X11 Connection Rejected

Thu, 28 Apr 2022 00:00:00 +0000

When switching to root after the typical SSH with X11 forwarding enabled this error can appear:

$ X11 connection rejected because of wrong authentication.
$ Error: Can't open display: localhost:10.0

The workaround seems to include copying the MIT-MAGIC-COOKIE-1 from the user who ssh’d in to the root user using xauth. Here’s how:

First verify the $DISPLAY being used and list the MIT-MAGIC-COOKIE-1 used for it :

Fattening the workflow, part 2: r10k

Tue, 01 Dec 2020 00:00:00 +0000

In the previous post I discussed the control repository structure. In this post I’ll talk about r10k. That tool is used for deploying control repository branches into matching Puppet environments on the Puppet server. Installing r10k is very straightforward with the bundled gem:

$ /opt/puppetlabs/puppet/bin/gem install r10k

After this you’ll need a settings file for r10k, /etc/puppetlabs/r10k/r10k.yaml:

--- 
 :cachedir: /opt/puppetlabs/puppet/cache/r10k 
 :sources: 
 control: 
 basedir: /etc/puppetlabs/code/environments 
 prefix: false 
 remote: git@gitlab.com:myorg/control-repo.git

Several requirements must be met before the configuration above will work:

Ssh on Puppeteers Oy

X11 Connection Rejected

Fattening the workflow, part 2: r10k