Hi Jonathan,

Jonathan Wakely wrote on 20170327:
>>> As for problems getting access, admin of the farm is done by
>>> volunteers when they have time.
>>
>> That is good news. Where do I send my bribe to ? ;-)
>>
>> (stellarium and phd2 buildbot masters are down and I can not ssh in anymore,
>> must be the obsoleted dsa issue)
> 
> What issue is that?

Buildfarm seems to not accept dsa keys at all.

> If your OS doesn't want to use DSA keys by default you can override that:
> ssh -o PubkeyAcceptedKeyTypes=ssh-dss -i ~/.ssh/id_dsa u...@gccn.fsffrance.org

I tried with old OpenSSH_6.6.1p1 and newer OpenSSH_7.2p2 , the 6.6 one does not
recognize -o PubkeyAcceptedKeyTypes ;-) Its output is :

debug1: Offering DSA public key: /home/hans/.ssh/id_dsa
debug1: Authentications that can continue: publickey,password
debug1: Offering ED25519 public key: /home/hans/.ssh/id_ed25519
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: password
stellar...@gcc10.fsffrance.org's password:

And newer 7.2 ssh output is :
ssh -v -o PubkeyAcceptedKeyTypes=ssh-dss -i ~/.ssh/id_dsa 
stellar...@gcc10.fsffrance.org
...
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: publickey
debug1: Offering DSA public key: /home/hans/.ssh/id_dsa
debug1: Authentications that can continue: publickey,password
debug1: Offering DSA public key: /home/hans/.ssh/id_dsa
debug1: Authentications that can continue: publickey,password
debug1: Next authentication method: password
stellar...@gcc10.fsffrance.org's password:

So to me it seems the dsa key is offered but refused.

I get the same when I move my ~/.ssh/config aside, to be sure it's not
something in there that breaks things.

Thanks for offering suggestions though.

I made a ticket to upgrade my ancient dsa key to a fancy new ed25519 key, but
no response there.  https://gna.org/bugs/index.php?25552

More ideas for me to try ?

-- Hans

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