Posts that are also published on the Open Source blog network or UbuntuUsers Planet
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 … Read more
Recently, I stumbled upon the following issue while installing a Python utility on an older CentOS system:
Doing a recent Puppet agent upgrade from version 3.x to 4.x I stumbled upon the following errors:
Leveraging SNMP is often a pain when appropriate MIB files (Management Information Base) are missing – e.g. because the manufacturer did not document them or only offer them at fee. When utilizing a Perl program … 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
