The average user may believe that all the hype they read about security on the internet is overrated. To be honest some of it is and some of it is just to sell you a product you do not need.

In the case of Internet Facing Services this is not the case. If you have an internet facing service then you have to be sure your server is secure. This is why I insist on SELinux on my servers. AppArmor is easier to configure though not as configurable as SELinux for as many cases. I would also strongly suggest you never disable SELinux (or AppArmor if that is what you are using) to ease installation and implementation. It is not worth the risk. Just learn to use your Gnu/Linux Hardening system to its fullest extent. Do not disable it.

I have attached a screenshot of an ssh session to my VPS. As you can see every few seconds an attack fails. This is why the security is required.