... contributed to Social Security for %d years.\n”,46); printf(“Methuselah collected from Social Security for %d years.\n”,904); Again, the result is the same The %d looks for an integer value, finds ... too much like a (zero) ߜ Don’t give similar names to your variables For example, the compiler may assume that forgiveme and forgivemenot are the same variable If so, an ugly situation can occur ... to you; I show you how to it a few chapters back, to limit the formatting for the %s placeholder Here, you’re telling printf() to format the floating-point number to only two places after the
Ngày tải lên: 12/08/2014, 09:21
... function’s parentheses. More on this later. ߜ Information on passing strings to functions is provided in my book C All- in-One Desk Reference For Dummies (Wiley). ߜ Sending a value to a function ... jerk() function is hungry for an integer value, which it calls repeat. ߜ The new jerk() function repeats the phrase Bill is a jerk for what- ever number you specify. For example: 28 570684 ... My advice is to stick with the format used in this book and try not to be alarmed if you see the other format used. Older C references may use the second format, and certain fogey C pro-
Ngày tải lên: 12/08/2014, 09:22
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... AppA.qxd 3/31/04 2:58 PM Page 360 360 C For Dummies, 2nd Edition The C language compiler Thanks to the C language’s popularity, many compilers are available for you to use with this book. I do, ... PM Page 362 362 C For Dummies, 2nd Edition The learn folder is where you place all the files created in this book. Linux, FreeBSD, Mac OS X, or Unix: To create a folder for your C program- ... transforms the meek and mild text file into a robust and use- able program on your computer. Read the proper subsection for compiling and linking specifics for your oper- ating system. For Macs
Ngày tải lên: 12/08/2014, 09:22
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... firewall to collect and remember information per user over time and must include mechanisms for coordinating the information if multiple fire- walls are used for the same purpose. 78 Part I: Introducing ... data portion (for example, the HTTP data) contains instructions for how long the data is valid or instructions not to cache the result at all The information is probably encrypted for a good ... to map a port (for example, 8030) on the public IP address of the firewall to a different port on the internal server, which allows for “secret” ports to your internal server. For example, you
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... addresses If you travel for work and connect from a variety of locations, this configuration won’t work for you ߜ Enforce authenticated SMTP for outgoing mail: Forcing all clients to authenticate ... forwarding feature forwards requests for a specific DNS domain to a designated DNS server As far as a firewall is concerned, each conditional forwarding target is just another target for outbound ... be forwarded to a different DNS server If your DNS server supports conditional forwarding, you must create both a TCP and a UDP firewall rule for each target DNS server The conditional forwarding
Ngày tải lên: 14/08/2014, 02:20
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... be determined for both NAT-D and NAT-T... used is 23.16.16.0/24 Because the firewall is performing NAT, the firewall must also be configured to perform static address mapping for all services ... filtering based on the format of the content. In some cases, a company doesn’t want its employees surfing for pornography, reading hate-group Web sites, or using the Internet for other content-related ... the actual informa- tion that is shown on a Web page or in an Internet application. Filtering con- tent refers to the actual format of data that can be downloaded from the Internet. For example,
Ngày tải lên: 14/08/2014, 02:20
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... collect information for registrations, newsletters, or purchas- ing information. Typically, this information is stored in a database. Figure 12-5 shows a typical DMZ configuration for a Web server ... firewall computer For example, if your firewall needs to contact a DNS server for name lookups,... forms of network address translation SNAT changes a packet’s source address before sending it ... application that’s dedicated to performing a specific task almost always does a better job than an operating system that’s responsible for performing many tasks For example, Windows comes with
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... intruder you want to block and select Block Intruder In the submenu, select For an Hour, For a Day, For a Month, or Forever In the Please Confirm dialog box, click Yes to confirm this change ߜ ... ensure that no private information is sent to the Internet without your knowledge For all outgoing Web, instant messaging, and e-mail traffic, the firewall scans for private information about you ... can use Bots (an abbreviation for robots) are software programs that automatically monitor entire ISP IP ranges for computers that come online and immediately a scan for well-known vulnerabilities
Ngày tải lên: 14/08/2014, 02:20
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... all the implications For more information on this topic, see Active Directory For Dummies, by Marcia R Loughry (published by Wiley Publishing,... logon information for your Internet Service ... and the Enterprise Edition, and you begin to wonder, “Which of these editions is right for me?” Because the Enterprise Edition is considerably more expensive than the Standard Edition, examine ... may gain by using the Enterprise Edition. The Enterprise Edition can do everything that the Standard Edition does — and more. You should con- sider the Enterprise Edition only if you need any of
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... more information about these commands in your operating system’s help system or in a TCP/IP book, such as TCP/IP For Dummies, 5th Edition, by Candace Leiden and Marshall... vendor for technical ... enter the following information on the General tab: Name: A logical name for the interface IP Address: The IP address for the network interface Net Mask: The subnet mask for the network interface ... mapping to map a public network IP address to an RFC 191 8 address For more information about NAT, see Chapter 3 For more information about private IP addressing, see Chapter 2 361 362 Part
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... provide support for very big networks as well as very small networks, we can change how many bits are used for each part of the address For example, we could use only the first bits for the network ... An IP packet header also contains some other information Most of the time, you don’t have to worry about this information For example, a field for the length of the packet tells your computer’s ... corresponding IP address instead Therefore, you should make sure that for each rule that uses a DNS name, you also create a corresponding rule that applies to the IP address for that DNS name Some firewalls,
Ngày tải lên: 04/12/2015, 19:57
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... Harvey Windows ® XP FOR DUMmIES ‰ QUICK REFERENCE 2ND EDITION 01_574647 ffirs.qxd 9/10/04 11:39 AM Page i www.it-ebooks.info Windows ® XP For Dummies ® Quick Reference, 2 nd Edition Published ... Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Reference for the Rest of Us!, The Dummies Way, Dummies Daily, The Fun and Easy Way, Dummies. com, and related trade dress ... good humor produced DOS For Dummies, the “Mother” of all For Dummies books. Thanks for the inspiration and the book that made it all possible, Dan. Greg Harvey Point Reyes Station, California 01_574647
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Ngày tải lên: 21/06/2014, 10:20
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... search for a quick-fix solution Before you reduce your prices to increase... liquid consumed was in the form of Coca-Cola Coca-Cola officials used this information as the basis of an effort to ... buy. As a result, you devote the bulk of your marketing efforts to the steps that take place long before money changes hands. These efforts involve targeting customers, designing the right product ... can put this information to work as you prioritize and manage your product line. ߜ Sell what people want to buy: Study your list for surprises. You may find products that are performing better
Ngày tải lên: 21/06/2014, 11:20
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... including all editions of iPod touch For Dummies and iPod & iTunes For Dummies. $29.99 US / $35.99 CN / £21.99 UK ISBN 978-0-470-92050-3 Macintosh/Programming Go to Dummies. com ® for videos, ... Wiley, the Wiley Publishing logo, For Dummies, the Dummies Man logo, A Reference for the Rest of Us!, The Dummies Way, Dummies Daily, The Fun and Easy Way, Dummies. com, Making Everything Easier, ... productivity tools (Keynote for presentations, Numbers for spreadsheets, and Pages for word processing and page formatting) on the iPad, which would be unthink- able for today’s iPhone or iPod...
Ngày tải lên: 06/03/2014, 18:20
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