As someone else pointed out, Linux runs the vast majority of internet servers. That is a big target.
The beauty of Linux -- open-source software -- is that as soon as a threat comes out, someone is on top of it, and it gets patched. In the proprietary world (like MS Windoze), it might take hours or days -- if not weeks -- to get a patch out.
I've got a bunch of computers with VirtualBox, and for years I would install various Linux distros just for the challenge and to keep up with what's going on out there. Frankly, there's not much of a challenge anymore with most Linux distros.
Those were the days -- get a six-pack on a Friday night and struggle to install some new Linux distro. But not anymore....
PCLOS, Linux Mint, Ubuntu, Debian -- they all install just as easy as Windoze, and you´re off an running. If you want a challenge, then go with Arch Linux. Conquer that one, especially on a VirtualBox installation, and you're a Linux pro, and you won't ever look back.
And then, if you're really into it, you can go totally hard-core and try "Linux From Scratch."
Linux installations aren't a challenge anymore. What I do for fun now is resuscitate old hardware. When you've got a 15-year-old laptop that barely runs Windows XP, but then comes alive with a Linux distro, it's very satisfying.
But those days are numbered too, as most Linux distros are abandoning 32-bit.
I'll close now, because this makes me realize that I'm getting old, and it is sad.
Thsnks.
I'll close now, because this makes me realize that I'm getting old, and it is sad.