Any OpenStack installation that hosts services and VMs for several customers poses a challenge for the security-conscious admin. Hardening the overall system can turn the porous walls into a fortress – but you'll need more than a little mortar.
Although developers appreciate Docker's ease of use and flexibility, many admins are worried about vulnerabilities. We look at various approaches to securing container images and the price to be paid.
Virtualization solutions isolate their VM systems far more effectively than a container host isolates its guests. However, implementation weaknesses in the hypervisor and configuration errors can lead to residual risk, as we show, using KVM as an example.
Several versions of the venerable Spanning Tree protocol have appeared through the years. We'll help you sort through the acronyms and show you which version is right for your network.
As automation of IT landscapes continues, a plethora of new tools reach the market to help admins with this task. Rundeck offers a web-based GUI and job delegation.
Fortran development is still progressing, with a new version scheduled for release in 2018. We look at Fortran's evolution into a modern language for HPC.
If you spend very much of your time pushing containerized services from server to server, you might be asking yourself: Why not databases, as well? We describe the status quo for RDBMS containers.
