Powerful and flexible web-based server management control panel
If you aren't in this to learn a lot, you may want to also consider a web hosting control panel like cPanel (not free), DirectAdmin(not free), webmin + virtualmin (free for multiple sites, virtualmin Pro is not free), Centos webpanel (not FOSS but free for non-Pro), Hestia control panel (FOSS), Plesk Obsidian (not free).
A set of tools and examples to run a flow-pipeline (sFlow, NetFlow)
You may also want to think about using a free CloudFlare account to do caching and give some protection to your websites. Just keep in mind that if you're going to ssh and don't want to pay for the features, you'll either need to hit your website by its IP or have a DNS record it doesn't act as a proxy for, which you can set in CloudFlare. Some of the control panels have CloudFlare plugins to manage this as well.
Appwrite - The Open Source Firebase alternative introduces iOS support. Appwrite is an open source backend server that helps you build native iOS applications much faster with realtime APIs for authentication, databases, files storage, cloud functions and much more!
Lynis - Security auditing tool for Linux, macOS, and UNIX-based systems. Assists with compliance testing (HIPAA/ISO27001/PCI DSS) and system hardening. Agentless, and installation optional.
Lynis is a good tool that will help you harden your system. I believe in redhat it is already in the EPEL repo so you should be able to sudo dnf install lynis and run it.
Any tips to stop DDOS attacks on my site
2 projects | reddit.com/r/masterhacker | 10 Mar 2022
Using HestiaCP to manage a Virtual Private Server (VPS)
3 projects | dev.to | 16 Jan 2022
Tools for monitoring web traffic on my LAN?
1 project | reddit.com/r/selfhosted | 29 Jan 2023
Ask HN: Router that can block URL patterns
1 project | news.ycombinator.com | 28 Jan 2023
Is it okay to run a Raspberry pi 24/7/365 every time?
2 projects | reddit.com/r/raspberry_pi | 25 Jan 2023