As the title said its Packet filter
so i won't talk to much about it
SO WHY JGUARD ?
cuz it will satiate your need to control the whole server
also you can request new features for your needs.

Can`t find a trused one to manage server events ?
Advanced events in your mind that no one can handle it ?
Do you want to scheduler your events ?
JBot can make it all try it now !

Your VPS under attack ?
JFlood is here to protect you ! By limitting connections per second , you are protected against ddos attack.

Automatically backup your database even if you're away from vps.