Question: Exercise 1 (Firewall rules). Company Example Inc. owns the IP prefix 1.2.3.0/24 and is connected to its (single) ISP by a router with basic packerfiltering

Exercise 1 (Firewall rules). Company Example Inc. owns the IP prefix

Exercise 1 (Firewall rules). Company Example Inc. owns the IP prefix 1.2.3.0/24 and is connected to its (single) ISP by a router with basic packerfiltering capabilities that has three interfaces. The company operates the following hosts: an external web server at domain www.example.com (supporting HTTP and HTTPS), an 'Intranet' (internal) web server at domain www.internal.example.com, one or more name server(s), one or more DNS resolver(s), a DHCP server, and about two hundred workstations. 1. For maximal security, would there be a significant advantage(s) to use multiple name servers and/or resolvers? If so, which advantage(s)? 2. Design the network architecture, explaining and showing in a diagram (1) which of hosts will be connected to which interface of the router, (2) the IP address and subnet mask assigned to any host. 3. Present desired filtering rule(s) associated with DNS. 4. Repeat, for rules associated with the web servers

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