From unknown Thu Mar 28 20:24:09 2024 X-Loop: owner@bugs.x2go.org Subject: Bug#765: [X2Go-Dev] Bug#765: Bug#765: Kex Error in X2Go client Reply-To: Michael DePaulo , 765@bugs.x2go.org Resent-From: Michael DePaulo Resent-To: x2go-dev@lists.x2go.org Resent-CC: X2Go Developers X-Loop: owner@bugs.x2go.org Resent-Date: Wed, 04 Mar 2015 01:05:02 +0000 Resent-Message-ID: Resent-Sender: owner@bugs.x2go.org X-X2Go-PR-Message: followup 765 X-X2Go-PR-Package: x2goclient X-X2Go-PR-Keywords: Received: via spool by 765-submit@bugs.x2go.org id=B765.142543104229141 (code B ref 765); Wed, 04 Mar 2015 01:05:02 +0000 Received: (at 765) by bugs.x2go.org; 4 Mar 2015 01:04:02 +0000 X-Spam-Checker-Version: SpamAssassin 3.3.2 (2011-06-06) on ymir.das-netzwerkteam.de X-Spam-Level: X-Spam-Status: No, score=0.8 required=5.0 tests=BAYES_50,FREEMAIL_FROM, T_DKIM_INVALID,URIBL_BLOCKED autolearn=ham version=3.3.2 Received: from mail-wi0-f174.google.com (mail-wi0-f174.google.com [209.85.212.174]) by ymir.das-netzwerkteam.de (Postfix) with ESMTPS id 2DD0F5DCAB for <765@bugs.x2go.org>; Wed, 4 Mar 2015 02:04:01 +0100 (CET) Received: by wivz2 with SMTP id z2so7660759wiv.0 for <765@bugs.x2go.org>; Tue, 03 Mar 2015 17:04:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=ZIfBfqoxGPDt+SsHk6L4VzqQTT2MS5XtYg07fZ8fMS4=; b=WHdfQeo4A9nsNkC8HzRDum9i8dd6fMBzL7WGgvW/gPNOqZSRXRDB88tSnId93oxLhd V2eqxAq24dWl6dk2WUqydwwPnE7l8U/eKbBmf8qpwZgfQUo8/hRm8AXIXfEFRVrJoq1c OfvDQLGM3wOCIWdjSszHNSX1FMAJ0qEPPdOb3MTubzlJ0uDvGcIjwgjTD2eWFne5KKIG cATlo5UiOQU/NCsllVxQxImzcZd3GzS225icm+ykrDWBYwgFRmERfQ9gHDZ7w2B5Jnag O7pM/uiy54SapGcMpTzf8P0nbdHtBs5SMdaBeE3kS3NSfHcTcEZD0ec+M8nD16QQY0eu KaVg== MIME-Version: 1.0 X-Received: by 10.180.103.40 with SMTP id ft8mr52020001wib.68.1425431040803; Tue, 03 Mar 2015 17:04:00 -0800 (PST) Received: by 10.180.80.8 with HTTP; Tue, 3 Mar 2015 17:04:00 -0800 (PST) In-Reply-To: <54F5B7CE.6000308@ionic.de> References: <54C395BF.4030603@gmx.com> <54F5B7CE.6000308@ionic.de> Date: Tue, 3 Mar 2015 20:04:00 -0500 Message-ID: From: Michael DePaulo To: Mihai Moldovan , 765@bugs.x2go.org Cc: promox Content-Type: text/plain; charset=UTF-8 On Tue, Mar 3, 2015 at 8:31 AM, Mihai Moldovan 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. Promox, You should run this command, then restart the ssh daemon: ssh-keygen -f /etc/ssh/ssh_host_ecdsa_key -N '' -t ecdsa -b 256 -Mike#2