CentOS下网卡启动、配置等ifcfg-eth0教程
步骤1、配置/etc/sysconfig/network-scripts/ifcfg-eth0 里的文件。CentOS下的ifcfg-eth0的配置详情:
[root@localhost ~]# vim /etc/sysconfig/network-scripts/ifcfg-eth0 DEVICE="eth0" HWADDR="00:0C:29:FD:FF:2A" NM_CONTROLLED="yes" ONBOOT="yes" IPADDR=192.168.1.31 NETMASK=255.255.255.0 GATEWAY=192.168.1.1 BOOTPROTO=static
前面三行是系统睚带的,后面就是手动添加的。
这样设置扣,记得重启网卡:
[root@localhost ~]# /etc/init.d/network stop [root@localhost ~]# /etc/init.d/network start
行了,现在就可以PING得通网关了,如果还得上网,不必须设置DNS。设置DNS就详见步骤2
步骤2、修改dns
[root@localhost ~]# vi /etc/resolv.conf
在里面添加二个dns:
nameserver 202.96.134.133 nameserver 8.8.8.8
ok,大攻告成,即可上网了!!!!
以下是参考,如果按上面步骤不行,可以详细看以下内容:
网络接口配置文件
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 # Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) TYPE=Ethernet #网卡类型 DEVICE=eth0 #网卡接口名称 ONBOOT=yes #系统启动时是否自动加载 BOOTPROTO=static #启用地址协议 --static:静态协议 --bootp协议 --dhcp协议 IPADDR=192.168.1.11 #网卡IP地址 NETMASK=255.255.255.0 #网卡网络地址 GATEWAY=192.168.1.1 #网卡网关地址 DNS1=10.203.104.41 #网卡DNS地址 HWADDR=00:0C:29:13:5D:74 #网卡设备MAC地址 BROADCAST=192.168.1.255 #网卡广播地址
重新导入ifcfg-eth0网络配置文件
[root@localhost ~]# /etc/init.d/network reload Shutting down interface eth0: [ OK ] Shutting down loopback interface: [ OK ] Bringing up loopback interface: [ OK ] Bringing up interface eth0: [ OK ]
网卡接口关闭与激活
[root@localhost ~]# ifdown eth0 #关闭网络 [root@localhost ~]# ifup eth0 #启动网络
网络服务启动与关闭
方法一:
[root@localhost ~]# service network stop #关闭网络服务 [root@localhost ~]# service network start #启动网络服务 [root@localhost ~]# service network restart #重启网络服务
方法二:
[root@localhost ~]# /etc/init.d/network stop [root@localhost ~]# /etc/init.d/network start [root@localhost ~]# /etc/init.d/network restart
网卡状态查询
[root@localhost ~]# service network status Configured devices: lo eth0 Currently active devices: lo eth0
临时配置网卡信息,无需重启。
[root@localhost ~]# ifconfig eth0 10.1.1.10 netmask 255.0.0.0
查看网卡接口信息,默认列出所有接口
[root@localhost ~]# ifconfig eth0 Link encap:Ethernet HWaddr 00:0C:29:13:5D:74 inet addr:192.168.1.11 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe13:5d74/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:413 errors:0 dropped:0 overruns:0 frame:0 TX packets:572 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:47701 (46.5 KiB) TX bytes:64842 (63.3 KiB) Base address:0x2000 Memory:d8920000-d8940000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:407 errors:0 dropped:0 overruns:0 frame:0 TX packets:407 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:70759 (69.1 KiB) TX bytes:70759 (69.1 KiB)
查看当前路由及网关信息
[root@localhost ~]# netstat -r Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 192.168.1.0 * 255.255.255.0 U 0 0 0 eth0 169.254.0.0 * 255.255.0.0 U 0 0 0 eth0 default 192.168.1.1 0.0.0.0 UG 0 0 0 eth0
DNS:主机名:CentOS
主DNS:202.106.46.151
第二DNS:202.106.0.20
第三DNS:8.8.8.8
网络配置:eth0
静态ip:192.168.1.106
子网掩码 255.255.255.0
默认网关 IP 192.168.1.1DEVICE=eth0IPADDR=192.168.1.106NETMASK=255.255.255.0BROADCAST=192.168.1.255ONBOOT=yesBOOTPROTO=noneGATEWAY=192.168.1.1TYPE=Ethernet"/etc/sysconfig/network-scripts/ifcfg-eth0" 11L, 187C
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