PuTTY doesn’t use in-line arguments for connection settings so you need to go into the program menus to set up a SOCKS 5 proxy to use with other programs. This is how to set dynamic port forwarding for SOCKS.
First, what we are doing is the equivalent of the following in a regular Bash shell:
ssh -D 1080 firstname.lastname@example.org
Connection > SSH > Tunnels, enter
1080 (or your port of choice) as the
Source port, switch the selector below to
Dynamic, then hit the
Be sure to save your session settings on the main PuTTY page if you want them to be retained.
If you got to this page from the SSH SOCKS proxy server tutorial, return to that page to continue with setup.