Centos 7開啟網卡自動擷取IP

標籤：

Centos7預設安裝是沒有開啟配置網卡資訊的，無法訪問外網。

下邊配置開啟網路自動擷取Ip地址

1.查看網卡資訊

執行Ifconfig

eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500        inet6 fe80::20c:29ff:fee8:8637  prefixlen 64  scopeid 0x20<link>        ether 00:0c:29:e8:86:37  txqueuelen 1000  (Ethernet)        RX packets 1121  bytes 98968 (96.6 KiB)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 179  bytes 25233 (24.6 KiB)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536        inet 127.0.0.1  netmask 255.0.0.0        inet6 ::1  prefixlen 128  scopeid 0x10<host>        loop  txqueuelen 0  (Local Loopback)        RX packets 900  bytes 78372 (76.5 KiB)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 900  bytes 78372 (76.5 KiB)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

eno16777736代表網卡的名稱，ether 00:0c:29:e8:86:37代表網卡的Mac地址
2.配置網卡開始網路連接

cd /etc/system/network-scripts/
vi ifcfg-eno16777736

HWADDR=00:0C:29:E8:86:37TYPE=EthernetBOOTPROTO=dhcpDEFROUTE=yesPEERDNS=yesPEERROUTES=yesIPV4_FAILURE_FATAL=noIPV6INIT=yesIPV6_AUTOCONF=yesIPV6_DEFROUTE=yesIPV6_PEERDNS=yesIPV6_PEERROUTES=yesIPV6_FAILURE_FATAL=noNAME=eno16777736UUID=79d6c916-aab8-45e4-a163-37ae73393d26ONBOOT=no

將ONBOOT= no改成ONBOOT=yes

3.重啟網路

service network restart

4.再執行ifconfig

eno16777736: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500        inet 192.168.159.128  netmask 255.255.255.0  broadcast 192.168.159.255        inet6 fe80::20c:29ff:fee8:8637  prefixlen 64  scopeid 0x20<link>        ether 00:0c:29:e8:86:37  txqueuelen 1000  (Ethernet)        RX packets 1699  bytes 140091 (136.8 KiB)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 333  bytes 42669 (41.6 KiB)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536        inet 127.0.0.1  netmask 255.0.0.0        inet6 ::1  prefixlen 128  scopeid 0x10<host>        loop  txqueuelen 0  (Local Loopback)        RX packets 900  bytes 78372 (76.5 KiB)        RX errors 0  dropped 0  overruns 0  frame 0        TX packets 900  bytes 78372 (76.5 KiB)        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

inet 192.168.159.128 代表IP地址

Centos 7開啟網卡自動擷取IP