PuTTY

Generating a key

• Start puttygen.exe:
  
• Click on `Generate':
  
• Save both the public and private keys:
  

Putty SSH-Agent

• Start pageant.exe:
  
• Click on `Add Key' and select the private key:
  
• Enter the passphrase for the key:
  
• Valid key loaded:

Using with OpenSSH

Exporting Key

$ ssh-keygen -i -f id_rsa.pub
ssh-rsa AAAAB3NzaC1yc2EAAAABJQAAAIB5GZJatndy
DbUavytT1IbiWjwKv48mk+gLoqrLzTTON4tQpZMi+NvG
xtDKQ2+C3AodXsvb5DcB1s3X/mfVcuh2VFFHGY6m2DnT
eF7qN1vT7a8jlxM/EUG31DnShh8NECme5Nw+W3Y70hiC
sA+SbRmycq6v0aoTRzbmvE2YmkKafQ==

Using Key

• Put above in ~/.ssh/authorized_keys

Using with SSH.com

• Put id_rsa.pub in ~/.ssh
• Add the following to ~/.ssh/authorization

  Key id_rsa.pub
  

Port Forwarding

• Select Connection | SSH | Tunnels
• Example forwards:
  
  • Host remote port 80 to local port 8080
  • Host remote2 port 3389 to local port 3389
• Checking `Local ports accept connections from other hosts' allows other hosts to connect to forwarded hosts