Virtual machine installation and configuration

1. install Vmware

• Open the website
  
• Download the file
  
• Double click the downloaded file to install the app
• Open application
  

2. Install the image Here the centos7

• Download mirroring
  

3. Create a virtual machine

technological process ：
Click create new virtual machine =》 next step =》 Choose download good centos The next step of the mirror path =》 Name the virtual machine centos7, Fill in the username and password , Be careful root The password of the user will be the same as that of the newly created user =》 next step =》 Fill in the number of processors , Fill in the next step according to your computer configuration =》 Set the memory size to 4096 next step =》 next step =》... As recommended =》 Select the virtual machine creation location. The file name cannot have Chinese =》 complete =》 Automatic installation

After installation, you can use root The user login

4. Virtual machine related operations

You can choose to restart

5. Virtual machine configuration

• View virtual machine ip Address

$ ifconfig         // You can view the virtual machine IP

• use ping Check whether the network of the virtual machine is available

$ ping 192.168.228.128

• Modify static ip

& vim /etc/sysconfig/network-scripts/ifcfg-ens33

# modify 
bootproto=static(dhcp)   
onboot=yes

# increase 
IPADDR=192.168.228.128
NETMASK=255.255.255.0
GATEWAY=192.168.228.2
DNS1=8.8.8.8

Save and exit after modification

• Modify host name

 Open file 
& vim /etc/hostname    

Change the name

• Restart the network

$ systemctl restart network

• Turn off firewall

$ systemctl stop firewalld
$ systemctl disable firewalld

• close selinux

vim /etc/selinux/config

#  modify 
SELINUX=disabled

6. Restart the virtual machine

$ reboot 

7. Cloning of virtual machines （ Used to build clusters ）

Be careful ： Before cloning and it should be in the off state

• Right click and select Rename virtual machine name
• Right click =》 management =》 clone =》 next step =》 Select create complete clone =》 Name the virtual machine and select the installation location. Next =》
• Modify the configuration of the cloned virtual machine
  Right click on the newly cloned virtual machine =》 Set up =》 network adapter =》 senior =》MAC Address regeneration =》 Turn on virtual machine =》vim /etc/hostname Modify host name ,vim /etc/sysconfig/network-scripts/ifcfg-ens33 modify ip The address cannot be the same as the clone machine , Restart the network systemctl restart network, Restart the virtual machine reboot

8.ssh Remote login use mobaxterm Connecting virtual machines

• Check whether there is... On the virtual machine sshd$ systemctl status sshd

• without sshd install sshd$ yum install -y openssl openssh-server,$ systemctl restart sshd & systemctl enable sshd
  

• Download the free version mobaxterm And install
  
  Create connection
  

Fill in the goal ip Use root The user login

Click create and enter root The user's password creates a connection

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• install ftp The server File transfer protocol
  yum install vsftpd
systemctl start vsftpd
systemctl status vsftpd
systemctl enable vsftpd

• establish SFTP Connect
  

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