一、添加永久ip
編輯/etc/sysconfig/network-scripts/ifcfg-eth0文件:
網絡接口配置文件 [root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0 # Intel Corporation 82545EM Gigabit Ethernet Controller (Copper) TYPE=Ethernet #網卡類型 DEVICE=eth0 #網卡接口名稱 ONBOOT=yes #系統啟動時是否自動加載 BOOTPROTO=static #啟用地址協議 --static:靜態協議 --bootp協議 --dhcp協議 IPADDR=192.168.1.11 #網卡IP地址 NETMASK=255.255.255.0 #網卡網絡地址 GATEWAY=192.168.1.1 #網卡網關地址 DNS1=10.203.104.41 #網卡DNS地址 HWADDR=00:0C:29:13:5D:74 #網卡設備MAC地址 BROADCAST=192.168.1.255 #網卡廣播地址
重新導入ifcfg-eth0網絡配置文件 [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 ] 網卡接口關閉與激活 [root@localhost ~]# ifdown eth0 #關閉網絡 [root@localhost ~]# ifup eth0 #啟動網絡 網絡服務啟動與關閉 方法一: [root@localhost ~]# service network stop #關閉網絡服務 [root@localhost ~]# service network start #啟動網絡服務 [root@localhost ~]# service network restart #重啟網絡服務 方法二: [root@localhost ~]# /etc/init.d/network stop [root@localhost ~]# /etc/init.d/network start [root@localhost ~]# /etc/init.d/network restart 網卡狀態查詢 [root@localhost ~]# service network status Configured devices: lo eth0 Currently active devices: lo eth0 臨時配置網卡信息,無需重啟。 [root@localhost ~]# ifconfig eth0 10.1.1.10 netmask 255.0.0.0
查看網卡接口信息,默認列出所有接口 [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)
查看當前路由及網關信息 [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:
主機名:CentOS
主DNS:202.106.46.151
第二DNS:202.106.0.20
第三DNS:8.8.8.8
網絡配置:
eth0
靜態ip:192.168.1.106
子網掩碼 255.255.255.0
默認網關 IP 192.168.1.1
DEVICE=eth0
IPADDR=192.168.1.106
NETMASK=255.255.255.0
BROADCAST=192.168.1.255
ONBOOT=yes
BOOTPROTO=none
GATEWAY=192.168.1.1
TYPE=Ethernet
"/etc/sysconfig/network-scripts/ifcfg-eth0" 11L, 187C
二、設置永久路由的方法:
1.在/etc/rc.local里添加
方法:
route add -net 192.168.3.0/24 dev eth0
route add -net 192.168.2.0/24 gw 192.168.2.254
2.在/etc/sysconfig/network里添加到末尾
方法:GATEWAY=gw-ip 或者 GATEWAY=gw-dev
3./etc/sysconfig/static-routes : (沒有static-routes的話就手動建立一個這樣的文件)
any net 192.168.3.0/24 gw 192.168.3.254
any net 10.250.228.128 netmask 255.255.255.192 gw 10.250.228.129
三、開啟永久路由轉發功能
編輯/etc/sysctl.conf配置文件