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Linux Firewalls: How to Actually Secure a Cloud Server (iptables, nftables, firewalld, ufw)
(blog.hofstede.it)
this post was submitted on 12 Jul 2026
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If you're trying to be cost-effective, renting a VPS for a fixed term instead of using a IaaS platform that provides all these things just by clicking a checkbox, then caring about your firewall is a necessary part of building the system image that you deploy. You can of course set up your own private networking between systems and build the same type of architecture that a IaaS would provide, but to do that you're going to need to understand everything about linux networking and netfilter already.
Maybe that's the context. All of my cloud hosting work is very large corporate systems in the big three clouds. You're talking about Hostinger or Scalahosting type services, yes?