Can not SCP from Unix to VMS

[Chris Warne_1]

I have the folling issue using SCP from HP-UX and Redhat LINUX to OpenVMS Alpha 7.3-2 with TCP/IP Services 5.4.

When I try to SCP from UNIX to VMS, I get the following message at the Unix end :

"scp1 compatibility mode is not supported"

The above message is from a system with TCP/IP ECO5. With ECO4, the message is marginally more helpful:

"tcpip$ssh_scp2.exe: warning: Executing scp1 compatibility."

In both cases, the copy fails, and the log file at the VMS end simply shows the connection was established, then immediately disconnected without any other meaningful error messages.

The Unix boxes are all running SSH 2, and SSH works fine - it's just SCP which doesn't.
SCP from VMS to VMS also works OK.

Any ideas greatefully received!

Chris

[Richard Whalen]

The SCP on many Unix boxes is basically RCP over SSH. The SSH that comes with TCP/IP Services does not provide this functionality.

On VMS SCP uses the SFTP subsystem under SSH; SCP is effectively a special purpose SFTP client.

You have two options:
1) Use SFTP from the Unix boxes.
2) Buy SSH for OpenVMS from Process Software, which includes the RCP over SSH support for OpenSSH SCP