Local means the tunnel is created with -L flag, not -R. Forward port is from which port you will be accessing this ip:port server you are trying to create a tunnel from on your local. You will be accessing it on your local from localhost:1338. Destination server is the ip:port combination you want to forward to your local on remote side. ssh server is the ip:port of the remote machine you are ssh-connected (yours contains a domain name but anyhow, you get the basics). Port is by default 22, if you didn't explicitely change it, which you did if you conscienciously wrote 7822 at the end as port.