scp from remote to remote does not work if not using -3

Asked Jul 08 '21 at 08:20

Active Jul 08 '21 at 08:55

Viewed 20 times

I mean to copy files from one remote server to another.

If using scp -3, command succeeds (I have remote1 and remote2 in my ~/.ssh/config)

$ scp -p -3 remote1:dir1/file1 remote2:dir2/

but when not using -3, it fails

$ scp -p remote1:dir1/file1 remote2:dir2/
ssh: Could not resolve hostname remote2: Temporary failure in name resolution
lost connection

Why is that?

As I understand from man scp and other sources, -3 is not mandatory, but simply

-3      Copies between two remote hosts are transferred through the local host.  Without this option the data is copied directly between the two remote hosts.

I am using msys2, I wouldn't know if that makes any difference.

edited Jul 08 '21 at 08:55

muru

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asked Jul 08 '21 at 08:20

sancho.s ReinstateMonicaCellio

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is `remote2` configured in `remote1` ? – Archemar Jul 08 '21 at 08:23
@Archemar - No... and it appears that [this](https://unix.stackexchange.com/a/163379/137608) is the answer, and this OP is a dupe. Could you confirm? – sancho.s ReinstateMonicaCellio Jul 08 '21 at 08:24
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indeed this OP looks like a dupe to me. – Archemar Jul 08 '21 at 08:27
@sancho.sReinstateMonicaCellio mark it as a duplicate and the poster gets the opportunity to agree, disagree, and we (community) get the opportunity to agree or ignore – roaima Jul 08 '21 at 08:30

scp from remote to remote does not work if not using -3

0 Answers0