我在自己一台老旧的DELL电脑上安装了cent os7作为平常的开发服务器,笔记本一般都有WIFI和有线网卡,那就把这台笔记本设置双网卡的服务器吧。更多请看(www.omob.cc)
由于我安装cent os7的时候,采取最小化安装,不过在安装过程中图形化设置阶段我打开了wifi连接,其余的按自己的设置我就不多讲了。
在系统安装好了后,开机后wifi自动连接了,但是有线网卡没有连接。
- 当我们发现无法联网时,我们运行下面命令或者ping命令。
发现wlp1s0(wifi网卡)连接正常有了局域网地址192.168.31.101
,p4p1(有线网卡)的确没有连接,暂时没有局域网地。
[root@thinkcent thinktik]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: p4p1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 84:8f:69:d1:5c:97 brd ff:ff:ff:ff:ff:ff
3: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 68:5d:43:7f:90:f4 brd ff:ff:ff:ff:ff:ff
inet 192.168.31.101/24 brd 192.168.31.255 scope global noprefixroute dynamic wlp1s0
valid_lft 42317sec preferred_lft 42317sec
inet6 fe80::ebc:6394:c13d:b0ad/64 scope link noprefixroute
valid_lft forever preferred_lft forever
- 我们去修改网卡配置文件,尝试把p4p1(有线网络)连接打开
[root@thinkcent thinktik]# cd /etc/sysconfig/network-scripts/
[root@thinkcent network-scripts]# ls
ifcfg-lo ifdown-ppp ifup-ippp ifup-TeamPort
ifcfg-p4p1 ifdown-routes ifup-ipv6 ifup-tunnel
ifcfg-qwert45 ifdown-sit ifup-isdn ifup-wireless
ifdown ifdown-Team ifup-plip init.ipv6-global
ifdown-bnep ifdown-TeamPort ifup-plusb keys-qwert45
ifdown-eth ifdown-tunnel ifup-post network-functions
ifdown-ippp ifup ifup-ppp network-functions-ipv6
ifdown-ipv6 ifup-aliases ifup-routes
ifdown-isdn ifup-bnep ifup-sit
ifdown-post ifup-eth ifup-Team
[root@thinkcent network-scripts]# vim ifcfg-p4p1
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=dhcp
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
NAME=p4p1
UUID=eb70970c-92a8-4836-9dc6-1c954b1ff76b
DEVICE=p4p1
#修改这里为yes,把ONBOOT改为yes,并保存退出
ONBOOT=yes
#重启网络
[root@thinkcent network-scripts]# service network restart
# p4p1连接正常 有了局域网的IP地址192.168.31.58,连接正常
[root@thinkcent network-scripts]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo
valid_lft forever preferred_lft forever
inet6 ::1/128 scope host
valid_lft forever preferred_lft forever
2: p4p1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 84:8f:69:d1:5c:97 brd ff:ff:ff:ff:ff:ff
inet 192.168.31.58/24 brd 192.168.31.255 scope global noprefixroute dynamic p4p1
valid_lft 42286sec preferred_lft 42286sec
inet6 fe80::7622:7ed9:e8b8:3cb8/64 scope link noprefixroute
valid_lft forever preferred_lft forever
3: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP group default qlen 1000
link/ether 68:5d:43:7f:90:f4 brd ff:ff:ff:ff:ff:ff
inet 192.168.31.101/24 brd 192.168.31.255 scope global noprefixroute dynamic wlp1s0
valid_lft 41310sec preferred_lft 41310sec
inet6 fe80::ebc:6394:c13d:b0ad/64 scope link noprefixroute
valid_lft forever preferred_lft forever