CST 311 - Week 8
We are finally wrapping up the course! Overall I feel as if I learned a lot about networks from this course, however in this specific week we focused on firewalls and intrusion detection systems. First, firewalls are known to isolate an organizations internal net from larger Internet, and allows certain packets while blocking others. There are three types of firewalls: stateless packet filters, stateful packet filters, and application getaways. There are limitations that come with firewalls and gateways, there can include the all or nothing policy for UDP, IP spoofing, and limitations with software in terms of knowing how to contact the gateway. Intrusion detection systems are are essentially ways safeguards against certain network security attacks and can greatly enhance security. Although the final part of this course was short, it provided a great overview of network security mechanisms.