Short tip

Short tip: Ansible – “failed to create temporary content file: ‘The read operation timed out'”

While using the Ansible modules get_url and unarchive I recently stumbled upon the following errors:

Short tip: Python TypeError: init() takes exactly 2 arguments (4 given)

Recently, I stumbled upon the following issue while installing a Python utility on an older CentOS system:

Short tip: Puppet – “Unable to fetch my node definition, but the agent run will continue”

Doing a recent Puppet agent upgrade from version 3.x to 4.x I stumbled upon the following errors:

Short tip: VirtualBox 5.2 installation under macOS 10.13

VirtualBox enjoys great popularity where it is required to virtualize common operating systems for conventional use-cases at no cost. In comparison with other hypervisors such as VMware Workstation, VirtualBox only offers basic graphics acceleration – … Read more

Short tip: Install missing SNMP MIBs under Debian Linux

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

Short tip: Find out HP Managepent Processor IP address

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

Short tip: Manage cloned systems with SUSE Manager

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

Short tip: Apache and Pacemaker: invalid parameter

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

Short tip: CentOS 7.4, PostgreSQL 9.2.23 and Spacewalk 2.7: Could not install database

When installing Spacewalk 2.7 under CentOS 7.4 along with PostgreSQL 9.2.23, I recently stumbled upon the following error:

Short tip: Move running processes into another terminal

Every Linux user knows the following scenario: a running process should be moved to another terminal. An example: an application update takes longer than expected and the status should be monitored on the go in GNU … Read more