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From: Tim Johann <t1m@phrogstar.de>
To: 70034@debbugs.gnu.org
Subject: bug#70034: Hostkey error when pulling or building from private git repository
Date: Wed, 10 Apr 2024 12:14:21 +0200	[thread overview]
Message-ID: <87h6g97br1.fsf@phrogstar.de> (raw)
In-Reply-To: <1156672208.1243481.1711555774538.JavaMail.zimbra@universite-paris-saclay.fr>


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Hi there,

I have experienced the same problem, and have a little piece of the puzzle.  As I looked at the server hosting my own private channel I saw the line

Unable to negotiate with XXX.XXX.XXX.XXX port 45072: no matching host key type found. Their offer: ssh-rsa [preauth]

which means that the guix pull command only uses a Hostkey using an algorithm that is not in the default configuration of the sshd HostKeyAlgorithms (as it is considered too weak for keys of a size <2048 bits?).

The workaround I am using is a line

HostKeyAlgorithms +ssh-rsa

in my server's sshd_config (and using a key of a size of 4096 bits).

Nevertheless, I would like to see guix pull using a host key with a different algorithm - or a larger variety of host keys.

Hoping that helps,

Cheers

Tim

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  reply	other threads:[~2024-04-10 19:44 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-27 16:09 bug#70034: Hostkey error when pulling or building from private git repository Atte Torri via Bug reports for GNU Guix
2024-04-10 10:14 ` Tim Johann [this message]
2024-04-11 17:34 ` Frederickson, Jonathan via Bug reports for GNU Guix
2024-04-12 14:50 ` Frederickson, Jonathan via Bug reports for GNU Guix

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