Articles tagged "Cloud"

Planning to upgrade your Greenhost VPS? Great! Keeping a VPS's operating system up to date is important to make sure it keeps running smoothly and safely. OS updates bring new features, as well as security improvements, bug fixes, and resource-saving optimisations.

The latest versions of Debian and Ubuntu made a significant change in how some system files are stored. In some situations, you will need to do a quick and simple intervention before upgrading to Debian 12 Bookworm, releasing today (June 6th, 2023), or Ubuntu 22.04 Jammy Jellyfish, as the upgrade will not work out of the box on a...

It is now possible to use cloud-init with our VPS's. Cloud-init scripts define what needs to be done immediately after a VPS is started for the first time. These files can be used to automate the setup of a VPS. This can range from small tasks — like configuring the machine or adding more users — to more complex tasks like installing software.

Cloud-init is a technology that is supported by many cloud providers. In addition to cloud-init scripts that you might find anywhere on the internet, Greenhost offers a repository with scripts that you can use to automate certain steps in setting up...

By default we do not filter traffic. However, if you have a VPS, you maybe want to block unwanted traffic or you would like to only allow traffic from specific sources. This blog explains a bit the basics of firewall configuration on a Greenhost VPS. This document assumes a Debian or Ubuntu based system, however, the basics are similar on all Linux based operating systems

What is a firewall

A firewall controls traffic flowing into, leaving or going through your VPS. This manual will discuss only traffic going into your VPS and does not focus on filtering outgoing or forwarding/routing traffic...