Given that you have an sshd
running on your local machine, it's possible and you don't need to know your outgoing IP address. If SSH port forwarding is enabled, you can open a secure tunnel even when you already have an ssh connection opened, and without terminating it.
Assume you have an ssh connection to some server:
local $ ssh [email protected]
Password:
remote $ echo abc > abc.txt # now we have a file here
OK now we need to copy that file back to our local server, and for some reason we don't want to open a new connection. OK, let's get the ssh command line by pressing Enter ~C
(Enter, then tilde, then capital C):
ssh> help
Commands:
-L[bind_address:]port:host:hostport Request local forward
-R[bind_address:]port:host:hostport Request remote forward
-D[bind_address:]port Request dynamic forward
-KR[bind_address:]port Cancel remote forward
That's just like the regular -L/R/D
options. We'll need -R
, so we hit Enter ~C
again and type:
ssh> -R 127.0.0.1:2222:127.0.0.1:22
Forwarding port.
Here we forward remote server's port 2222 to local machine's port 22 (and here is where you need the local SSH server to be started on port 22; if it's listening on some other port, use it instead of 22).
Now just run scp
on a remote server and copy our file to remote server's port 2222 which is mapped to our local machine's port 22 (where our local sshd
is running).
remote $ scp -P2222 abc.txt [email protected]:
[email protected]'s password:
abc.txt 100% 4 0.0KB/s 00:00
We are done!
remote $ exit
logout
Connection to example.com closed.
local $ cat abc.txt
abc
Tricky, but if you really cannot just run scp
from another terminal, could help.
scp
command while yourssh
connection is still opened in another terminal? You can open as many connection as you want to the same remote machine through ssh. – GHugoecho $(pwd)/*something
to have a full path list of the files to copy. Then you suspend the ssh connection with[ctrl]+[z]
, returning to your original prompt, where you type thescp
, then resume the ssh session withfg
to put it back running in the foreground – Olivier Dulac