I am assuming you have your Raspberry Pi booted up and connected to your router and it has network and internet access. You will also need to be logged in.
Find out your Raspberry Pi’s IP address
On your RPi, type the following
Make a note of your RPi’s IP address to use in a later step. Mine is 192.168.0.21.
Start SSH on the Raspberry Pi
On the Debian Squeeze Raspberry Pi image which we prepared for in a previous blog
post, SSH is not running by default so we have to start it. Type the following on your RPi
ssh-keygen (just hit Enter a few times when you are prompted for more stuff)
service ssh start
This will start SSH on your RPi. At this point, you are ready to SSH into your RPi from your Windows PC.
Once you have installed PuTTY, run it. On the first page enter the IP address of your RPi in the Host Name box. This was found out in the first step above.
Hit the Open button. A terminal Window should appear as below asking for you to login.
Just enter your username and password and thats it. You now have a terminal window into your RPi.