linux4u.nz

Fail2ban is my choice for preventing breaches, it's highly configurable and blocks attacks or persistent users instantly, keeping the system safe and running smoothly.

I've used almost every flavour of linux, mostly RHEL and derivatives, currently running Rocky on my server and Alma on the household shared box.

Kali is great for penetration testing and is what I'm using on my daily machine but the updates come so hard and fast you have to be careful things don't ...

https://zonemaster.nz

Zonemaster performs many tests, such as checking DNSSEC signatures, or that different hosts can be accessed and that IP addresses are valid. This is all to make sure that your domain name runs as smoothly as possible.