Using Putty to have passwordless login

Step 1: Go to http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html and download puttygen.exe

Step 2: Open PuttyGen.exe,

• Click Generate
• To provide randomness, move the mouse randomly on the blank are

Step 3:

• Copy public-key by copying all the text in the public text-box

Step 4: Open Putty

• Connection > Data.
• Under ‘’ for the auto-login username
• Connection > SSH > Auth (left column) > Browse to the private key
• Save the setting

Step 5: Login to the linux server

• vim ~/.ssh/authorized_keys2
• Paste and save the public Key content saved in Step 3
• chmod 700 ~/.ssh
• chmod 644 ~/.ssh/authorized_keys2

Articles:

• Configure Putty To Support Password-less SSH Login
• Linux - SSH passwordless login with putty (Have video too)