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A directory harvest attack or DHA is a spamming technique used to find and collect valid e-mail addresses. These addresses are later inundated with unwanted messages, usually advertisements (spam). How does a DHA work? Generally, a DHA is attempted as a brute force attack on a specific or multiple domains. This attack involves guessing combinations of common usernames and sending automated e-mails addressed to them. It then determines which ones are valid based on the type of response received by the e-mail server....

A front end may refer to any of the following: A front end is the graphical user interface of a computer that makes it easier to use. For example, Microsoft Windows 3.11 was a front end for the MS-DOS command line. Before Windows, the user had to memorize multiple commands to perform tasks on the command line that made computers difficult for most users. With Windows, once a user learns how to use the mouse for navigation, interactions between the user and computer become easier....

A HHD (hybrid hard drive) is a storage device that is a combination of an SSD (solid-state drive) and an HDD (hard disk drive). Its intended purpose is to bring together the performance of an SSD with the affordability and high capacity of an HDD. A hybrid hard drive may combine two drives (one SSD, one HDD) into the same computer system. Or, it may be a SSHD (solid-state hybrid drive), combining an SSD and a hard disk drive into a single device, as shown below....

Monster Cable is a company in California that manufactures high-quality cables for connecting audio and video equipment. Such equipment includes Blu-ray players, stereo receivers, and speaker systems. Their cables feature gold-plated connectors, and a lifetime warranty. Monster Cable has also manufactured audio headphones, partnering with Beats Electronics from 2008 through 2012. Monster Cable manufactures composite, S-Video, DVI, and HDMI cables, with speaker wire and surge protectors designed for audio and video equipment....

Node encryption is a security measure used to protect data in a group of interconnected computers by encrypting the data before it’s sent to another node. Once it is received by the correct node, the data is decrypted. Encrypt, Node, Security terms Related information Computer security help and support.

An identity is something that helps to make a person unique from another person. For example, a person’s name, age, sex, hair color, height, and weight are all physical traits that makes up a person’s identity. In addition to physical attributes, an identity can include unique numbers such as a social security number, driver’s license number, passport number, phone number, and credit card numbers. What is an online identity? An online identity, IID (Internet identity), or Internet persona is a person’s virtual identity that helps identify them in online communities, chat, forums, and online gaming....

Released 2005, Identified by model number PSLX300USB Student-Contributed Wiki An awesome team of students from our education program made this wiki. The Sony PS-LX300USB can’t play sound through computers or their speakers. However, the turntable will still connect to a computer for other functions. If the USB Audio Codec Option is missing from your speaker menu, it was likely chosen as a disabled device. To fix this, go into the Recording Devices, under Sound and Speaker, menu and choose the Disabled Devices tab....

Difficulty Easy Steps 3 Time Required 5 minutes Sections 1 Keyboard 3 steps Flags 0 BackSony Vaio PCG-161L Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications Introduction What you need Step 1 Keyboard Turn your device upside down and remove the 6 10mm screws attaching the back casing to the device using a phillips head screwdriver....

Difficulty Moderate Steps 6 Time Required 5 minutes Sections 1 Back Assembly 6 steps Flags 0 BackSony Xperia XA1 Ultra Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications Introduction What you need Step 1 Back Assembly Wedge your finger under the bottom ridge of the SD card insert. Pull outwards with your fingers to remove the SD card from the left side of device....

Difficulty Moderate Steps 8 Time Required Suggest a time?? Sections 1 Battery 8 steps Flags 5 Action Shots Be an action hero! This guide needs images that better demonstrate how to perform specific actions. Needs Better Images Better photos will improve this guide. Help out by taking, editing, or uploading new ones! Needs More Images A few more images would make this guide’s procedures crystal clear. Missed a Step Oops! This guide is currently missing some important steps....

Difficulty Moderate Steps 9 Time Required Suggest a time?? Sections 1 Heating Element 9 steps Flags 0 BackTatung TAC-6G Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications Introduction What you need Step 1 Heating Element Lift the lid and bowl from top of the device Be sure device is not plugged in before beginning replacement of heating element Lift the lid and bowl from top of the device...

Difficulty Easy Steps 6 Time Required 3 minutes Sections 1 Flush Valve Seal 6 steps Flags Member-Contributed Guide An awesome member of our community made this guide. It is not managed by iFixit staff. BackToilet Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications Introduction This is a shortcut, time/labor-saving, method of installing a replacement “flush valve seal” to stop water inside the toilet tank from seeping/leaking down the drain (and the continuous, annoying sound that accompanies this water loss)....

Difficulty Moderate Steps 10 Time Required 30 - 50 minutes Sections 1 Carbon Brush 10 steps Flags Better Introduction Improve this guide by completing or revising its introduction. BackBlender Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications What you need Step 1 Carbon Brush Remove the base of the blender by removing the 4 screws at underneath....

Difficulty Moderate Steps 10 Time Required 10 - 15 minutes Sections 3 Battery 3 steps Bottom Access Panel 2 steps Keyboard 5 steps Flags 1 Featured Student Guide This guide has been the hard work of our awesome students and is found to be exceptionally cool by the iFixit staff. BackToshiba Satellite L45-S7423 Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide...

Difficulty Difficult Steps 11 Time Required 1 hour Sections 7 Battery 1 step RAM 1 step Wi-Fi Card 1 step Hard Drive 1 step Optical Drive 1 step Keyboard 2 steps Motherboard 4 steps Flags 0 BackToshiba Satellite M45 Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications Introduction The Motherboard is a circuit board that connects important hardware such as the Graphics Cards, Solid State Drives, Hard Drives, Ram, Mouse and keyboard....

Difficulty Moderate Steps 3 Time Required 5 minutes Sections 1 Back Cover 3 steps Flags 0 BackToshiba Satellite P50W-C Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications Introduction What you need Step 1 Back Cover Turn the laptop off, unplug the AC adapter, and any other auxiliary components. Turn over the laptop and proceed to take out the seven 5mm silver JIS #1 head screws....

The camera will not respond after pressing the “on” button. Make sure that the battery is fully charged before attempting to power on the device. If that does not work, then consider replacing the battery. If you are having this problem with one power source, try using a different one. For example, if you are using your laptop, try using a wall outlet. If that does not work, try using a backup battery charger....

Difficulty Moderate Steps 7 Time Required 30 minutes Sections 2 Back Panel 3 steps Screen 4 steps Flags 0 BackVisual Land Prestige 7L Full Screen Options History Save to Favorites Download PDF Edit Translate Get Shareable Link Embed This Guide Notify Me of Changes Stop Notifications Introduction What you need Step 1 Back Panel Remove the two 8mm Phillips Head screws located at the bottom of your device. Remove the two 8mm Phillips Head screws located at the bottom of your device....

Difficulty Moderate Steps 3 Time Required Suggest a time?? Sections 1 Washing machine won’t turn on without thumping door handle 3 steps Flags 2 In Progress This guide is a work in progress. Reload periodically to see the latest changes! Member-Contributed Guide An awesome member of our community made this guide. It is not managed by iFixit staff. BackWashing Machine Full Screen Options History Save to Favorites Download PDF Edit...

Everything in Linux is considered a file to maintain consistency. That includes hardware devices, printers, directories, and processes. Regular files such as music, text, videos, and other multimedia files also have additional data associated with them called metadata. What are Inodes in Linux? Inode entries are the basis of the Linux file system. They manage the metadata about a file and are essential pieces of the inner workings of Linux. What Is The Structure Of a File System?...