WhitewallManager is a whitelist manager. It aims to be a web based administration tool for administrators using a default-deny approach to the security of the network they are responsible for.
Default-deny is a superior model for network security as compared to default-allow, which is how the security model of most local area networks is modeled. Default-deny disallows all but access granted to resources which you specifically allow.
The advantage to this is that any new resources which turn...