SaltyVagrantSaltyVagrant - page 6
Salty Vagrant provides a collection of material all aimed at informing you about DevOps (in both the organisational and technical sense).
Fences and Ambulances
TL;DR Prevention is better than cure, but we need both available when managing complex IT systems.Removing a Locked Virtualbox VM
TL;DR Occasionally you will get a Virtualbox VM into a locked state and this will prevent it being deleted. Attempts to delete or unregister the VM result in the error Stderr: VBoxManage: error: The machine ’centos64_c6402_1454036461345_59755’ is already locked for a session (or being unlocked). This article describes how to resolve this problem.sudo users
TL;DR Protecting your system from accidental or malicious change is made simpler by allowing users only limited access. This especially means limiting users who have root or ‘superuser’ access as these users have effectively unlimited power. When it is necessary for a user to have this access it is best that they have a normal (unprivileged) account for day-to-day activities with the ability to temporarily promote themselves to ‘superuser’ to run commands that require this elevated access.Why not install SSH on every server
TL;DR Tempting though it may be, blindly enabling SSH on all your servers is a huge mistake.Forget DevOps
TL;DR DevOps is a cancer and must be excised.