Personally I use two different versions of Linux on two different machines. For development I will Debian, I've found that it has a lot of prebuilt in tools that allow me to improve efficiency, the interface is wonderful. If I need to test my server for some changes or weaknesses I'll use a Kali machine, Kali was built for the soul purpose of penetration testing, it works wonders if you're testing on yourself or need to find a weakness in your own code. It has a lot of built in applications to do this (some a bit fiddly) but all in order those two are the ones I've found to be the best.
Personally I use two different versions of Linux on two different machines. For development I will Debian, I've found that it has a lot of prebuilt in tools that allow me to improve efficiency, the interface is wonderful. If I need to test my server for some changes or weaknesses I'll use a Kali machine, Kali was built for the soul purpose of penetration testing, it works wonders if you're testing on yourself or need to find a weakness in your own code. It has a lot of built in applications to do this (some a bit fiddly) but all in order those two are the ones I've found to be the best.
Sounds interesting, maybe I can try installing Debian in a new disk in my desktop
Would certainly either dual booting or having a separate disk to try out operating systems before hand.