Vscode secret-free login remote linux server, springboard machine secret-free remote login

1. Generate public key and private key locally

ssh-keygen -t rsa -b 4096

The above command generates two files, id_rsa and id_rsa.pub, in the .ssh folder of the user root directory, id_rsa is the private key file, and id_rsa.pub is the public key file

2. Copy the content of the public key to the authorized_keys of the remote server

Log in to the server, open the .ssh folder, create the authorized_keys file, modify the file permission to 600, and use vim to copy the local public key content to authorized_keys

cd ~/.ssh
touch authorized_keys
chmod 600 authorized_keys
vim authorized_keys # 这步把id_rsa.pub的内容拷贝进去，保存退出

3. Modify the vscode configuration file and specify the location of the private key

Open the above config file and add the IdentityFile field:

Host Server
  HostName 目标机ip
  User liaobaoxin
  IdentityFile "/Users/baoxin/.ssh/id_rsa" #私钥地址

After that, you can log in remotely without password according to the previous process.

4. Springboard machine password-free login

Follow step 2 to create authorized_keys files in the .ssh folder of both the springboard machine and the target machine , copy the local public key content, change the file permissions to 600, modify the vscode configuration file, and add the following to both the springboard machine and the target machineIdentityFile [本地私钥地址] :

Host JumpMachine
  #跳板机ip
  HostName 跳板机ip
  #登入的用户名，可以不是root
  User liaobaoxin
  #上文提到的sshd服务端口
  Port 22
  IdentityFile "/Users/baoxin/.ssh/id_rsa"
 
#目标机名称，可以随便取
Host TargetMachine
  #目标机ip
  HostName 目标机ip
  #登入的用户名，可以不是root
  User liaobaoxin
  IdentityFile "/Users/baoxin/.ssh/id_rsa"
  #特别注意这里不需要设置端口了
  #起跳转作用的代码，可以直接复制，注意JumpMachine需要与前面跳板机名称相同
  ProxyCommand ssh -W %h:%p JumpMachine

Log in to the target machine remotely without entering a password