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    +1 for explaining a valid use case (where the remote user on host1 has no permissions on the destination server); for the important security caveat (use port forwarding -D rather than -A to get around network rather than key restrictions); for explaining the advantage; for the command being short; and it actually working. Note that you may need to specify username@host1 if it's different from local username. Also that rsync performs host key verification when connecting to host2, so host1's key should already be in ~/.ssh/known_hosts on host2 or the command will fail. Commented Aug 21, 2017 at 8:21
  • Phenomenal answer, this helped me orchestrate some things in TeamCity that I wasn't able to do before (n.b. for other TeamCity users, you must add the "Build Feature" called "SSH agent" to your build config before using ssh -A, see confluence.jetbrains.com/display/TCD10/SSH+Agent). Commented Mar 7, 2018 at 10:15
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    You forgot to mention that this solution require host1 to have direct network access to host2, which a lot of the times is not the case. Commented Aug 19, 2021 at 1:52
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    This worked best for me. I did need to add my ssh key to the SSH Agent with ssh-add first. Commented Aug 26, 2021 at 16:20
  • @Kevin Cox >"why you didn't want to log into one host and then copy to the other" . This did the trick for me, thanks a lot! :) Commented Apr 15, 2022 at 9:12