Igor's Blog
Programming, DIY, Games, Hacks, and Tech

No matter how much you want to escape running graphical applications on a remote Linux server there are times (like when configuring Oracle WebLogic domains for example) that you are forced to do so. Sometimes, the user you have to be running these applications as is not the same as the your login user, this leads to errors like this...
 Error
X11 connection rejected because of wrong authentication.
Error: Can't open display: localhost:10.0


Ooops! This is easy to resolve though.

Before continuing, make sure you are running ssh with the -X switch (and that you have an X11 server running on your machine). Now after logging in as your initial user, do this:
 Terminal
xauth list


That will give you some output similar to this...
 Terminal
myhost.mydomain.com/unix:10 MIT-MAGIC-COOKIE-1 1183c75928e9dc95378aa3172b142652


Take note of the above and change to the user you need to run the graphical app as...
 Terminal
sudo su - appuser




Now you need to run xauth again, but this time not using 'list' but 'add' and after the 'add' command you provide the info that the 'list' command gave you above, like so...
 Terminal
xauth add myhost.mydomain.com/unix:10 MIT-MAGIC-COOKIE-1 1183c75928e9dc95378aa3172b142652


Then if everything went right, you can run your graphical app (xclock in the screenshot below).
xclock.png


-i

comments powered by Disqus
Other posts you may like...

Recent Blog Posts

A hack to create an uber jar with the Maven Shade Plugin using local jar files

Is it worth it? Apple USB-C Digital Multi AV adapter vs a cheap eBay clone

Running X11 graphical applications after changing to another user using 'sudo su'

How to stop Facebook using ad images as post sharing thumbnails

Picking lists for Atari Lynx capacitor replacement kits

Performance - 2012 Retina MacBook Pro vs 2017 MacBook Pro

Look and feel - 2012 Retina MacBook Pro vs 2017 MacBook Pro

Using math to work out the diameter of hard to reach water cooling pipes

How to get the unreachable shard in the Hinterlands in DragonAge Inquisition

Measy RC12 wireless 2.4Ghz keyboard touchpad review

Recent Galleries

Monument Valley 2 is released and does not disappoint

Space Food - Chocolate Ice Cream with Chocolate Chips

Legeod Star Wars AT-DP kit

DIY spare parts computer build with a RAIDMAX Anura case

Fake 'Lepin' brand Lego packaging

Hardwood garden bench with clear resin void filler

Fixing a 3D printer extruder that stopped heating up

Easily increase disk space in a Lenovo Ideapad 100S 14" laptop with an M.2 SSD

Making a multi-piece 3D printed solder spool holder stand

DIY indoor apartment grow light wiring

My Other Web Sites

Igor and Elise's Travels
Riverside Expressway Cam
300 George St Blogumentary

My Online Tools

UUID to OID Converter
Guru JSON-RPC Tester
Extrudifier Object Designer
Travel ┬ÁBlog

Blogs and Friends

Matt Moores Blog
Georgi's FlatPress Guide
Perplexing Permutations
The Security Sleuth
Ilia Rogatchevski
Travelling Fairy

Blog Activity

Blog Activity
Don't forget to
me for more great articles!
Don't show this again