Download Computer Network Security. Theory and Practice by Jie Wang PDF

By Jie Wang

Computer community safety: idea and Practice introduces to the reader an entire and concise view of community protection. It offers in-depth theoretical assurance of contemporary developments and sensible suggestions to community protection threats. This ebook can be utilized for a one-semester community safeguard path for graduate and upper-level undergraduate scholars, in addition to a reference for IT professionals.

Dr. Wang has been Professor of laptop technological know-how on the college of Massachusetts Lowell given that 2001, Director of its middle for community and data protection considering 2004,and Chairman of its division of laptop technological know-how because 2007.

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If the traffic analyzer learns this information from analyzing IP headers, an attacker may conclude that something big is about to happen. The best way to combat traffic analysis is to encrypt IP headers. But an IP packet with an encrypted IP header cannot be routed to the destination. Thus, a new plaintext IP header must be inserted in front of the encrypted IP header for delivery. This may be done using a network gateway. A gateway is a special-purpose computer shared by many users in the local network.

This version contains WinPCap4. 1. You will need to install it as well. If you are using other operatIng systems, please download and Install from the Wlreshark WebSIte a correspondIng version of Wireshark. Then execute Wireshark. We want to sniff APR packets. For this purpose, on the open window of "The Wireshark Network Analyzer", select Capture, Options, and then select network card in the Interface box. In the Capture Filter empty box type in arp, and then select Start to launch ARP smffing.

Namely, only when an mfected program IS executed or an mfected file IS opened, a VIruS contamed m It may get executed. g. delete system files) to the system where its host resides or replicate itself to infect other healthy hosts in the system. A computer worm is also a piece of software that can reproduce itself. Unlike a VIruS, a worm IS a stand alone program. In other words, It does not need a host to bve m. A worm can execute Itself at any tIme It WIshes. When executed, a worm may do harm to the system where It reSIdes or repbcate Itself to other systems through networks.

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