~~~
Only open port is 22 and 9999, nothing else.
No need 3rd party software.
Then you are not securised if an exploit is trying to change something in your system, i think.
Exploit to windows
You can't execute a exploit on windows with Comodo.
You need to bypass Comodo firstly

Linux is used by a tons of noobs who are not able to secure their windows

that's the real problem, because finally their are not able to secure their linux too

If you don't know how many exploits are working on linux it's because this is a secret

Most part of linux users are good, so keep the secret or you will lose your exploits. Ha ha ha <3