VSI OpenVMS Forum

I have installed VSI VMS V8.4-2L1 on FreeAXP - Avanti 4.0.0.649 running on Win 10 64, from the Community licensed distribution ISO.

The TCP/IP services installed from this ISO is badged as HP This is a very old version, and SSH seems to be broken. Putty informs me that "the first key exchange algorithm supported by the server is diffie-hellman-group1-sha1, which below the configured threshold" - but it does allow me to connect.
However if I try to connect from my linux machines, they reject it - no matching key exchange method found

I notice from the documentation that your current version for VMS 8.4-2L1 is version 10.6

Is an upgrade possible, and obtainable?

Many thanks


Regards

Chris

There is no TCP/IP 10.x release for Alpha. HP TCP/IP V5.7 ECO 5 is the TCP/IP version available for Alpha at this time.

Regards,

Dave Sweeney

cct wrote: ↑

Thu Aug 20, 2020 7:50 am

This is a very old version, and SSH seems to be broken. Putty informs me that "the first key exchange algorithm supported by the server is diffie-hellman-group1-sha1, which below the configured threshold" - but it does allow me to connect.
However if I try to connect from my linux machines, they reject it - no matching key exchange method found

Hi Chris,

As a workaround, to log in via SSH from Linux, you can use the following command:
You can find more info on the issue here, for example: http://wiki.parsec.com/using_openssh_ke ... ll_servers

Kind regards,

Maxim Megalinskiy
VSI Training Team

My fault - I didn't see any mention of I64/Axp

Maxim, thanks for that - just as well they are internal machines!

Chris

using Putty, I can use SSH but get a message:

The first key-exchange algorithm supported by the server is diffie-hellman-group-1-sha1 which is below the configured warning threshold. Do you want to continue with this connection? (YES/NO)

Yes allows you to login.

So it may depend on your SSH agent.

Ok, this is still HPE's OpenVMS:

$ tcpip sho ver

HP TCP/IP Services for OpenVMS Alpha Version V5.7 - ECO 5
on an AlphaServer DS10 617 MHz running OpenVMS V8.4