gs-sftp — Secure File Transfer Protocol via Global Socket.

       Efforts have been made to have gs-sftp "do the right thing" in all its various modes. If you believe that
       it is doing the wrong thing under whatever circumstances, please notify me (skyper@thc.org) and  tell  me
       how you think it should behave.

Debian                                          October 12, 2020                                      GS-SFTP(1)

       The  gs-sftp  utility  is  a wrapper script for gs-netcat. It allows two users to establish a secure SFTP
       connetion via the Global Socket Relay Network (GSRN). This is useful in a scenario where both  users  are
       behind NAT/Firewall and unable to connect to each other directly.

       See gs-netcat(1) for a list of supported environment variables.

Example1 - SFTP Server listening for clients using password 'MySecret':
             $gs-sftp-sMySecret-l

       Connect sftp-client using the same password:
             $gs-sftp-sMySecret

       gs-sftp — Secure File Transfer Protocol via Global Socket.

-ssecret
               A password chosen by the user. Both users need to use the same password to connect.

       -kFILE
               A file containing the password.

       -l      Server mode. The default mode is client.

       -R      Places  server  (-l)  into a read-only mode. Attempts to open files for writing, as well as other
               operations that change the state of the filesystem, will be denied.

       -T      Use TOR. The gs-sftp tool will connect via TOR to the GSRN. This requires TOR to be installed and
               running. The IP and PORT of the TOR server can be set using environment variables.

       See gs-netcat(1) for more options.

gsocket(1), gs-netcat(1), sftp(1)

gs-sftp [-lTR] [-ssecret] [-kkeyfile]