#765 - Kex Error in X2Go client - X2Go Bug report logs

X2Go Bug report logs - #765
Kex Error in X2Go client

Date: Sat, 24 Jan 2015 12:55:02 UTC

Severity: normal

Found in version 4.0.3.1

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Date: Tue, 3 Mar 2015 21:10:12 -0500
Message-ID: <CAMKht8h4-6YhW-0H-w_yZNpjzt0bke4iBBiGqMYNodzKJYuftw@mail.gmail.com>
Subject: Re: [X2Go-Dev] Bug#765: Bug#765: Bug#765: Kex Error in X2Go client
From: Michael DePaulo <mikedep333@gmail.com>
To: Mihai Moldovan <ionic@ionic.de>
Cc: 765@bugs.x2go.org, promox <promox@gmx.com>
Content-Type: text/plain; charset=UTF-8

On Tue, Mar 3, 2015 at 9:07 PM, Mihai Moldovan <ionic@ionic.de> wrote: > On 04.03.2015 02:04 AM, Michael DePaulo wrote: >> On Tue, Mar 3, 2015 at 8:31 AM, Mihai Moldovan <ionic@ionic.de> wrote: >>> Control: reassign -1 x2goclient >>> Thanks >>> >>> >>> Hi >>> >>> >>> On 24.01.2015 01:53 PM, promox wrote: >>>> Package: X2GO Client >>>> >>>> Version: 4.0.3.1 >>>> >>>> Hi, >>>> Before my server using ubuntu but now I am switching to centos. But >>>> when I connect to server using x2go. I got error message: kex error: >>>> no match for method server host key algo: server [ssh-rsa,ssh-dss], >>>> client [ecdas-sha2-nistp256]. >>>> >>>> Have anyway to fix that error? >>> This issue came up on the IRC channel a few days back and it looks like >>> your server is missing an RSA key. >>> >>> Can you please run "sudo ssh-keygen -A", then restart the ssh daemon and >>> test again? >>> >>> N.B.: there's nothing x2goclient can do about this situation, unfortunately. >>> >>> >>> >>> Mihai >> Mihai, >> >> He already has an RSA key. And a DSA key. The problem is that X2Go >> Client for Windows is limiting him to an ecdsa-sha2-nistp256 key. It >> won't even accept other key lengths. > > Sorry, I meant an ECDSA key. > > > Taken from man ssh-keygen: > `` -A For each of the key types (rsa1, rsa, dsa, *ecdsa* and > ed25519) for which host keys do not exist, generate the host keys with > the default key file path, an empty passphrase, > default bits for the key type, and default comment. This > is used by /etc/rc to generate new host keys.'' > > The default ecdsa key generated on my machine is ecdsa-sha2-nistp256. > > That's why I explicitly suggested (sudo) ssh-keygen -A. > > > > Mihai > Sorry, i skimmed the manpage too hastily. You are right, that is the preferable command. Thanks, -Mike#2

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X2Go Bug report logs - #765 Kex Error in X2Go client

X2Go Bug report logs - #765
Kex Error in X2Go client