sum $Iftop_file > $Md5Sum_Path
	awk "NR>$line_number" $Iftop_file|awk 'NF==7{$1=a;print;next}1' |column -t >>${Change_file}
	sed -e  "s/:/ /g" ${Change_file} -i
	# sed -i 's/[<=>]//g' ${Change_file}
	cat ${Iftop_file}|wc -l >${number_file}
fi
sed -i  "s/B//g" ${Change_file}
sed -i  "s/b//g" ${Change_file}
sed -i 's/KB//g' ${Change_file}
sed -i 's/Kb//g' ${Change_file}
sed -i  "s/K//g" ${Change_file}
for i in `egrep -o  '[0-9]{1,4}\.[0-9]{1,4}MB|[0-9]{1,4}MB' ${Change_file}`
do
num=`awk "BEGIN{print ${i%MB}*1024}"`
sed -i "s/$i/$num/g"  ${Change_file}
done

for i in `egrep -o  '[0-9]{1,4}\.[0-9]{1,4}MB|[0-9]{1,4}GB' ${Change_file}`
do
num=`awk "BEGIN{print ${i%MB}*1024*1024}"`
sed -i "s/$i/$num/g"  ${Change_file}
done

if [[ ${Md5Sum_judge_Change} = "FAILED" ]];then
	rm -rf ${Md5Sum_Change}
	md5sum ${Change_file} > ${Md5Sum_Change}
	sed -n '1~2p' ${Change_file} >${INPUT_File}
	sed -n '2~2p' ${Change_file} >${OUTPUT_File}
	paste -d '\t' ${INPUT_File}  ${OUTPUT_File} > ${IFTOP_OUT}
	cat ${IFTOP_OUT}| awk '{print $0" " strftime("%Y-%m-%d-%H:%M:%S",systime())}' >${TIME_LOG}
	grep '9092' ${TIME_LOG} >> ${Iftop_Log}
	cat ${Change_file}|wc -l >${Change_numeber_file}
fi
sleep 1

done

3. 配置logstash

input {
  file {
    path => "/root/test_iftop_log/iftop.log"
    #start_position => beginning
}
}
filter {
  mutate {
    split => {"message" => " "}
    add_field => { "input_IP" => "%{[message][0]}" }
    add_field => { "input_port" => "%{[message][1]}" }
    add_field => { "input_symbol" => "%{[message][2]}" }
    add_field => { "input_last2s" => "%{[message][3]}" }
    add_field => { "input_last10s" => "%{[message][4]}" }
    add_field => { "input_last40s" => "%{[message][5]}" }
    add_field => { "input_cumulative" => "%{[message][6]}" }
    add_field => { "output_IP" => "%{[message][7]}" }
    add_field => { "output_port" => "%{[message][8]}" }
    add_field => { "output_symbol" => "%{[message][9]}" }
    add_field => { "output_last2s" => "%{[message][10]}" }
    add_field => { "output_last10s" => "%{[message][11]}" }
    add_field => { "output_last40s" => "%{[message][12]}" }
    add_field => { "output_cumulative" => "%{[message][13]}" }
    add_field => { "logdate" => "%{[message][14]}" }
  }
  #date { 
  #  match => [ "logdate", "yyyy/MM/dd HH:mm:ss"] 
  #}
}
output {
  elasticsearch {
    hosts => ["127.0.0.1:9200"]
    index => "iotplatform-iftop-out-%{+yyyy-MM-dd}"
 }
}

3. 执行脚本启动logstash收集数据

# 后台执行脚本
nohup sh iftop.sh &
# 启动logstash
/opt/logstash/bin/logstash -f /opt/logstash/yum/iftop.conf

4. 效果图展示

标签：监控,iftop,Md5Sum,端口,输入,file,test,Change,log
来源： https://blog.csdn.net/yuansheng730/article/details/120872360