Remote No Xauth Program Cannot Forward X11

local/unix:10 MIT-MAGIC-COOKIE-1. X11 - How to display remote clients (such as firefox, installation screen) with the X Server CygwinX ? > SSH (Secure Shell) - Remote Access > X Windows System (commonly X or X11). how to install and configure X11 on linux 1) Install X11 rpm yum install xorg-x11-apps 2) Make changes in /etc/ssh/sshd_conf. Remote clients will be refused access after this time. debug1: Remote: No xauth program; cannot forward with spoofing. X11 forwarding is crucial when you want to launch an application/utility on a Virtual Machine with no Gui, using the GUI interface of your Host machine. X11 forwarding should be enabled with caution. X11 forwarding request failed on channel 0. debug1: Requesting X11 forwarding with authentication spoofing. ssh -Xvvv username@hostname. On 1/18/07, Graham Smith <[hidden email]> wrote: > xauth info on both systems are the same. Xhost allows access based on hostnames. This tool has to be installed on server. when ssh-ing from the ArchLinux machine to the remote X-server. Re: any one get ssh x11 forwarding working Sun Jul 29, 2012 11:08 am With X forwarding I can have a single application on my remote box, with VNC I have the complete GUI on my remote box. There is also reports you need to set X11UseLocalhost no also on the server side. How to debug these situations: On the target host, run another sshd daemon to debug on another port: /usr/sbin/sshd -d -p 222 On the source host: ssh -v -Y phil@192. Linux supports X Forwarding with no extra software, on OS X you need e. If you have a code, then simply follow the same procedure as programming it for your television. If you cannot use rlogin at all, must use telnet, for example, to get to the remote host, then you cannot use xauth. X11 Forwarding will help you to run some GUI applications on a remote Sever. Warning: No xauth data; using fake authentication data for X11 forwarding. To authorise the remote machine to connect you must add the Magic-Cookie into your remote xauthority file. The -X option turns on X11 forwarding in SSH, and -x turns it off. Looks like it does not like. 0 and attempting to run any app (gnome-terminal, evolution. If you are using SSH client to connect to Linux server from your Windows laptop, sometimes it may be necessary to launch UI application on the remote Linux server, but to display the UI on the windows laptop. debug2: channel_input_status_confirm: type 100 id 0 X11 forwarding request failed on channel 0. I ask this specifically because my configurations are how it's specified in the arch ssh setup guide and trying sudo gives me the same result (thus eliminating possibility of permissions error). "X11UseLocalhost no" appears to do this: it sets the display to "gummi:10" (thats the hostname) and generates xauth entries. Every day I happily use X11 forwarding to work with Beyond Compare by running it in a remote Linux box, and it perfectly works although has a complex UI. 5 system was hardcoded to look for xauth in /usr/X11R6/bin/xauth if not specifically mentioned in the config file. You can write them into your own program too, which is handy if you’re using minimal or unusual hardware that cannot run regular applications… cellphone masts, satellites, that kind of thing. To find package on deb-based do '$ apt-cache search xauth'. When a SSH connection with X11 forwarding is established, the sshd must be able to use the "xauth" command, which writes to the ~/. Similar to other X application, it could be launched remotely via X11 Forwarding. ssh -Xvvv username@hostname. sshで接続したときに、debug option -vをつけてあげると debug1: No xauth program. X11 forwarding denied, xauth not found (path used `%s'). debug1: Remote: No xauth program; cannot forward with spoofing. Displaying remote clients. 0 [root@CHNNOC001 Desktop]# xhost local:bharath non-network local connections being added to access control list For remote systems ssh root@10. The argument must be “yes” or “no”. debug1: Requesting X11 forwarding with authentication spoofing. Both are commonly present on most modern. In this post, I will write about how to use Git for Windows to connect to a remote CentOS server and set up X11 forwarding to use the GUI applications on that server. com firefox. The remote machine runs a SSH server and a X client application (e. I didn't think I could exhaust all of Google's search results it threw at me, but I did. sudo dnf install xorg-x11-server-Xorg xorg-x11-xauth. So, X authorisation with ssh is fully automatic. Wheeler] If the remote machine is a Windows machine using Cygwin OpenSSH server, make sure the Cygwin xauth package is installed on the remote machine. All versions of OpenSSH prior to 7. debug1: Requesting X11 forwarding with authentication spoofing. This is done by going into the Setup->SSH Forwarding menu and make sure that the Display remote X applications in local X server is checked. Specifies whether remote hosts are allowed to connect to ports forwarded for the client. Most common problem is lack of xauth (this tool is described in "Forwarding X11 manually" section). This is done by going into the Setup->SSH Forwarding menu and make sure that the Display remote X applications in local X server is checked. When ssh'ing to a remote machine in Cygwin, I sometimes get: Warning: No xauth data; using fake authentication data for X11 forwarding. I receive, "Warning: No xauth data. This can be done using xauth to get the key of the remote system. I have xauth in /bin which xauth returns /usr/bin/xauth. X11 is capable of drawing primitives. 14 -p 222 In my situation I could see: debug1: Remote: No xauth program; cannot forward with spoofing. I'm fairly new to Linux but have already deployed bare metal installation and haven't encountered this issue. Athena, Tcl/Tk) worked perfectly over the network, even modem lines. i need to write a program running remote desk. Introducing the Voice Remote. This Tutorials should work on all Centos/RHEL 7 and Fedora 28/29. 20 root@192. Depending on the format of the DISPLAY variable, XOpenDisplay() will try different methods of creating the socket connections. Below is the content of my sshd_config file. the server and client share a secret “cookie”(xauth list to see yours)…. Note that you do not need to set any environment variables on the server. This program can be used to log into a remote machine. ssh -X root@192. The -X option turns on X11 forwarding in SSH, and -x turns it off. com firefox To improve local connection speed, you could request compression by adding "-C" when executing SSH: ssh -XYC user@remote. debug: Remote: Client requested X11 forwarding, but the server has no xauth program. Prerequisites. This procedes to tell me in the last few lines. The xauth program is used to edit and display the authorization information used in connecting to the X server. X11 forwarding is a mechanism that allows graphical interfaces of X11 programs running on a remote system to be displayed on a local client machine. For details, see Server Configuration Keywords. An SSH client program is typically used for establishing connections to an sshd daemon accepting remote connections. This lets you run any X11 app on. Make sure X Forwarding is enabled on the server: yum -y install xorg-x11-apps xorg-x11-xauth xorg-x11-utils sed -i 's/X11Forwarding no/X11Forwarding yes/' /etc/ssh/sshd_config service sshd restart. If I run xhost on both the Mga6 ( which accepts x11 forwarding from my laptop) and the Mga7 machine ( which does not accept x11 forwarding from my laptop but does from the Mga6 machine) both have the same output of xhost access control enabled, only authorized clients can connect INET:localhost SI:localuser:unruh So, no difference there. X11 forwarding can be very useful. Starting a non-X11 srun job, then doing "ssh -X cluster-node" to the node allows X forwarding to work fine from the SSH session. debug1: Sending environment. Open a 'Putty' window on the PC, enable "X11 Forwarding" and login to your UNIX account. Related 5Remotely control an xorg session3How to troubleshoot failed X11 forwarding with ssh?3Running bash script on a remote Windows Machine3Xmove is unable to connect to X11 server via SSH X forwarding0How How can a Cleric be proficient in warhammers? 40 Vertices And A Connected Graph, Minimum Number Of Edges? Xauth List Empty. Good times with X11 forwarding and SSH 22 posts You just fire up the lbxproxy and set your DISPLAY on the remote machine to the lbxproxy's new display. The X1 Voice Remote Overview. It works OK to a FC6 system and an older UNIXware system. com firefox. Posted: Sun Aug 29, 2010 10:52 pm Post subject: ssh -X untrusted X11 forwarding setup failed, no auth data Hi @all ssh&xauth issues aren't quite new I know, but even after searching some threads I still didn't found what I'm looking for. Choose, Install from Internet, this will still save the package files to your download directory so that you can install Cygwin on any number of machines. This program is usually used to extract authorization records from one machine and merge them in on another (as is the case when using remote logins or granting access to other users). 29's password: X11 forwarding request failed on channel 0 Remote: No xauth program; cannot forward with spoofing. It is not as useful as Webmin, but there may be situations in which you need to use it and it is really easy to setup. /* $OpenBSD: ssh. To install xauth, do the following on a remote server. Sometimes using ssh –Y instead of ssh –X will sometimes fix this problem. 0 Mar 31, 2011. rtp-evergreen: Requesting X11 forwarding with authentication spoofing. The following procedure allows a sudo user to use the ssh based X11 tunnel: 1. Linux remote desktop via XMing In this post, I talked about setting up X11 forwarding using Xming and SSH. This Tutorials should work on all Centos/RHEL 7 and Fedora 28/29. 05/15/2019 106 16361. These methods are described below in order from most secure to least secure. " (and it turned out to be that one -v would have been enough). # yum install openssh-server xorg-x11-xauth xorg-x11-apps You start the Xming X server on your Windows PC, then open PuTTy to establish a SSH session with X11 forwarding. but xauth is indeed installed on the server, then it is probably because sshd looks for xauth executable in wrong location ( /usr/X11R6/bin/xauth usually). No not really similar. The XQuartz installer should automatically setup xauth for by editing ssh_config and sshd_config during its post-install script. All X11 applications which you start on remotehost will connect to the X11 port remotehost:11. Another attempt with the following command shows Firefox running remote on Ubuntu and displayed locally: ssh -XY user@remote. Authorise the remote machine by adding an xauth entry. 50 COMMITTED AIXwindows Configuration is installed with xauth at /usr/bin/X11/xauth. The best one I have been using, so far, is VcXsrv All them are descendants from the same base, but this one is crafted to work very well on Windows, in particular Windows 10. I have enable X11 forwarding in my Ubuntu machine: In /etc/ssh/sshd_config: X11Forwarding yes X11DisplayOffset 10 X11UseLocalHost no xauth is installed: $ which xauth /usr/bin/xauth. when ssh-ing from the ArchLinux machine to the remote X-server. > The output of xhost is the same. ssh -X root@192. Local port forwarding is the most common type. X11 forwarding serves two purposes: it is a convenience to the user because there is no need to set the DISPLAY variable, and it provides encrypted X11 connections. The old versions of the ssh client silently failed when the server had no xauth, this new version is just a little more verbose. X11 forwarding. love this site, love these articles but xhost? pfft! hari, when you’re X11 forwarding, you aren’t using xhost for X authentication. This will force SSH server to use IPv4 only, but not IPv6. For information on X11 forwarding, see section 3. Below is the content of my sshd_config file. WWNs, multipathing etc. bumping this issue for fedora 10. This means you can use the x11 GUI server to forward remote windows to your local machine. X11 forwarding request failed on channel 0と表示されてsshでX11 forwardingできない時の対処法 Remote: No xauth program; cannot forward with spoofing. X11 display forwarding for root The problem: [wilson@local-host]$ ssh -Y -A -t -C -o CompressionLevel=9 wilson@remote-host [wilson@remote-host]$ sudo su [root@remote-host]$ xclock X11 connection rejected because of wrong authentication. To install xauth, do the following on a remote server. Remote: No xauth program; cannot forward with spoofing. Basically, xauth is a utility to manipulate. X11 forwarding doesn't work Though it says application started when I run this bash script doesn't show up any GUI. Click the Enable X11 Forwarding checkbox. com firefox To improve local connection speed, you could request compression by adding "-C" when executing SSH: ssh -XYC user@remote. When this option is set to no, remote X11 clients are considered untrusted and prevented from stealing or tampering with data belonging to trusted X11 clients. rtp-evergreen: Failed to get local xauth data. local$ ssh -vXY user@host. After the installation you have to start it. X11 forwarding denied, xauth not found (path used `%s'). Create a profile for the server you will connect to. The default is “yes”. Now we have set this up you can connect to a remote linux server as done in the example below. 1804 with the latest updates. In addition to gedit, you'll also need to install an xauth package. 168 -X -vvv debug3: Wrote 512 bytes for a total of 2005 debug1: Remote: No xauth program; cannot forward with spoofing. -L specifies that we’ll be forwarding a local port to a remote address and port. On rpm-based, do '$ yum provides xauth'. It worked with other programs, so the problem should be in the obs. ssh/rc (on the server!). I receive, "Warning: No xauth data. The remote machine runs a SSH server and a X client application (e. Open a 'Putty' window on the PC, enable "X11 Forwarding" and login to your UNIX account. Mac Os X11 Forwarding Mac X11 Forwarding For forwarding remote X sessions over ssh you can use either Terminal. sshで接続したときに、debug option -vをつけてあげると debug1: No xauth program. Warning: Remote host denied X11 forwarding. That can be achieved by adding the scripts SSH public key to the remote user's authorized_keys file. 0 broken (explicit kill or server shutdown). Displaying remote clients. So, what's the problem? The server has no xauth program. To verify that you have X11 working, type an XWindows command such as "xterm" at the UNIX command line in the Putty window. 3 machine (sshd looked in /usr/bin/xauth by default). I have xauth in /bin which xauth returns /usr/bin/xauth. Allow by Xauth Cookie. The Vagrant instance running will use X11 to talk to the display system of the host machine. debug1: Sending env LANG = en_US. Another attempt with the following command shows Firefox running remote on Ubuntu and displayed locally: ssh -XY user@remote. 1 VGL Transport with X11 Forwarding. Since the network may be accessible to other users, a method for forbidding access to programs run by users different from the one who is logged in is necessary. I edited etc/sshd_config. since both of my systems are not supporting x forwarding,I did X11Forwarding yes in /etc/ssh/sshd_config in both the systems. com to the remote machine, I get the following error: debug1: Remote: No xauth program; cannot forward with spoofing How do I fix this problem and use X over ssh?. To authorise the remote machine to connect you must add the Magic-Cookie into your remote xauthority file. still, no joy. debug2: channel_input_status_confirm: type 100 id 0 X11 forwarding request failed on channel 0. Posted on is configured to forward X11 connections or other problems with your link may cause the remote program to be closed!. X11 forwarding serves two purposes: it is a convenience to the user because there is no need to set the DISPLAY variable, and it provides encrypted X11 connections. X11 forwarding is a simple and battle-tested way to access our Linux workstations (and their remote data/programs) from a Windows machine. 1 su - $ thunderbird X11 connection rejected because of wrong authentication. For example, if you need to test a website on the remote Linux PC you’ll be able to start Firefox remotely, and forward the x11 Firefox window to your Linux PC, locally. XXX IdentityFile ~/. これだけだとなんもわかんないので、デバッグ情報をみれるようにする. The basic and home editions of Windows cannot host a remote session, meaning you cannot connect to them using RDC. X11 forwarding from Amazon EC2 AMI. exe by double. First I'll quickly discuss a few non-SSH connection options that you might want to consider using at times. If there are any X11 programs there, it's very likely that xauth will be there. Check that /etc/ssh/sshd_config has the following option X11Forwarding yes. An SSH server, by default, listens on the standard TCP port 22. 6 ssh a remote redhat server. debug1: Requesting X11 forwarding with authentication spoofing. Make sure you have X11 Forwarding enabled for this SSH session. Introducing the Voice Remote. How to run on Mountain Lion X11 forwarding via SSH? Example: ssh -X some@example. as part of an otherwise working login. X11 port forwarding does not work DISPLAY= variable is not set "ssh -v -X " returns: No xauth program; cannot forward with spoofing X11 port forwarding not set up with ssh connection to remote RHEL machine without xauth installed - Red Hat Customer Portal. This starts a X clock program that can be used for testing the forwarding connection. xauth no longer depends on x11-common, so we're no longer guaranteed to have the /usr/bin/X11 symlink available. com xterm my /etc/sshd_config has X11Forwarding yes #X11DisplayOffset 10 X11UseLocalhost yes # XAuthLocation ad. X11 connections, arbitrary TCP ports and Unix Ns -domain sockets can also be forwarded over the secure channel. It can also disable host checking entirely. set perfect-forward-secrecy keys group2 set proposals ng-ipsec-proposal-1 [edit security ipsec vpn ng-remote-vpn-1] set ike gateway ng-remote-vpn-1 set ike ipsec-policy ng-ipsec-policy-1. To install xauth, do the following on a remote server. Someone beat me to it – on the remote machine, you need to install the xauth program. X11 connections, arbitrary TCP ports and UNIX-domain sockets can also be forwarded over the secure channel. The xauth program is used to edit and display the authorization information used in connecting to the X server. X11-unix/X0: No such file or directory connect /tmp/. If you are using the Mac OS X Terminal, you will need to set your DISPLAY variable. Only the ssh banner, or motd, or whatever is configured to be shown when logging on to the remote system is displayed. Enjoy the freedom of using your software wherever you want, the way you want it, in a world where interoperability can finally liberate your computing experience. Depending on the format of the DISPLAY variable, XOpenDisplay() will try different methods of creating the socket connections. X Window System Server for Windows. ssh/rc (on the server!). i need to write a program running remote desk. Turned out I needed to install xauth on my CentOS VM, and I discovered that by doing ssh -v, where I got the message “Remote: No xauth program; cannot forward with spoofing. ssh -Xvvv username@hostname. xauth/export file, and the invoking user is not root, the user will forward cookies to any other user. 0 [root@CHNNOC001 Desktop]# xhost local:bharath non-network local connections being added to access control list For remote systems ssh root@10. I also had ever tried all methods they mentioned, but my problem is still there. com xterm my /etc/sshd_config has X11Forwarding yes #X11DisplayOffset 10 X11UseLocalhost yes # XAuthLocation ad. Warning: No xauth data; using fake authentication data for X11 forwarding. (10 replies) On rare occasions I want to run a remote X command (like 'meld' to interactively merge changes in files) and normally 'ssh -Y remote_host' from a terminal in an NX/freenx window that is acting as my desktop to start and any X program subsequently started would open in a new window via X-forwarding - at least when the target is a 5. Looks like no one's replied in a while. You also need to open the X11 port on the remote server (usually TCP port 6000). X11 forwarding can be very useful. debug1: Sending environment. Warning: No xauth data; using fake authentication data for X11 forwarding. Most ssh setups, including the default compile of the proprietary version, not only automatically port forward X, they take care of access control and set your display variable. If you enable X11 forwarding and you ssh to a remote host, ssh will set the DISPLAY environment variable to something like DISPLAY=remotehost:11. debug1: Remote: No xauth program; cannot forward with spoofing. GatewayPorts. That can be achieved by adding the scripts SSH public key to the remote user's authorized_keys file. This can also be specified on a per-host basis in a configuration file. 4 Connecting to the remote node. SSH, which is an acronym for Secure SHell, was designed and created to provide the best security when accessing another computer remotely. On the remote (ssh server, X client) sshd must sit behind some port, tell Xlib to send X11 requests to it and then forward them back to you the X server (where the ssh client is). No not really similar. Click the Enable X11 Forwarding checkbox. Remote X11 GUI for Linux/Unix. Was I supposed to edit any other variables in the sshd_config file (Other than to allow forwarding) ? none, view_forum, view_category urn:lsid:ibm. I can share my container or the necessary system commands I used to get the GUI working well. and I get the following warning after connecting: Warning: No xauth data; using. How to debug these situations: On the target host, run another sshd daemon to debug on another port: /usr/sbin/sshd -d -p 222 On the source host: ssh -v -Y phil@192. Also if I try for example "display image. The version tested is cat6000-supk9. To find package on deb-based do '$ apt-cache search xauth'. To install xauth, do the following on a remote server. So, what's the problem? The server has no xauth program. Provides detailed control over port forwarding. Any ideas what I might have done wrong? I finally got around to poking at this again. " What is this mean. local/unix:10 MIT-MAGIC-COOKIE-1. 1) The remote machine needs to have xauth installed. debug1: Remote: No xauth program; cannot forward with spoofing. 34, installed on a HpG7N54L miro-server. This procedes to tell me in the last few lines. Users with the ability to bypass file permissions on the remote host (for the user's X11 authorization database) can access the local X11 dis- play through the forwarded connection. The default is “yes”. Both head and compute nodes are CentOS 7. How to run on Mountain Lion X11 forwarding via SSH? Example: ssh -X some@example. WWNs, multipathing etc. I know the SSHd forwarding is turned on but this made no sense. For now, let’s walk through setting up an RDP connection. X11 forwarding request failed on channel 0と表示されてsshでX11 forwardingできない時の対処法 Remote: No xauth program; cannot forward with spoofing. I have done this with Linux for years. Typically, a process on a remote kerberized host isn't automatically given access to your local X display (as it is when you use ssh). If there are any X11 programs there, it's very likely that xauth will be there. XQuartz server. Below is the content of my sshd_config file. An SSH client program is typically used for establishing connections to an sshd daemon accepting remote connections. Also, instruct the installation program to place a shortcut for XLaunch on the desktop. In addition to gedit, you'll also need to install an xauth package. Unless you install a front-end, you won't be able to do X11 forwarding because there's no XServer running to forward to your local machine. Register BI Publisher in HTTPS Mode. For example:. 1) The remote machine needs to have xauth installed. We welcome your comments. I just want to make a local change to my system in order to prevent this from appearing. Turned out I needed to install xauth on my CentOS VM, and I discovered that by doing ssh -v, where I got the message "Remote: No xauth program; cannot forward with spoofing. The remote tunnel end gets its own cookie; the remote ssh server generates it for you and puts it in ~/. " (and it turned out to be that one -v would have been enough). com firefox. Phoronix was at the Linux Foundation Collaboration Summit and has two articles on the status of Wayland and X11 integration. ssh/rc (on the server!). debug2: channel_input_status_confirm: type 100 id 0 X11 forwarding request failed on channel 0. If you have access to a remote Unix or Linux system (either in your office or on the Internet), you can connect to it via Secure Shell (SSH. With a Code. If you don't use secured SSH X11 forwarding then you have to add the remote Puppy IP address to X0. In the first section, “Allow by Xauth Cookie” you can use the Xauth mechanism to provide authentication. X11 forwarding request failed on channel 0. Someone beat me to it - on the remote machine, you need to install the xauth program. You get a "No xauth data; using fake authentication data for X11 forwarding. Enable X11 forwarding for your new profile. Once complete, click Open at the bottom of the window. Click Next to proceed to the next screen. Solaris File : /etc/ssh/sshd_config The sshd daemon reads configuration data from /etc/ssh/sshd_config (or the file specified with sshd -f on the command line). This article by Damian Meyerscough shows you how to perform a remote installation over SSH which will encrypt traffic traveling over the wire. the client is using xauth authentication mechanism. Provides detailed control over port forwarding. I followed the guide link below and also using a Windows Server VM to connect but to no avail. maxauthtries. rnrn"Allow Remote Assistance invitation to be sent from this computer"rnrn"Allow users to connect remotely to this computer"rnrnBecause i have to manage our company LAN, sometimes i have no time to. So, what's the problem? The server has no xauth program. Running on OSX and using bash. 34, installed on a HpG7N54L miro-server. UTF-8 debug1: Remote: No xauth program; cannot forward with spoofing. I know the SSHd forwarding is turned on but this made no sense. Remote clients will be refused access after this time. You will need the remote code for your television, and you will need to understand how to program the XR11 remote. This functionality is useful for applications such as MATLAB or IGV, that require a graphical user interface. exe by double. 0 Mar 31, 2011. Regardless of the intent of the users, these are the devices and other resources accessible to the user account. Linux, android, bsd, unix, distro, distros, distributions, ubuntu, debian, suse, opensuse, fedora, red hat, centos, mageia, knoppix, gentoo, freebsd, openbsd. Most ssh setups, including the default compile of the proprietary version, not only automatically port forward X, they take care of access control and set your display variable. debug1: Sending env LANG = en_US. On rpm-based, do '$ yum provides xauth'. The version tested is cat6000-supk9. First, to respond to a few private suggestions that I received: 1) I checked and according to config. Linux, android, bsd, unix, distro, distros, distributions, ubuntu, debian, suse, opensuse, fedora, red hat, centos, mageia, knoppix, gentoo, freebsd, openbsd. I tried running remote X11 over 10 megabit back in teh day and it sucked. Second, according to a quick search, the server side you need to make sure xauth is installed. It still doesn't work though. Maybe I was forgetting the -X (I don't have a history to check, arh!). X11Forwarding yes. Solutions vary as well. These options are equivalent to the X11 forwarding checkbox in the Tunnels panel of the PuTTY configuration box (see section 4. This is essentially an execution of the first program which is found in the following order by the exec builtin command. and I get the following warning after connecting: Warning: No xauth data; using. The PC interacts with the server through the X-windows system, forwarding the display from the server to the PC. I know that SSH is configured properly on the linux machines because X11 forwarding works properly when connecting from my XP machine. settings in /etc/ssh/ : sshd_config:X11Forwarding yes. This warning occurs due to the differences between the local client & remote server SSH X11 forwarding setup, but X11 forwarding is still usable. Warning: No xauth data; using fake authentication data for X11 forwarding. For the SSH program we'll use PuTTY. If the Ubuntu server wasn't installed with an X Windows system (probable considering you had to manually install Gedit) this is clearly not present. XQuartz and on Windows you need two pieces of software: a secure shell program (ssh) to. Then add the following line. Best, Matt. X11-unix/X0: No such file or directory connect /tmp/. In this post, I will write about how to use Git for Windows to connect to a remote CentOS server and set up X11 forwarding to use the GUI applications on that server. ssh (SSH client) is a program for logging into a remote machine and for executing commands on a remote machine. In addition to gedit, you'll also need to install an xauth package. By default there is only localhost and it works with SSH forwarding. 2) It *does* work if I use the -x flag, so it's not an authentication problem. and I get the following warning after connecting: Warning: No xauth data; using. png", the same happens, no. XQuartz server. debug1: Requesting X11 forwarding with authentication spoofing.