Monday, 7 February 2011

Linux常用命令

测试网络的连通性:
[root@localhost ~]# ping -c 3 a.b.c.d

检查网络接口状态:
[root@localhost ~]# ifconfig -a

关闭网络接口eth0:
[root@localhost ~]# ifconfig eth0 down

打开网络接口eth0:
[root@localhost ~]# ifconfig eth0 up

为网络接口eth0设置网址:
[root@localhost ~]# ifconfig eth0 a.b.c.d netmask 255.255.255.0

查看内核路由表的配置:
[root@localhost ~]# route

添加默认网关:
[root@localhost ~]# route add default gw a.b.c.d

显示数据包所经过的路由:
[root@localhost ~]# traceroute a.b.c.d

显示网络端口状态:
[root@localhost ~]# netstat -penal

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