Network security

Question 1

Firewalls

Answer 1

Stateful firewalls do less packet checking than stateless firewalls.
Stateless firewalls can also be referred to as access control lists.
Statefull firewalls can allow for lower latency network access than stateless firewalls.

Question 2

Proxy Firewall Operation

Answer 2

1. Intercept user requests, routing through the firewall.
2. Verify user identity and permissions.
3. Analyze request contents, apply security rules.
4. Connect to destination servers on behalf of users.
5. Monitor and log traffic details.
6. Cache frequently accessed content for speed.
7. Process server responses before forwarding.