While setting up my Nextcloud calendar on an iOS device the other day, I encountered the following error: 1CalDAV account verification failed The error also affected contacts via CardDav - the usual troubleshooting options failed: Password reset Using another device Use different URL and port combinations Finally, I …

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The Shelly Plug WLAN socket adapters from the Bulgarian manufacturer Allterco are very popular. They are inexpensive and - unlike other alternatives - also allow switching without cloud constraints via their own MQTT broker. However, some devices come with severely outdated firmware, for which the search for updates …

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Legacy software is often used longer than planned. Running older Java software on high-resolution displays with more than 1080p is quite hard by default. To fix this, manually setting scaling via command-line pararameters is sufficient: 1$ java -Dsun.java2d.uiScale=3.5 -jar app.jar In this case, 3.5x or 350% scaling is …

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While there are scripts for migrating SLES to SLES4SAP, there are no tools the other way around. If you deployed the wrong template by mistake you can change the product without reinstallation with some manual steps. A comparable procedure has also been documented by the vendor for installing SUSE Manager. First of …

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When automatically customizing openSUSE 15.2 guests under VMware vSphere 6.7 recently, I stumbled upon the famous "Guest Customization failed" issue (once again). After eliminating the most common error (not having Perl installed which is necessary) I had a look at the VMware Compatibility Guide. Looks like …

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When using Ansible under WSL (Windows Subsystem for Linux) recently, I stumbled upon the following error: 1Failed to create temporary directory. 2In some cases, you may have been able to authenticate and did not have permissions on the target directory. Consider changing the remote tmp path in ansible.cfg to a path …

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During a recent installation of Red Hat Identity Management or FreeIPA I stumbled upon the following error message: 1DEBUG The ipa-server-install command failed, exception: RuntimeError: CA did not start in 300.0s 2ERROR CA did not start in 300.0s 3ERROR The ipa-server-install command failed. See …

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When using tools such as GitLab can cloned via HTTP and SSH. Especially the second choice can be handy if there is no VPN available - but keep in mind, also sending DNS via the jumphost. The first step is establishing a SSH connection leveraging port forwarding: 1$ ssh -A -D 1337 USER@IP -i pinkepank.key Afterwards, …

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When implementing larger tasks in Ansible, you might thinking about writing your own Ansible role sooner or later. For this, the ansible-galaxy command can help you: 1$ ansible-galaxy init my-role 2- my-role was created successfully Beside handlers, variables and meta data, also a test task is created. Using this task, …

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While using the Ansible modules get_url and unarchive I recently stumbled upon the following errors: 1failed to create temporary content file: 'The read operation timed out' 2failed to create temporary content file: (-1, 'Unexpected EOF') After some research it figured out that the urllib3 library …

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