18 commands to monitor network bandwidth on Linux server – BinaryTides https://www.binarytides.com/linux-commands-monitor-network/ yum install iptraf iptraf iptraf-ng 网卡 ip 端口 监控 netstat linux win [root@hadoop2 ~]# netstat Active Internet connect
CentOS 配置防火墙操作实例(启.停.开.闭端口):注:防火墙的基本操作命令:查询防火墙状态:[root@localhost ~]# service iptables status停止防火墙:[root@localhost ~]# service iptables stop启动防火墙:[root@localhost ~]# service iptables start重启防火墙:[root@localhost ~]# service iptables restart永久关闭防