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Recently I needed access to a HP Management Processor (MP) without knowing the appropriate IP address. A possibility is to utilize a serial connection to the MP – but this is kinda complicated if you … Read more
Recently I had the problem that my homelab’s Linux machines managed by Puppet were generating dozens of error messages when updating the catalog:
It is a common procedure to use templates (“golden images“) when deploying virtual machines. Recently I had an issue when deploying SLES machines – newly registered systems within SUSE Manager replaced older one. The management … Read more
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 … Read more
With FirewallD, some Linux distributions introduce a new default firewall differing heavily from previous interfaces. This post focusses the basic concept and some practical examples. A major difference is that the firewall now supports changes … Read more
Recently I had some issues with a Linux cluster running Corosync, Pacemaker and Apache. I was unable to run the redskin as ressource – starting always failed with “invalid parameter“: # crm resource start apache … Read more
Last Tuesday, one of the SUSE Linux Expert Days 2018 events was taking place in Frankfurt. Every year, SUSE arranges plenty of those events in order to update customers with talks and demonstrations about new … Read more
A fresh Spacewalk installation usually defines user accounts in a local manner – including permissions. Especially for bigger system landscapes with requirements such as Single Sign-on, this is not a practical solution. Fortunately, Spacewalk and … Read more
After my last Spacewalk 2.7 installation I had the problem that synchronising repositories using the web interface failed with the following error:
When installing Spacewalk 2.7 under CentOS 7.4 along with PostgreSQL 9.2.23, I recently stumbled upon the following error:
