Zabbix监控TCP status

henda

　　监控原理
　　ss -ant | awk 'NR>1 {++s[$1]} END {for(k in s) print k,s[k]}'
　　LAST-ACK 5
　　ESTAB 348
　　FIN-WAIT-1 11
　　CLOSING 1
　　FIN-WAIT-2 41
　　TIME-WAIT 2447
　　LISTEN 8
　　状态值的解释
　　ESTABLISHED:　　The socket has an established connection.
　　SYN_SENT:　　The socket is actively attempting to establish a connection.
　　SYN_RECV:　　A connection request has been received from the network.
　　FIN_WAIT1:　　The socket is closed, and the connection is shutting down.
　　FIN_WAIT2:　　Connection is closed, and the socket is waiting for a shutdown from the remote end.
　　TIME_WAIT:　　The socket is waiting after close to handle packets still in the network.
　　CLOSED:　　The socket is not being used.
　　CLOSE_WAIT:　　The remote end has shut down, waiting for the socket to close.
　　LAST_ACK:　　The remote end has shut down, and the socket is closed. Waiting for acknowledgement.
　　LISTEN:　　The  socket  is listening for incoming connections.
　　CLOSING:　　Both sockets are shut down but we still don’t have all our data sent.
　　监控脚本
　　

#!/bin/bash　　
#
2017/1/09 pdd　　
# 未出现的状态值取0
　　

　　
status() {
　　ss
-ant | awk 'NR>1 {++s[$1]} END {for(k in s) print k,s[k]}'　　
}
　　

　　

case $1 in　　LISTEN)
　　listen
=`status | grep "$1" | awk '{print $2}'`

[

-z "$listen" ] && echo 0 || echo "$listen"　　;;
　　SYN
-SENT)　　syn_sent
=`status | grep "$1" | awk '{print $2}'`

[

-z "$syn_sent" ] && echo 0 || echo "$syn_sent"　　;;
　　SYN
-RCVD)　　syn_rcvd
=`status | grep "$1" | awk '{print $2}'`

[

-z "$syn_rcvd" ] && echo 0 || echo "$syn_rcvd"　　;;
　　ESTAB)
　　estab
=`status | grep "$1" | awk '{print $2}'`

[

-z "$estab" ] && echo 0 || echo "$estab"　　;;
　　FIN
-WAIT-1)　　fin_wait_1
=`status | grep "$1" | awk '{print $2}'`

[

-z "$fin_wait_1" ] && echo 0 || echo "$fin_wait_1"　　;;
　　CLOSE
-WAIT)　　close_wait
=`status | grep "$1" | awk '{print $2}'`

[

-z "$close_wait" ] && echo 0 || echo "$close_wait"　　;;
　　FIN
-WAIT-2)　　fin_wait_2
=`status | grep "$1" | awk '{print $2}'`

[

-z "$fin_wait_2" ] && echo 0 || echo "$fin_wait_2"　　;;
　　LAST
-ACK)　　last_ack
=`status | grep "$1" | awk '{print $2}'`

[

-z "$last_ack" ] && echo 0 || echo "$last_ack"　　;;
　　TIME
-WAIT)　　time_wait
=`status | grep "$1" | awk '{print $2}'`

[

-z "$time_wait" ] && echo 0 || echo "$time_wait"　　;;
　　CLOSED)
　　closed
=`status | grep "$1" | awk '{print $2}'`

[

-z "$closed" ] && echo 0 || echo "$closed"　　;;
*)echo "Usage: LISTEN SYN-SENT SYN-RCVD ESTAB FIN-WAIT-1 CLOSE-WAIT FIN-WAIT-2 LAST-ACK TIME-WAIT CLOSED"　　;;
　　

esac　　

　　添加配置文件
　　userparameter_tcp.conf  # 需要reload zabbix_agentd
　　

# TCP　　
UserParameter
=tcp.status

,/usr/local/zabbix/scripts/tcp-status.sh $1　　

　　添加监控模板