# Services and Communication Systems

Subject of the MSc in Computer Science course at the University of Milano-Bicocca.

## Implementation of a firewall functionality using SDN with a OpenFlow architecture

Written in Italian, in this essay are presented some firewall functions
implemented through a Software-defined Network architecture using an OpenFlow
protocol analyzing the possible advantages and implications that can derive in
both security and in network management.

* [📝 PDF of the First Essay](https://git.meliurwen.dev/attachments/4b60c552-b4bd-4eed-ab6b-8fa630326648)

## Performances of firewalls built with dedicated appliances: dependency on the number of rules and possible optimizations

Written in Italian, based on the prototype of an SDN-enabled (stateful) hardware
firewall that uses OpenFlow as a communication protocol. It focuses on the
impact that the number of rules applied on a firewall can have on performances
and discuss the possible practices to be adopted or avoided) to mitigate such
issues.

* [📝 PDF of the Second Essay](https://git.meliurwen.dev/attachments/fdf929f5-4937-408b-bdfa-7c2ef5a7e44d)