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—es:howtos:window_managers:remotex_linux2linux [2019/02/19 20:14 (UTC)] (actual) – creado slackwarespanol
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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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