linux 下 ifcfg-ethx配置和解析
網路介面配置檔案
[[email protected] ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
TYPE=Ethernet #網絡卡型別
DEVICE=eth0 #網絡卡介面名稱
ONBOOT=yes #系統啟動時是否自動載入
BOOTPROTO=static #啟用地址協議 --static:靜態協議 --bootp協議 --dhcp協議
IPADDR=192.168.1.11 #網絡卡IP地址
NETMASK=255.255.255.0 #網絡卡網路地址
GATEWAY=192.168.1.1 #網絡卡閘道器地址
DNS1=10.203.104.41 #網絡卡DNS地址
HWADDR=00:0C:29:13:5D:74 #網絡卡裝置MAC地址
BROADCAST=192.168.1.255 #網絡卡廣播地址
重新匯入ifcfg-eth0網路配置檔案
[
Shutting down interface eth0: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: [ OK ]
網絡卡介面關閉與啟用
[[email protected] ~]# ifdown eth0 #關閉網路
[[email protected] ~]# ifup eth0 #啟動網路
網路服務啟動與關閉
方法一:
[
[[email protected] ~]# service network start #啟動網路服務
[[email protected] ~]# service network restart #重啟網路服務
方法二：
[[email protected] ~]# /etc/init.d/network stop
[[email protected] ~]# /etc/init.d/network start
[[email protected] ~]# /etc/init.d/network restart
網絡卡狀態查詢
[
Configured devices:
lo eth0
Currently active devices:
lo eth0
臨時配置網絡卡資訊，無需重啟。
[[email protected] ~]# ifconfig eth0 10.1.1.10 netmask 255.0.0.0
檢視網絡卡介面資訊，預設列出所有介面
[[email protected] ~]# 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)
檢視當前路由及閘道器資訊
[[email protected] ~]# 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
網路配置：
eth0
靜態ip：192.168.1.106
子網掩碼 255.255.255.0
預設閘道器 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
參考：https://www.cnblogs.com/arvintang/p/5990599.html
網路介面配置檔案
[[email protected] ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# Intel Corporation 82545EM Gigabit Ethernet Controller (Copper)
TYPE=Ethernet #網絡卡型別
DEVICE=eth0 #網絡卡介面名稱
ONBOOT=yes #系統啟動時是否自動載入
BOOTPROTO=static #啟用地址協議 --static:靜態協議 --bootp協議 --dhcp協議
IPADDR=192.168.1.11 #網絡卡IP地址
NETMASK=255.255.255.0 #網絡卡網路地址
GATEWAY=192.168.1.1 #網絡卡閘道器地址
DNS1=10.203.104.41 #網絡卡DNS地址
HWADDR=00:0C:29:13:5D:74 #網絡卡裝置MAC地址
BROADCAST=192.168.1.255 #網絡卡廣播地址
重新匯入ifcfg-eth0網路配置檔案
[[email protected] ~]# /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 ]
網絡卡介面關閉與啟用
[[email protected] ~]# ifdown eth0 #關閉網路
[[email protected] ~]# ifup eth0 #啟動網路
網路服務啟動與關閉
方法一:
[[email protected] ~]# service network stop #關閉網路服務
[[email protected] ~]# service network start #啟動網路服務
[[email protected] ~]# service network restart #重啟網路服務
方法二：
[[email protected] ~]# /etc/init.d/network stop
[[email protected] ~]# /etc/init.d/network start
[[email protected] ~]# /etc/init.d/network restart
網絡卡狀態查詢
[[email protected] ~]# service network status
Configured devices:
lo eth0
Currently active devices:
lo eth0
臨時配置網絡卡資訊，無需重啟。
[[email protected] ~]# ifconfig eth0 10.1.1.10 netmask 255.0.0.0
檢視網絡卡介面資訊，預設列出所有介面
[[email protected] ~]# 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)
檢視當前路由及閘道器資訊
[[email protected] ~]# 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
網路配置：
eth0
靜態ip：192.168.1.106
子網掩碼 255.255.255.0
預設閘道器 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
參考：https://www.cnblogs.com/arvintang/p/5990599.html