centos7连网

本地虚拟机最小化安装centos7后，可能不是自动连网，按下面办法：

[root@localhost ~]# cd /etc/sysconfig/network-scripts/
[root@localhost network-scripts]# ls
ifcfg-eno16777736  ifdown-bnep  ifdown-ippp  ifdown-post    ifdown-sit       ifdown-tunnel  ifup-bnep  ifup-ippp  ifup-plip   ifup-ppp     ifup-Team      ifup-wireless      network-functions-ipv6
ifcfg-lo           ifdown-eth   ifdown-ipv6  ifdown-ppp     ifdown-Team      ifup           ifup-eth   ifup-ipv6  ifup-plusb  ifup-routes  ifup-TeamPort  init.ipv6-global
ifdown             ifdown-ib    ifdown-isdn  ifdown-routes  ifdown-TeamPort  ifup-aliases   ifup-ib    ifup-isdn  ifup-post   ifup-sit     ifup-tunnel    network-functions
#注意第一个ifcfg-eno16777736，不同的机器上，这个名字可能不一定相同，若有多块网卡，会有多个这样的文件。
[root@localhost network-scripts]# vi ifcfg-eno16777736
TYPE=Ethernet
BOOTPROTO=dhcp
DEFROUTE=yes
PEERDNS=yes
PEERROUTES=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_PEERDNS=yes
IPV6_PEERROUTES=yes
IPV6_FAILURE_FATAL=no
NAME=eno16777736
UUID=8e869d07-d154-492b-be8b-1c5237206e0a
DEVICE=eno16777736
ONBOOT=no   #把这个改为yes

重加载网络：

[root@localhost network-scripts]# service network restart
[root@localhost network-scripts]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN 
    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: eno16777736: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:50:56:26:1d:10 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.201/24 brd 192.168.1.255 scope global dynamic eno16777736
       valid_lft 6963sec preferred_lft 6963sec
    inet6 fe80::250:56ff:fe26:1d10/64 scope link 
       valid_lft forever preferred_lft forever
[root@localhost network-scripts]#