From andrey.v.malyshev@gmail.com Fri May 7 12:53:52 2021 Received: (at submit) by bugs.x2go.org; 7 May 2021 10:53:55 +0000 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on ymir.das-netzwerkteam.de X-Spam-Level: X-Spam-Status: No, score=-2.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,SPF_HELO_NONE autolearn=ham autolearn_force=no version=3.4.2 Received: from mail-wm1-x32a.google.com (mail-wm1-x32a.google.com [IPv6:2a00:1450:4864:20::32a]) by ymir.das-netzwerkteam.de (Postfix) with ESMTPS id D69885DAFA for ; Fri, 7 May 2021 12:53:51 +0200 (CEST) Received: by mail-wm1-x32a.google.com with SMTP id 82-20020a1c01550000b0290142562ff7c9so4625098wmb.3 for ; Fri, 07 May 2021 03:53:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:subject:message-id:mime-version:content-disposition; bh=eX9wwgo+6i2lRTpVpaUQbLqD26mbt8MotDaLTRXRx0Y=; b=Ugw4mN2r3tV6R47N3RpM4KUexYf8u2yYfwR7gBiEHpJfnTE8mGY/uAAsuJQ6dDL5FN R0zq/5EmmYcvrY8dwSbZ6vsEBmXpFXo777+g+ueb31Cd3y87XYk2bnZb6C9Cagtzd8/Z /NqFZ5SW8CsqGY8ffmt2CENLwW59QwBprs+7DCBhWwW17Q0StXoUYZZCOu9PyRCgP85u +g+hPG8w33T/cjENVaImuBGJoBwSsGBK4ZL/T0rL3/aoofhfXDTdz54TNY1ZObgZXXQC 6ee1n92oXwtdPCaMJnCIX/Es5A138dvYsw9TmfrDlfBpFxsGsz5JkADI/BFE6UFHhPa+ vj4Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-disposition; bh=eX9wwgo+6i2lRTpVpaUQbLqD26mbt8MotDaLTRXRx0Y=; b=X9kn/xeT/r5dm3exAK+76vEEnCWhB7KNkTKopj5jDEwUUb+Es+bTl5ZMiXyYkbQ8TE DyjhoXB/4mT1CPLyqyQGPe0ZHU1brA/Cq1C5g2vdKxnsLO7ou1Og4J7PDePEMSV//+67 D4BaglfSMJfOhv7tAtVAFXnkwFF5tsavuIvuylB6EzPnei+r3hvzEZmX8dRGlmEtjK/4 igZ2BWVVhcba4gDkHfQEkauEYBOXgDF3T0Bb6fj+KalSkt+56lnxIOsdAuMyHFCLHAA1 spqz18SMeYnSJEiRcDgjDr+Egv6T6/cwnNb7aZzUlvxBCgaGUyOKo1bFa7gkeORuhKmn M9SA== X-Gm-Message-State: AOAM530gqGiCAcRkINPcNX0xfgM3+pT4Jj/FmTF3utnTPE+Y86aSclXQ r7395oRLyxiLvZoBfTntmhyQ+rutigk= X-Google-Smtp-Source: ABdhPJzfGGNL2ah+fZzxOzPlDF1erVPYpeS3/qSpQWDEwjaKInXly6KCQXT3im8h5MgOYiOeVDD/QQ== X-Received: by 2002:a1c:f212:: with SMTP id s18mr2552814wmc.172.1620384831152; Fri, 07 May 2021 03:53:51 -0700 (PDT) Received: from ucm.es (orient.fis.ucm.es. [147.96.27.202]) by smtp.gmail.com with ESMTPSA id n2sm7926511wmb.32.2021.05.07.03.53.50 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 May 2021 03:53:50 -0700 (PDT) Date: Fri, 7 May 2021 12:53:48 +0200 From: Andrey Malyshev To: submit@bugs.x2go.org Subject: x2goclient not connecting [with a provisional fix] Message-ID: <20210507105348.GA629432@ucm.es> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Package: x2goclient Version: 4.1.2.2 x2goclient stoppped connecting to a working x2go server after some update of the client on both Linux and Mac boxes. Provisional fix - The offending line is "Port 22" in the localhost section of the ~/.ssh/config file on the client side. Commenting out the line solves the problem on both Linux and Mac boxes. It seems that some parser (no idea if it is the x2goclient's or the nxproxy's one) is doing some strange thing and gets confused, as the error message has nothing to do to the port line. A permanent fix would be appreciated. Below are the relevant part of the output from x2goclient --debug and the content of the ~/.ssh/config file with an offending Port line in the localhost section: x2goclient --debug: x2go-INFO-1> "Starting X2Go Client 4.1.2.2..." ... x2go-DEBUG-../src/onmainwindow.cpp:6142> "Starting NX proxy, command: nxproxy -S nx/nx,options=/home/andrei/.x2go/S-andrei-50-1620380095_stRTERMINAL_dp24/options:50" ... x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr: "\nNXPROXY - Version 3.5.99.26\n\n...." ... x2go-DEBUG-../src/sshmasterconnection.cpp:1994> Forwarding parameters: from remote ("localhost":33106) to local ("localhost":60552) x2go-DEBUG-../src/sshmasterconnection.cpp:2028> Temporary session port after config file parse: 22 x2go-DEBUG-../src/sshmasterconnection.cpp:2032> Temporary session host after config file parse: 127.0.0.1 x2go-DEBUG-../src/sshmasterconnection.cpp:2059> New channel forwarded. ... x2go-DEBUG-../src/onmainwindow.cpp:6618> Proxy wrote on stderr: "Loop: PANIC! Wrong version or invalid session authentication cookie.\nError: Wrong version or invalid session authentication cookie.\nSession: Terminating session at 'Fri May 7 11:34:57 2021'.\nSession: Session terminated at 'Fri May 7 11:34:57 2021'.\n" x2go-DEBUG-../src/onmainwindow.cpp:6475> Deleting Proxy. ... ===== ~/.ssh/config Host localhost 127.0.0.1 User ***** Hostname 127.0.0.1 Port 22 Compression no ForwardX11 yes =====