Vmware virtual machine to install CenOS 7 system

1. Download the CenOS system

Download the system CenOS official website under the
CenOS official website
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Two, install CenOS 7

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You choose the processor and the number of cores according to your needs. Generally, one processor and two cores are OK.

Choose the memory allocated for the virtual machine, generally about 1~2G is enough.

Choose NAT network type

Choose the size of the disk allocated for the virtual machine, generally 20G is appropriate.
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Choose the Centos mirror you downloaded here.

Set the virtual machine power-on password So

far, our virtual machine is installed, but he can't access the network and needs to configure the ip address.
Here you can shut down and back up the virtual machine

Three, network configuration

Confirm that the virtual machine selects the NAT network mode.
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View the computer network information. After

viewing, you can return to the virtual machine page and enter the following commands in the virtual machine

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

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According to the previously viewed network information, click the keyboard insert button to configure the network for the CenOS 7 system. After the configuration is complete, press ESC and enter: wq (note the English colon)

TYPE=Ethernet
PROXY_METHOD=none
BROWSER_ONLY=no
BOOTPROTO=static
DEFROUTE=yes
IPV4_FAILURE_FATAL=no
IPV6INIT=yes
IPV6_AUTOCONF=yes
IPV6_DEFROUTE=yes
IPV6_FAILURE_FATAL=no
IPV6_ADDR_GEN_MODE=stable-privacy
IPADDR=192.168.199.55
GATEWAY=192.168.199.2
DNS1=192.168.199.2
NAME=ens33
UUID=59738a3e-a489-43e0-8284-248329bd3c8f
DEVICE=ens33
ONBOOT=yes

Restart the network card after modifying the configuration

systemctl restart network

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Four, installation tools

Now the system still cannot use ifconfig and vim commands, we execute the following three commands to install them in sequence.

yum update
yum install net‐tools
yum install vim

Option to turn off the firewall

systemctl stop firewalld      #关闭防火墙服务网
systemctl disable firewalld   #设置防火墙服务开机不启动

Five, configure Alibaba Cloud image

#安装wget
yum -y install wget
# 备份旧的 yum 源
mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
# 下载阿里云 repo
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
# 清除缓存
yum clean all 
# 生成缓存
yum makecache

At this point, the virtual machine CenOS 7 has been installed and configured, and novices can take a snapshot here to facilitate the restoration of the virtual machine in the future.

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