Experimental Physics and
Industrial Control System

On 1/11/22 10:32 AM, Mark Rivers via Core-talk wrote:
> Folks,
> 
>  
> 
> I am trying to push to the Github asyn repository from a Linux system that has worked for many years.

Maybe an OS upgrade is in order?  Which openssh version is currently installed?


> It worked as recently as January 6.  But now I am getting this error:

I am able to push successfully.

> $ grep Debian /etc/os-release 
> PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"> $ ssh -V
> OpenSSH_8.4p1 Debian-5, OpenSSL 1.1.1k  25 Mar 2021




> corvette:~/devel/asyn>git push

fyi.

> GIT_SSH_COMMAND="ssh -vvv" git push

will print the gory details of the SSH connection process.



> Unable to negotiate with 140.82.113.4 port 22: no matching MAC found. Their offer: hmac-sha2-512-etm at openssh.com,hmac-sha2-256-etm at openssh.com,hmac-sha2-512,hmac-sha2-256
> 
> fatal: Could not read from remote repository.
> 
>  
> 
> Please make sure you have the correct access rights
> 
> and the repository exists.
> 
>  
> 
> When I run ssh –Q mac it seems like I have all of their support MAC types:
> 
>  
> 
> corvette:~/devel/asyn>ssh -Q mac
> 
> hmac-sha1
> 
> hmac-sha1-96
> 
> hmac-sha2-256
> 
> hmac-sha2-512
> 
> hmac-md5
> 
> hmac-md5-96
> 
> hmac-ripemd160
> 
> hmac-ripemd160 at openssh.com
> 
> umac-64 at openssh.com
> 
> umac-128 at openssh.com
> 
> hmac-sha1-etm at openssh.com
> 
> hmac-sha1-96-etm at openssh.com
> 
> hmac-sha2-256-etm at openssh.com
> 
> hmac-sha2-512-etm at openssh.com
> 
> hmac-md5-etm at openssh.com
> 
> hmac-md5-96-etm at openssh.com
> 
> hmac-ripemd160-etm at openssh.com
> 
> umac-64-etm at openssh.com
> 
> umac-128-etm at openssh.com <mailto:umac-128-etm at openssh.com>
> 
>  
> 
> My ssh keys have not changed.  I removed github.com from known_hosts just in case that was the problem.
> 
>  
> 
> corvette:~/.ssh>ls -l
> 
> total 28
> 
> -rw------- 1 epics domain users  3243 Nov 18  2019 id_rsa
> 
> -rw-r--r-- 1 epics domain users   750 Nov 18  2019 id_rsa.pub
> 
> -rw-r--r-- 1 epics domain users 17340 Jan 11 12:30 known_hosts
> 
>  
> 
> Any idea how to fix this?
> 
>  
> 
> Thanks,
> 
> Mark
> 
>  
> 

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RE: Git push problem Mark Rivers via Core-talk

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