Week 5 Chapter 6 - Whitney Nelson Week 5 Chapter 6 CSC 382...

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Whitney Nelson Week 5 – Chapter 6 CSC 382 1. The untrusted network is the system of networks outside of the specified organization in which the organization has no control over, like the Internet. A trusted network is the system of networks inside the organization that is under the control of the organization (Ch6 Page 38). A firewall prevents certain information from moving between two different levels of networks. The firewall filters traffic from the untrusted network to the trusted network to make sure that it is not harmful. (Ch6 Page 40). 2. UDP packets do not have connections. TCP packets usually creates a connection from one host computer to another computer. One single transaction would not usually involve TCP and UDP ports (Ch6 Page 40,42,44). 3. The application firewall is installed on a dedicated computer separate from the filtering router but it is used in conjunction with a filtering router (Ch6 Page 48). A packet-filtering firewall examines the header information of data packets that come into a network and can selectively filter packets based on header information such as destination address, source address, and packet type. This firewall is installed on a TPC/IP-based network (Ch6 Page 40). The application firewall, or a proxy server, can be configured to run special software that acts as a proxy for a service request. Organizations run a server to avoid exposing it to direct user traffic by installing a proxy server. Then, the proxy receives the requests and returns the requested pages to the user (Ch6 Page 48). 4. Static filtering firewall requires a set of filtering rules that are developed and installed with the firewall. The rules are sequentially created by either the direct editor or uses a programmable interfaces. A
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  • Fall '16
  • Barnes
  • IP address, Web server, Packet filtering, Ch6 Page

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