VM Centos7 Minimal 简单初始化操作 自用非教程

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1. 改IP

vi /etc/sysconfig/network-scripts/ifcfg-ens33

# 不改动
TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
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=ee4673db-6db1-4e77-b770-dcd2b0ccc45a
DEVICE=ens33
# 改下面
BOOTPROTO=static
ONBOOT=yes
IPADDR=192.168.4.11
GATEWAY=192.168.4.2
NETMASK=255.255.255.0

2. 改DNS

echo -e "nameserver 114.114.114.114\nnameserver 8.8.8.8" >> /etc/resolv.conf

3. 改yum源

下载阿里云的yum源文件（失效百度找）
http://mirrors.aliyun.com/repo/Centos-7.repo
覆盖文件
/etc/yum.repos.d/Centos-Base.repo
重新生成缓存
yum clean all
yum makecache

4. 改主机名

hostnamectl set-hostname myhostname

5. 关防火墙

systemctl stop firewalld
systemctl disable firewalld

X. *部分网络错误解决方法

Q: Failed to start LSB: Bring up/down networking

systemctl stop NetworkManager
systemctl disable NetworkManager