1 Linux Security Overview 3
2 Proactive Measures and Recovering from a Break-In 23
3 Mapping Your Machine and Network 69
4 Social Engineering, Trojans, and Other Hacker Trickery 129
5 Physical Attacks 155
6 Attacking Over the Network 177
7 Abusing the Network Itself 211
8 Elevating User Privileges 247
9 Password Cracking 283
10 How Hackers Maintain Access 315
11 Mail and FTP Security 369
12 Web Servers and Dynamic Content 417
13 Access Control and Firewalls 459
App. A Keeping Your Programs Current 491
App. B Turning Off Unneeded Services 501
App. C: Online Resources 509
App. D: Case Studies 513
Index 543