centos7精简版安装后配置

1.修改网络
先命令 ip addr查看自己网卡的名称
然后编辑 vi /etc/sysconfig/network-scripts/ifcfg-ens33 centos7 我的网卡名字是ens33
把ONBOOT=no 改成yes

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=ens33
UUID=0fda965c-0ec3-4143-81e6-24e7ab5ae77d
DEVICE=ens33
ONBOOT=yes

然后重启 service network restart

2.问题2 使用不了yum 命令

Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
There are no enabled repos.
 Run "yum repolist all" to see the repos you have.
 To enable Red Hat Subscription Management repositories:
     subscription-manager repos --enable 
 To enable custom repositories:
     yum-config-manager --enable 

步骤1 备份yum 数据源
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
步骤2 下载对应版本repo文件, 放入/etc/yum.repos.d/(操作前请做好相应备份)
下载地址centos7:http://mirrors.163.com/.help/CentOS7-Base-163.repo
下载地址centos6:http://mirrors.163.com/.help/CentOS6-Base-163.repo
步骤3
运行以下命令生成缓存

yum clean all
yum makecache

结束!

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