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Wednesday, July 31, 2013

Cyber Attack - Tutorial

Ping of Death Attack:

This is a very old Denial of service attack method, it will indicate send a ping request to a remote computer. The normal size to a ping request is 8 in size but this one will be 65.536 in size. when a so large ping packet is reaching the host computer doesn't know how to handle a so big packet. so the computer to the victim will even crash or hang. This attack can easily be executed from Command Prompt with typing ' ping -l 65.536 www.abc.com ' This attack will normally don't have any effect today since everyone have a working firewall. This attack is coming from an exploit in the TCP/IP suit.


TearDrop Attack:

This is Denial of service attack, this will indicate that you are making the victims computer to send a packet so will be transported by the TCP to the remote computer. whenever a packet will be sent over the internet, this will be broken down into the smaller datagram's, when that happened they will get the unique number so the TCP know how to rebuild them into normal size, when they have reached the host. What happened here it won't get the unique number so when they are coming to the remote computer it can't restore them to normal size. When this happened it will send any new request to the host computer to send new packets the same problem will occur again and it will use up all the resources on the host computer so it will even crash or hang. This is an exploit in the TCP/IP suit. It will also indicate that the attacker is using a spoofed IP address.

Monday, May 27, 2013

Tips to search better in google


This is an old one, but very important: Put quotes around phrases that must be searched together. If you put quotes around "electric curtains," Google won't waste your time finding one set of Web pages containing the word "electric" and another set containing the word "curtains."



Similarly, put a hyphen right before any word you want screened out. If you're looking up dolphins, for example, you'll have to wade through a million Miami Dolphins pages unless you search for "dolphins - Miami."


Google is a global White Pages and Yellow Pages. Search for "phonebook:home depot norwalk , ct," Google instantly produces the address and phone number of the Norwalk Home Depot. This works with names ("phonebook: robert jones las vegas, NV") as well as businesses.

Don't put any space after "phonebook." And in all of the following examples, don't type the quotes I'm showing you here.

Google is a package tracker. Type a FedEx or UPS package number (just the digits); when you click Search, Google offers a link to its tracking information.


Google is a calculator. Type in an equation ("32+2345*3- 234=").


Google is a units-of-measurement converter. Type "teaspoons in a gallon," for example, or "centimeters in a foot."


Google is a stock ticker. Type in AAPL or MSFT, for example, to see a link to the current Apple or Microsoft stock price, graphs, financial news and so on.


Google is an atlas. Type in an area code, like 212, to see a Mapquest map of the area.


Google is Wal-Mart's computer. Type in a UPC bar code number, such as "036000250015, " to see the description of the product you've just "scanned in." (Thanks to the Google Blog, http://google. blogspace. com , for this tip and the next couple.)


Google is an aviation buff. Type in a flight number like "United 22" for a link to a map of that flight's progress in the air. Or type in the tail number you see on an airplane for the full registration form for that plane.


Google is the Department of Motor Vehicles. Type in a VIN (vehicle identification number, which is etched onto a plate, usually on the door frame, of every car), like "JH4NA1157MT001832, " to find out the car's year, make and model.


For hours of rainy-day entertainment, visit http://labs. google.com . Here, you'll find links to new, half-finished Google experiments- like Google Voice, in which you call (650) 623-6706, speak the words you want to search for and then open your browser to view the results. Disclaimer: It wasn't working when I tried it. (Ditto a lot of these experiments. )