You are a network security officer who has finally convinced their company to buy a firewall to secure their network from Internet based threats. Your task is to create the rule list for this new firewall. You may make the following assumptions about this network: • This will be a Triple-homed firewall with one interface connected to the Internal LAN zone, another connected to the Internet zone, and the final interface connected to a DMZ. • The firewall's three IPs will be: Internal - 172.16.255.1, External - 66.43.24.1, DMZ - 66.43.24.17 • The company operates a DMZ for their online services in the 66.43.24.16/28 subnet. • There is an internal server farm occupying the 172.16.100.0/24 subnet. • The web development team occupies the 172.16.50.0/24 subnet. • The accounting department occupies the 172.16.20.0/24 and 172.16.21.0/24 subnets. • Remote access users use the 172.16.10.0/24 subnet. • Two business partners, ACME and FredCo, connect to the company through dedicated circuits; they use the 192.168.100.0/24 and 192.168.200.0/24 subnets respectively. • The firewall is stateful and should exercise a deny-by-default policy.

a  social news website  is an  internet  website  that features  user-posted stories. such stories are ranked based on popularity, as voted on by other users of the site or by website administrators. users typically comment online on the news posts and these comments may also be ranked in popularity. since their emergence with the birth of  web 2.0, social news sites have been used to link many types of information, including news, humor, support, and discussion. all such websites allow the users to submit content and each site differs in how the content is moderated. on the  slashdot  and  fark  websites,  administrators  decide which articles are selected for the front page. on  reddit  and  digg, the articles that get the most votes from the community of users will make it to the front page. many social news websites also feature an online comment system, where users discuss the issues raised in an article. some of these sites have also applied their voting system to the comments, so that the most popular comments are displayed first. some social news websites also have a  social networking  function, in that users can set up a user profile and follow other users' online activity on the website.