Mac OS X Leopard - ARCAism

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354 CHAPTER 20 LEOPARD NETWORKING Monitoring Network Traffic Raising the firewall is a good first step, but nothing beats basic situational awareness. If your computer was infected with malware and participating in zombienet denial-of-service attacks or sending out spam, would you know? I like to know what my computer is doing, which is why I love Activity Monitor, located in /Applications/Utilities. Activity Monitor lets you know what’s running and how much memory and CPU it’s taking up. It also lets you monitor when things are writing to disk or sending and receiving traffic over the network, as shown in Figure 20-4. Figure 20-4. Monitoring network traffic with Activity Monitor Activity Monitor has a convenient animated Dock icon, so even when the monitoring window is not open, I can keep an eye on packets traveling over the network. If I see a lot of activity and I’m not actively using the network, I want to know why. TIP A lot of root and system programs have arcane invocations that can make it hard to tell what a given program in Activity Monitor actually is. You can Google the program name, or you can look it up on such convenient lists as Amit Singh’s Mac OS X Hacking Tools: www. kernelthread.com/mac/osx/tools.html. If you want to take network monitoring to the next level, you need to check out Little Snitch, by Objective Development. Little Snitch complements your firewall by letting you know when applications try to send data from your machine. Why might an application send out packets? If it’s iChat or Mail or Safari, it probably has a legitimate reason. On the other hand, there are a lot of other reasons you might not be in total agreement with, such as phoning home with personal information the developer thinks it’s OK to take without asking.
You can also use Little Snitch to selectively allow or block individual servers. For example, you might allow Safari to connect to a web page you are trying to view, but not allow it to connect to a site hot-linked from that page, such as an advertising or tracking network. Like the firewall, Little Snitch has a list of rules you can build on the fly via notifications, as shown in Figure 20-5. Unlike the firewall, Little Snitch has a lot of configuration options, being designed for more advanced users. Even so, it’s still a Mac application; you can install and run it without bothering with any of that stuff. Figure 20-5. Little Snitch noticing an application sending out packets Unlike the built-in firewall and Activity Monitor utility, Little Snitch costs $25. Like all good software, it comes with a free demo mode. Download it from the developer’s site (www.obdev.at/) and give it a try. I think you’ll agree it’s well worth the price. Network Utilities Every UNIX distribution comes with a full compliment of networking tools, and Mac OS X is certainly no exception. Generally you have to go to the command line to use UNIX tools, but Apple has bundled the most common network utilities into a graphical application aptly named Network Utility, which lives in /Applications/Utilities. Network Utility encompasses seven areas of functionality. Each lives in its own tab, with several subfeatures delimited with pop-up boxes, as shown in Figure 20-6. Info CHAPTER 20 LEOPARD NETWORKING 355 Chances are your computer has several network interfaces. Most Macs have an Ethernet port, an AirPort card, and a FireWire bus, all of which are capable of connecting to the Internet. The Info panel lets you get statistics on all of your network interfaces, such as their hardware (MAC) and Internet (IP) addresses, their make and model, whether they’re active, and at what speed they are connected. You can also see how many packets they’ve sent and received, and how many errors and collisions they’ve logged.
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Mac OS X Leopard: Beyond the Manual
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PART 5 Getting to Know Darwin CHAPT
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viii CONTENTS CHAPTER 2 The File Sy
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x CONTENTS CHAPTER 7 Managing Appli
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xii CONTENTS CHAPTER 12 Address Boo
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xiv CONTENTS CHAPTER 16 iLife ’08
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xvi CONTENTS CHAPTER 21 Port Forwar
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xviii CONTENTS CHAPTER 25 Quick Loo
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xx CONTENTS Running Microsoft Windo
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xxii Acknowledgments First of all,
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Getting to Know Leopard PART 1
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4 CHAPTER 1 WORKING IN LEOPARD: THE
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28 CHAPTER 2 THE FILE SYSTEM Figure
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30 CHAPTER 2 THE FILE SYSTEM Table
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32 CHAPTER 2 THE FILE SYSTEM Table
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34 CHAPTER 2 THE FILE SYSTEM While
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36 CHAPTER 2 THE FILE SYSTEM Hidden
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38 CHAPTER 3 USING SPOTLIGHT, EXPOS
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System Preferences Many of the conf
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Option Description Click in the scr
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Table 4-2. Desktop Image Aspect Sel
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Dock The Dock preference pane (Figu
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CHAPTER 4 SYSTEM PREFERENCES 59 Fig
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Figure 4-11. The Input Menu tab in
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Figure 4-13. The Spotlight preferen
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Figure 4-16. The Display tab of the
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NOTE As you may have noticed, click
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Figure 4-22. When you have multiple
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The Options tab (Figure 4-25) provi
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Figure 4-26. The Keyboard tab in th
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Figure 4-28. The Mouse tab on the K
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Processor When you install the Xcod
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Internet & Network The next section
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Selecting Login Options (Figure 4-3
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This window requires some basic inf
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Figure 4-44. The Time Zone tab in t
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Figure 4-47. The Simple Finder The
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Figure 4-49. The Mail & iChat tab o
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Figure 4-52. The Software Update pr
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The Text to Speech tab (Figure 4-55
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Figure 4-57. The Seeing tab of the
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Figure 4-60. The Keyboard tab provi
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Today more and more features are bu
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At this point, you may be skeptical
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CHAPTER 5 CONNECTING PERIPHERALS TO
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CHAPTER 5 CONNECTING PERIPHERALS TO
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Figure 5-7. The printer Options she
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Connecting Bluetooth Devices Blueto
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The Bluetooth Setup Assistant will
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Figure 5-18. Finished successfully!
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CAUTION To eject media in Leopard,
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Connecting Other Peripherals Beside
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The Ink preference pane (Figure 5-2
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122 CHAPTER 6 COMMON LEOPARD MAINTE
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136 CHAPTER 7 BACKUP, SYNCHRONIZATI
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144 CHAPTER 8 LEOPARD SECURITY •
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146 CHAPTER 8 LEOPARD SECURITY NOTE
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148 CHAPTER 8 LEOPARD SECURITY Figu
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150 CHAPTER 8 LEOPARD SECURITY Figu
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152 CHAPTER 8 LEOPARD SECURITY •
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154 CHAPTER 8 LEOPARD SECURITY Summ
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Connecting to the Internet One of t
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Usually those three steps should ge
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NOTE One application notably missin
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Technology Description CHAPTER 9 CO
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Making an Ethernet Connection CHAPT
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Figure 9-7. A PPPoE connection work
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LEAP: Lightweight Extensible Authen
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Browsing the Web with Safari Leopar
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Figure 10-2. You can customize your
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Menu/Submenu Item Keyboard Shortcut
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Figure 10-4. All of your bookmarks,
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Figure 10-6. Safari running with ma
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CHAPTER 10 BROWSING THE WEB WITH SA
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Figure 10-10. The AutoFill options
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Private Browsing Another way to pro
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RSS Feeds in Safari RSS (Really Sim
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On the right side of the view area
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Figure 10-16. Selecting a region in
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Mail, Address Book, and iCal Mail T
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Item Keyboard Shortcut Description
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Figure 11-2. The first step in addi
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CHAPTER 11 MAIL, ADDRESS BOOK, AND
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When you select a message, its cont
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Creating Mail Rules CHAPTER 11 MAIL
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Figure 11-11. Mail will open a shee
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Using Mail Stationery The Mail appl
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Figure 11-14. Leopard’s Address B
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Creating Groups You might want to c
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Figure 11-17. iCal in Leopard (Week
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Adding Time Zone Support iCal has a
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iChat Instant messaging has been ga
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Figure 12-2. The Account Setup shee
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NOTE For more options, see the “C
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Ironically, the IM central server a
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For best results, select an even, n
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NOTE The Share My Screen... and Ask
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• Collect chats into a single win
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Figure 12-14. Tabbed chat helps you
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Working with Applications PART 4
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248 CHAPTER 13 APPLICATION BASICS S
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250 CHAPTER 13 APPLICATION BASICS F
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252 CHAPTER 13 APPLICATION BASICS F
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254 CHAPTER 13 APPLICATION BASICS T
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256 CHAPTER 14 APPLE APPS INCLUDED
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266 CHAPTER 15 .MAC NOTE You can al
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268 CHAPTER 15 .MAC iDisk Another f
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iLife ’08 Apple’s iLife ’08 i
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NOTE iPhoto keeps track of all your
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Figure 16-3. iMovie ’08 and its n
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Figure 16-5. Building a Welcome pag
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New in GarageBand ’08 is a featur
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iWork ’08 Apple has been producin
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One great feature of Keynote is tha
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Figure 17-4. A Pages document in Pa
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Getting to Know Darwin PART 5
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290 CHAPTER 18 INTRODUCING DARWIN A
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404 CHAPTER 23 MAC OS X AUTOMATION
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What is it about the Mac that makes
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Figure 24-2. Cocoa components in In
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Figure 24-3. Core Data modeling in
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Not so fast! CHAPTER 24 MAC OS X DE
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Figure 24-6. Address Book’s Peopl
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CHAPTER 24 MAC OS X DEVELOPMENT: TH
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Publication Subscription Syndicatio
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Figure 24-16. Core Animation’s ef
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On Mac OS X, this abstraction goes
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Ruby is the new hotness, and it shi
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WebObjects A kind of Cocoa for the
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448 CHAPTER 25 MAC OS X DEVELOPMENT
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Occasionally while using Leopard, y
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Appendixes
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526 APPENDIX A WHAT’S NEW WITH LE
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544 APPENDIX B INSTALLING MAC OS X
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Index Symbols and Numerics # (hash)
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alloc method, Objective-C, 483, 492
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Attach File command, Mail, 199 atta
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CalDAV standard, 430 iCal and, 227
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emote computing by Secure Shell in
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digital cameras connecting, 117-118
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saving text, 318, 319 searching tex
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filters Core Image filters, 439 Ima
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ftps (FTP Secure), 367 function key
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Instant Message framework, 431 inte
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IP addresses, 163 configuring Mac f
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list (port list) command, MacPorts,
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memory management, Objective-C, 482
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New Message window, Mail, 217 New N
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password sheet creating keychains a
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opening, 106 Supply Levels tab, 106
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unning PowerPC code, 518 Rotate too
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Services option, Mail, 198 set comm
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Spotlight Comments section, Info wi
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identifying differences in document
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users running commands, 303 who els
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Window items, Safari, 178 Window me
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