OCI Instance Connection From Putty

Phase 1: Convert Your Private Key to .ppk (.key or .pem file) using PuTTYgen


OCI typically provides private keys in .pem or .key format, but PuTTY requires a .ppk format. 
  • Open PuTTYgen
  • Load your file
  • Click Save private key.

Phase 2: Find OCI VM Details
  • Compute -> Instances -> server1 -> instace access -> public ip address


Phase 3: Configure and Connect via PuTTY

  1. Hostname: opc@public_ip 
  2. Attach the Private Key:
    • Connection -> SSH -> Auth -> Credentials -> privake key file for authentication (ppk file) -> save/open the connection 
    • sudo su -  #to login as root

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