1. Convert the .pem file to .ppk format using PuTTYgen: Open PuTTYgen. Click Load and select the .pem file. Click Save private key and save it as a .ppk file. See Figure 1.

2. Log in using PuTTY: Open PuTTY. In Connection > SSH > Auth, select the .ppk file. See Figure 2.

3. In Session, enter the server IP address and click Open. Login successful. See Figure 3.

