阿凯的生活记录

Record some commonly used commands

View the public and private keys on this machine

1. Enter the .ssh directory: cd ~/.ssh
2. Find the xxxx.pub file: ls
3. View the public key content: cat xxxx.pub or vim xxxx.pub
4. The file without an extension with the same name is the private key

SSH login command
ssh -i ~/.ssh/private_key_filename opc@oracle_ip

Switch to the root user after logging in
sudo -i