73-CentOS-查看系統最大連接數的IP

#netstat命令沒裝
[root@C7-3 ~]# netstat -n
-bash: netstat: command not found

#查找該命令來自哪個包
[root@C7-3 ~]# yum provides */netstat
...............
net-tools-2.0-0.25.20131004git.el7.x86_64 : Basic networking tools
Repo        : base
Matched from:
Filename    : /bin/netstat
...............
#安裝
[root@C7-3 ~]# yum -y install net-tools

#取出最大連接IP
[root@C7-3 ~]# netstat -n|awk '/^tcp/{print $5}'|awk -F: '{print $1}'|sort|uniq -c|sort -rn