1. Open the PuTTy application and navigate to the category
  2. Select Connection
  3. In the field Sending null packets to keep session active change the default value from 0 to 1800 (30 minutes)
  4. Check the Enable TCP keepalives (SO_KEEPALIVE option) check box.
    Note: This option may not be available in older versions of the PuTTY client.
  5. Select Session from the left hand menu.
  6. In the Host Name (or IP Address) field enter the destination hostname or IP address
  7. select Save to save the connection
  8. open to open the terminal