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When you conduct a “ping sweep,” you send an Internet Control Message Protocol (ICMP) echo request to a range of Internet Protocol (IP) addresses to determine if the host computers at those addresses have network connectivity. While a ping sweep is a useful troubleshooting tool in a business network, malicious users can also use it to flood and incapacitate networks with these requests. Therefore, many Network Administrators, and even security-conscious home users, protect against such attacks by blocking incoming echo requests (pings) from sources outside their networks....

If you have forgotten the unlock pattern for your Android phone, it doesn’t mean you’re locked out of the device permanently. You can break the code by entering the account information from the Gmail account you used when setting up the device. The phone will check the email address and password you provide against your login credentials on the Gmail site. If the information matches, the phone will unlock and prompt you for a new pattern....

A CD-RW, also known as a rewritable CD, can hold most any file type, including documents, images and videos. To transfer these files from the computer to the disc, you have to burn them onto it. If you are using Windows XP, it is really quite simple to burn a CD-RW. It does not require any extra software since it is included in the operating system. These steps will also work for CD-R discs....

Many modern CD players (standalone, car or otherwise) support the use of “CD Text,” which supplies the player with information about the songs on an audio CD, such as artist, title information and song length. Many burned or customized CDs will not possess this text, because many CD burning software suites do not burn this information automatically. However, most modern CD burning software supports this feature. Burn your next audio CD with CD Text to take advantage of this system....

Tranferring home movies to DVD is a popular past time thanks to inexpensive digital cameras and recordable DVDs. Not all DVD burning programs create video DVDs from MP4 files. A DVD video consists of video in MPEG format one or two. Several DVD authoring programs with the capability to convert one or more MP4s for DVD are available for Ubuntu. You can also convert the MP4 files with a video player and then use any DVD burning program to create the DVD....

Digital music provides listeners with the convenience of hearing their favorite songs without having to deal with cassettes, discs or other physical playback sources. However, there may come a time in which you may need to present or transport music in compact disc (CD) form. Memorex CD-Rs are popular writable discs onto which you may burn any music from your personal computer using iTunes or Windows Media Player. Gather your desired digital music and put an unused Memorex CD-R into your computer’s CD writer drive to get started....

You may want to burn PC games for backup purposes, downloaded content or when you borrow a game from a friend. There are two different methods in which this can be accomplished. One way is to burn downloaded content, and the other is to burn a PC game disk to a blank CD.

Mexico is the southernmost county in North America. It is bordered by the United States to the north; the Pacific Ocean on the south and west; Guatemala, Belize and the Caribbean Sea on the southeast; the Gulf of Mexico on the east. You can call Mexico from the state of Texas with either a standard landline or a cellular phone by entering the correct dialing codes and the Mexican phone number you want to call....

Changing the Username To change your Tumblr handle, click the gear icon on your dashboard and then click the name of your main blog on the sidebar. Click the pencil icon next in the Username section, then type in a new username. Click “Save” and you’re done. Redirect Your Old URL If you want to avoid losing viewers who may go to your old URL, act fast before someone claims your old username....

Icons on the iPhone screen are designed to all be a standard size. However, some users find the default size to be too small. If you have trouble seeing the iPhone icons, you can use the Accessibility menu to zoom into the screen. This allows you to customize the size of all objects on the iPhone, including the icons. Writer Bio

If your Facebook posts seem to be traveling through time, there may be something wrong with your computer’s time settings. Facebook bases your time stamps off your computer’s clock, rather than an internal time keeping system. By resetting the time on your computer, you should be able to get your time stamps back to normal. Though this method will help you to get your posts back on schedule, Facebook does not allow you to change the time zone of an account after its initial creation....

Changing Your Voice in Real Time Plenty of applications exist that will let you change your voice in real time, applying the effects as you speak. These changes can be as simple as adding a little resonance to your voice so that you sound less flat to more dramatic effects – some voice-changing applications can make a male voice sound female and vice-versa, or change your voice altogether, making you sound like anything from a science fiction villain to a cartoon mouse....

Twitter lets users publish tweets for the general public to read. You don’t need a Twitter account to view public tweets, but you do need one to view hidden or “protected” tweets. Even then, you can’t view those tweets until the user specifically grants you permission to do so. The only way to check hidden tweets on Twitter is to visit the writer’s Twitter profile and request permission to follow that user....

Updated July 21, 2017 Locate the two numbers on the back of your watch. The top number is your watch’s model number. Find the bottom number. This is the serial number. It generally comprises two letters and four numbers. In some cases, however, it will be three letters and three numbers, or six numbers. Visit Tag Heuer’s website (see Resources) and locate an authorized retailer in your area. Take the watch to your retailer, which will be able to authenticate your watch and tell you how old it is from the serial number....

The print heads on Canon i960 InkJet printers can become clogged for several reasons. The most common issues are ink buildup over time, print heads that dry out because of infrequent use or ink cartridges that dry out. You can use several methods to clean the Canon i960 print head, both diagnostically and manually. Writer Bio

Let’s face it. Laptop computers get dirty fast. The way we casually use them increases their exposure to spills, crumbs and other debris. For small computers like the Acer Aspire One, the exposure to dirt and debris is likely even greater. If neglected, eventually these particles can work their way into the keyboard and may cause the computer to malfunction. The screen is another magnet for dirt. For optimum viewing, you need to regularly clean the dust and smudges off the computer screen....

Executing regular commands to “clean” your computer’s hard drive will keep your PC functioning well long after its purchase date. These built-in commands include the Disk Defragmenter and the Disk Cleanup utility, both of which will help to reorganize and remove excess files from your hard drive in the pursuit of keeping your computer as functional as possible. Writer Bio

If your CD player starts skipping around or missing some tracks entirely, the culprit is a probably a dirty lens head. With front-loaded CD exchangers you can’t get to the head without disassembling the entire unit. Fortunately, you can send a cleaning disc inside to do your work for you. You can make one yourself, so there’s no need to buy commercially. You should also clean the front of the CD player, as dirt gets inside not just from the discs themselves but from collecting on the front of the player and being pushed inside over time....

Perfectly good computers can seem old before their time if regular tune-ups aren’t performed. Computers may run slow because of temporary Internet files and spyware left behind as a result of visiting web pages, disk errors and fragmented files. Old files and unused programs also take up space on a computer that make it take longer to run the programs you want. Computers can run more efficiently if simple steps are taken to optimize their performance....

Turn on the paper shredder. Turn on the reverse switch, if applicable. Reversing the cutters can sometimes dislodge the paper and bring pieces up through the top. Turn off the paper shredder. Unplug the shredder. Disconnecting the shredder will ensure the cutters do not accidentally cut your fingers or damage your tools. Lift up the lid and shake gently to dislodge loose paper pieces. Place the lid upside down on a flat surface....