https://www.chiark.greenend.org.uk/~sgtatham/putty/latest.html
https://the.earth.li/~sgtatham/putty/latest/w64/putty.exe
https://the.earth.li/~sgtatham/putty/latest/w64/putty.zip
https://the.earth.li/~sgtatham/putty/latest/w64/plink.exe
https://the.earth.li/~sgtatham/putty/latest/w64/pscp.exe
https://the.earth.li/~sgtatham/putty/latest/w64/psftp.exe
https://apps.microsoft.com/store/detail/putty/XPFNZKSKLBP7RJ

Basics

putty.exe [-ssh | -ssh-connection | -telnet | -rlogin | -supdup | -raw] [user@]host https://the.earth.li/~sgtatham/putty/latest/htmldoc/Chapter3.html#using-cmdline

Port Fowrarding

To forward a local port (say 5110) to a remote destination (say popserver.example.com port 110), you can write something like one of these:

putty -ssh user@host -L 5110:popserver.example.com:110
putty -ssh user@host -L 8080:webserver.example.com:80
putty -ssh user@host -L 8443:192.168.1.1:443
putty -L 5110:popserver.example.com:110 -load mysession
plink mysession -L 5110:popserver.example.com:110

To forward a remote port to a local destination, just use the -R option instead of -L:

putty -ssh user@host -R 5023:mytelnetserver.myhouse.org:23
putty -R 5023:mytelnetserver.myhouse.org:23 -load mysession
plink mysession -R 5023:mytelnetserver.myhouse.org:23

To specify an IP address for the listening end of the tunnel, prepend it to the argument:

plink -L 127.0.0.5:23:localhost:23 myhost

To set up SOCKS-based dynamic port forwarding on a local port, use the -D option. For this one you only have to pass the port number:

putty -D 4096 -load mysession

More Help

https://www.chiark.greenend.org.uk/~sgtatham/putty/
https://the.earth.li/~sgtatham/putty/latest/htmldoc/
https://the.earth.li/~sgtatham/putty/latest/htmldoc/Chapter7.html#plink