centos 7 使用tcptrack 查看网络流量
[root@bogon ~]# yum install -y libpcap-devel libpcap
[root@bogon ~]# wget http://packages.psychotic.ninja/6/base/x86_64/RPMS/tcptrack-1.4.2-9.el6.psychotic.x86_64.rpm
[root@bogon ~]# rpm -ivh tcptrack-1.4.2-9.el6.psychotic.x86_64.rpm
[root@bogon ~]# tcptrack -i ens33