Articles from ADMIN Issue 63
A new trajectory for system administrators: Security and documentation
The latest Ubuntu Server release, Hirsute Hippo, offers improvements to the Ubuntu Server Live Installer, with enhancements to automation and stability and the ability to convert Debian Installer preseed scripts into Live Installer artifacts with the autoinstall-generator snap.
The powerful Ansible automator comes without airs and graces, does without complex syntax, self-documents, and has no need to hide its light compared with Puppet and other configuration management tools.
CFEngine 3 comes with a promise of more efficient configuration management and strict compliance with policies; however, it faces some tough competition.
The Chef automator borrows some of its vocabulary from the world of cooking. Its cookbooks contain good recipes for many recurring tasks, and admins can follow them to prepare palatable results with manageable overhead.
Puppet, the ancient rock of configuration management, is not easy to learn, but the program rewards admins with flexibility and security for those willing to tackle the learning curve.
SaltStack is a fast and reliable modular toolbox written in Python that contains ready-made modules for many configuration management purposes.
Tune the iptables configuration for Docker by establishing your own forwarding rules.
HTTP/2 introduced multiplexing, resulting in superior bandwidth utilization over HTTP/1.1, and HTTP/3 solves the problem of transmission delays from packet loss by replacing TCP with QUIC.
