Solved sha1 support in the SSH

[Oleg P.]

Hi!
I have got a question:
How can I make support sha1 in the SSH on FreeBSD 11.2-Release?
I need sha1 because my old CISCO switch support only sha1 and
when I am trying to connect to the switch I get a message:

Unable to negotiate with 192.168.XXX.XXX port 22:
no matching key exchange method found. Their offer: diffie-hellman-group1-sha1

By the way if you will compile sshlib with suppport ssh1 you will get an error,
because the packet libssh-0.8.4 does not include ssh1.h. I have found ssh1.h
into the libssh-0.7.6.zip which I downloaded from http://www.libssh.org/.

Thanks for advice.

 

[Michael-O]

Do you really mean SHA1 or SSH1?

 

[D-FENS]

This is an SSH issue, it is not FreeBSD specific.

How to enable diffie-hellman-group1-sha1 key exchange on Debian 8.0?

I am unable to ssh to a server that asks for a diffie-hellman-group1-sha1 key exchange method: ssh 123.123.123.123 Unable to negotiate with 123.123.123.123 port 22: no matching key exchange method...

unix.stackexchange.com

ssh -oKexAlgorithms=+diffie-hellman-group1-sha1 123.123.123.123

 

[Oleg P.]

Thank so much roccobaroccoSC !