Firewalls are hardware and software systems that protect a network from attacks coming from the Internet. Packet filtering firewalls are efficient, fast and provide a good level o...
Network firewalls and routers use a rule database to decide which packets will be allowed from one network onto another. By filtering packets the firewalls and routers can improve...
Among the various options for implementing Internet packet filters in the form of Access Control Lists (ACLs), is the intuitive – but potentially crude – method of processing t...
There is a growing demand for network devices capable of examining the content of data packets in order to improve network security and provide application-specific services. Most...
The presence of replicas or near-replicas of documents is very common on the Web. Documents may be replicated completely or partially for different reasons (versions, mirrors, etc...
Ernesto Di Iorio, Michelangelo Diligenti, Marco Go...