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 it is planned to automate deploying and configuring complex insfrastructure setups, Chef is a mighty tool. Focussing the Infrastructure as Code (IaC) manifesto, it offers more than conventional Configuration Management and can be used to replace manual tasks with faster, repeatable and measurable automatisms. When …

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Recently I had the problem that my homelab's Linux machines managed by Puppet were generating dozens of error messages when updating the catalog: 1# puppet agent --test 2Error: /File[/var/lib/puppet/lib/puppet/parser/functions/load_module_metadata.rb]/ensure: change from absent to file failed: Could not set …

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Readers of my blog know that I have been maintaining a homelab for a couple of years. I really like leveraging products I'm focussing on in my working hours also at home. In other words: I like gaining hands-on experience and learning things from scratch. To access my lab remotely, I have been using a VPN solution in …

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After my last Spacewalk 2.7 installation I had the problem that synchronising repositories using the web interface failed with the following error: The system protocol (/var/log/messages) included the following finding: 1Jan 24 21:02:13 st-spacewalk03 server: Caused by: java.lang.RuntimeException: File not found: …

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When installing Spacewalk 2.7 under CentOS 7.4 along with PostgreSQL 9.2.23, I recently stumbled upon the following error: 1# spacewalk-setup 2* Setting up SELinux.. 3** Database: Setting up database connection for PostgreSQL backend. 4** Database: Installing the database: 5** Database: This is a long process that is …

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The last post of this series introduced the software projects Foreman and Katello. If you followed the instructions, you were able to login to a fresh Foreman installation. In this part, the new installation is filled with live: first software contents are added to deploy and manage systems later. If you already had a …

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The last couple of years I spent a lot of time in managing Linux systems with Spacewalk and Red Hat Satellite 5. Because the application was superseded by the vendor, I investigated on migrations to the successor. Back in 2008, Spacewalk was published as upstream project to Red Hat Network Satellite. Since then, a lot …

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If you're utilizing Red Hat Satellite 6 for managing virtual Red Hat Enterprise Linux instances, you will need to leverage Red Hat Subscription Management (RHSM) for maintaining licenses. In comparison with the former Red Hat Network Classic licensing, signed manifest certificates are used. For bigger system landscapes …

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Recently, I had to remove a SAN LUN on a physical Enterprise Linux system. The first step was to alter the multipath service configuration file (/etc/multipath.conf) and make the daemon reload its configuration: 1# vi /etc/multipath.conf 2... 3ESC ZZ 4 5# service multipathd reload Afterwards, the device was removed …

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