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es:howtos:window_managers:remotex_linux2linux [2019/02/19 20:14 (UTC)] (actual)
slackwarespanol creado
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 +====== Remote X: Linux to Linux ======
  
 +As X11 in its newer versions doesn'​t allow incoming tcp connections by default anymore (see the relative [[https://​cgit.freedesktop.org/​xorg/​xserver/​commit/?​id=cc59be38b7eff52a1d003b390f2994c73ee0b3e9|commit)]],​ since Slackware 14.2 you have to launch your X server (the one which has to display the remote application) explicitly enabling them, like
 +
 +     ​startx -- -listen tcp
 +
 +if you are using a display manager to launch your X session refer to its documentation for enabling this in its configuration file.
 +====== Plain Ol' Vanilla X11 Forwarding ======
 +
 +**NOTE:** in the X11 world, the **SERVER machine** is the one listening for a connection (your desktop). ​ The **CLIENT machine** is the one initiating the connection (the machine you are executing the commands on).  I know, it sounds backwards but, it is actually correct if you understand the X11 connection.
 +
 +1) Tell your X11 Server Linux box to accept X11 connections from the Client machines with the xhost command. You can add the the command to .bashrc or .profile:
 +   ​EXAMPLE:​ xhost +192.168.1.36
 +
 +2) Start the connection from the **client** (the remote) machine to the **server** (your desktop) machine:
 +Connect to the remote machine via ssh/​telnet/​rlogin/​whatever and run:
 +
 +     ​DISPLAY=X11_SERVER_IP:​0;​export DISPLAY;​APPLICATION_YOU_WANT_TO_RUN &
 +     
 +     ​EXAMPLE:​ DISPLAY=192.168.1.10:​0;​export DISPLAY;​xterm &
 +
 +====== X11 Forwarding Over SSH======
 +
 + 1) Edit /​etc/​ssh/​sshd_conf on the **remote machine**.
 +
 +   ​CHANGE:​
 +   #​X11Forwarding no
 +   
 +   TO:
 +   ​X11Forwarding yes
 +   
 +   ​CHANGE:​
 +   #​X11UseLocalhost yes
 +   
 +   TO:
 +   ​X11UseLocalhost yes
 +
 +2) ensure that X11Forwarding is enabled in /​etc/​ssh/​ssh_conf on the **local machine**.
 +
 +3) open an X11 forwarded ssh session to the remote machine:
 +
 +     ssh -X USER@REMOTE_MACHINE ​
 +     ​XAPPLICATION_YOU_WANT_TO_RUN
 +
 +
 +
 +**__PROBLEMS__** \\
 +**PROBLEM:​** ssh connection is complaining about an "​Invalid MIT-MAGIC-COOKIE"​. \\
 +**FIX:** start a less secure ssh session:
 +
 +     ssh -Y USER@REMOTE_MACHINE
 +
 +
 +====== Sources ======
 +<!-- If you are copying information from another source, then specify that source -->
 +<!-- * Original source: [[http://​some.website.org/​some/​page.html]] -->
 +<!-- Authors are allowed to give credit to themselves! -->
 + * Originally written by [[wiki:​user:​arfon | arfon]]
 +<!-- * Contributions by [[wiki:​user:​yyy | User Y]] -->
 +
 +<!-- Please do not modify anything below, except adding new tags.-->
 +<!-- You must remove the tag-word "​template"​ below before saving your new page -->
 +{{tag>​howtos software X_Windows X11 author_arfon}}

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