SCP from one external server to another

Question

I am trying to use SCP on my local server to copy a file from one remote server to another remote server (both remote servers use a custom port (xxxx)

I am trying:

scp -r -P xxxx root@xxx.xxx.xxx.111:/home/myimages/images.tar.gz root@xxx.xxx.xxx.222:/home/myimages/images.tar.gz

But I get the following error:

ssh: connect to host xxx.xxx.xxx.222 port 22: Connection timed out

Any suggestions?

Answer 1

did you check that direct authentication works from first remote host to the second one?

scp user@host:/file user@otherhost:/otherfile is shorthand for

ssh user@host scp /file user@otherhost:/otherfile

which leeds me to think:

ssh -p XXX user@host scp -P XXX /file user@otherhost:/otherfile might work.

Answer 2

It seems like scp doesn't realize that the special port should also be used on the second server. You could try to explicitly call ssh to start the remote scp transfer:

ssh -P xxxx user@host scp -P xxxx /file user@otherhost:/otherfile

Answer 3

Define the servers in your .ssh/config file, for example:

Host foobar
User youruser
Port 2222
Hostname the.real.hostname

Host foobar2
User youruser
Port 2222
Hostname the2.real.hostname

You can then simply do:

scp foobar:file foobar2:

and it will use the defined custom ports.