I will circulate errors as soon as they are spotted and also put them in this file on the website. If you find any errors, please communicate them to me so I can distribute them to the class. ********************************************************* Here are some errors in the textbook. These come from http://samsclass.info/123/errata.html Errors in "Ethical Hacking and Network Defense" by Michael T. Simpson P. 4, figure 1-1 is not a network diagram. It's a floor plan. Network diagrams include the connections between computers, hubs, switches, routers, etc. P. 22: SYN stands for Synchronize, not Synthesis. See http://www.faqs.org/rfcs/rfc793.html P. 29, table 2-3 is wrong. There are only 126 class A addresses -- 127 addresses are loopback addresses. See http://en.wikipedia.org/wiki/Classful_network P.32, the second example is incorrect. The bit string it shows is 0 1 0 0 0 0 0 1, but it should show 1 1 0 0 0 0 0 1. Last modified 1-1-08 ************************************************************* Activity 2-3 is missing something in Step 4. You should type pass YourPassword and not just YourPassword as suggested in the book. *****************************************************