HTTP (Hypertext Transfer Protocol)

HTTP (Hypertext Transfer Protocol) is the set of rules for transferring files (text, graphic images, sound, video, and other multimedia files) on the

World Wide Web. As soon as a Web user opens their Web browser, the user is indirectly making use of HTTP. HTTP is an application protocol that runs on top of the TCP/IP suite of protocols (the foundation protocols for the Internet).

HTTP concepts include (as the Hypertext part of the name implies) the idea that files can contain references to other files whose selection will elicit
additional transfer requests. Any Web server machine contains, in addition to the Web page files it can serve, an HTTP daemon, a program that is designed to wait for HTTP requests and handle them when they arrive. Your Web browser is an HTTP client, sending requests to server machines.
When the browser user enters file requests by either “opening” a Web file (typing in a Uniform Resource Locator or URL) or clicking on a hypertext link, the browser builds an HTTPrequest and sends it to the Internet Protocol address (IP address) indicated by the URL. TheHTTP daemon in the destination server machine receives the request and sends back the requested file or files associated with the request. (A Web page often consists of more than one file.)

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Computer Ports – Name and Location Of Connections On Computer

For those of you who do not know what the connectors or connections on the back of your computer are called or where they are located… We have created a number of Computer Port Charts and other computer peripheral charts to help you identify the common connectors and ports on the back of your desktop computer or laptop. The charts include location for sound, audio, video, usb, serial and parallel ports. Included are separate charts forhard drives, desktop ram memory, laptop ram memory and a chart that explains everything on the back of your computer by name, location and illustration.

Computer ports are connecting points or interfaces with peripheral devices that work to communicate with your computer.

Computer Ports Identification Chart

Most Common PHYSICAL computer ports:

– USB Port (Universal Serial Bus): Created in the mid 1990’s to standardize communications between computers and peripheral devices. USB ports can be used as a power supply for different devices like cellphones, cameras, laptop coolers and more. There are four different types of USB computer ports: USB 1.0 and 1.1 released between 1996 and 1998 with a speed range starting from 1.5 Mb/sec up to 12 Mb/sec. Then USB 2.0 was released in 2000 with a maximum speed of 480 Mb/sec. Finally USB 3.0 was released in 2008 with a maximum speed of 5 Gb/sec.

– Ethernet / Internet Ports: were first introduced in 1980 to standardize the local area networks (LAN). Internet ports use RJ45 connectors and have speeds between 10 Mb/sec – 100 Mb/sec – 1 Gb/sec – 40 Gb/sec – 100 Gb/sec.

– IEEE 1394 Ports: This technology was developed by Apple between 1980 and 1990 with the name “FireWire” and it is the equivalent of the USB.

– TRS Ports: Used for receiving and transmitting analog signals mainly audio.

– PS/2 Ports: Introduced in 1987 to replace the serial mouse and keyboard.

– Serial Port: Uses the DB9 socket connector and transfers information one bit at a time between the computer and external peripherals.

– VGA ports (Video Graphics Array): This port has 15 pins on three rows and it is used for connecting the monitor with the video adapter from the computer motherboard to display video on your monitor.

– HDMI (High Definition Multimedia Interface): Ports on computer to transmit High Definition (1080p+) Video from the computer video card to the monitor.

– DVI (Digital Visual Interface): Computer ports used to transmit uncompressed digital video data.

Common Computer Ports Chart

Desktop Ram Identification Chart

Hard Drive Identification Chart

Notebook RAM Memory Identification Chart

Back of Computer Port Identification Illustration

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Remote Desktop Protocol (RDP)

Remote Desktop Protocol (RDP) is a secure network communications protocol for Windows-based applications running on a server.

RDP allows network administrators to remotely diagnose and resolve problems encountered by individual subscribers. RDP is available for most versions of the Windows operating system as well as Mac OS X. An open source version is also available.

Noteworthy properties of RDP include encryption, smart card authentication, bandwidth reduction, resource sharing, the ability to use multiple displays and the ability to disconnect temporarily without logging off. RDP also allows redirection of functions such as audio and printing.

RDP can support up to 64,000 independent channels for data transmission. Data can be encrypted using 128-bit keys and the bandwidth reduction feature optimizes the data transfer rate in low-speed connections.

The protocol has presented some security issues, however. For instance, if an administrator opens a thin-client connection between computers, an attacker who is able to break into the RDP connection would have administrator privileges on both computers. It is generally recommended that RDP only be used when it is absolutely necessary and that both the administrator and end user run with the lowest level of privileges possible.

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Radare – The Reverse Engineering Framework

Radare started out as a simple command line interface for a hexadecimal editor supporting 64 bit offsets to make searches and recovering data from hard-disks. It has evolved into a project that is composed of a hexadecimal editor as the central point of the project with assembler/disassembler, code analysis, scripting features, analysis and graphs of code and data and easy unix integration. Essentially, it has become a reverse engineering framework, with plugins and much more.

radare2 itself is the core of the hexadecimal editor and debugger. Allows to open any kind of file from different IO access like disk, network, kernel plugins, remote devices, debugged processes and handle any of them as if they were a simple plain file.

It implements an advanced command line interface for moving around the file, analyzing data, disassembling, binary patching, data comparision, searching, replacing, scripting with Ruby, Python, Lua and Perl.

Features

• CLI and visual modes
• Yank and paste
• Perl/Python scripting support
• Virtual base address for on-disk patching
• vi-like environment and command repetition (3x)
• Debugger for x86-linux/bsd and arm-linux
• Data bookmarking (flags)
• Scripting (no branches or conditionals yet)
• Own magic database (rfile)
• Little/big endian conversions
• Data search
• Show xrefs on arm, x86 and ppc binaries
• Data type views
• Data block views
• Visual mode commands

DOWNLOAD LINK:
radare2-0.9.7.tar.xz

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Block Facebook On Your Computer In Few Simple Steps

I had previously posted about Blocking Facebook on your computer but many users were facing difficulties doing that. So In this tutorial i will share with you guys an amazing programme or small little tool that will allow you block facebook on your computer easily in just few simple steps. So lets get started

How To Use Facebook Blocker ? 

 1. First download Facebook Blocker by Clicking Here
  2. Extract the file and right click on Facebook Blocker.exe and run it as administator(Important)
  3. Press 1 in order to  backup your host file to be on the safe side.

  4. Now Press 2 to block facebook
  5. Its time to check if facebook is blocked or not to do that Press 5
  6. Hope this help you if you have any question leave a comment below.

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Simple Trick To Find Facebook Profile ID

In my previous post i have posted about Facebook status update trick in which we use profile id, but what if  person got username. So this is the trick which will let you get profile id of any person who got custom username. Check below image and see how URL of  facebook profile looks before and after custom username.

How To Get Facebook Profile Id ?

In case of Profile ID before custom username you can easily identify it by looking at Profile URL, But in case of profile with custom username its not same. Below are simple steps to find Profile ID having custom username.

• Go to the profile you want to find Profile ID
• That URL will look like this www.facebook.com/username
• Change that URL to graph.facebook.com/username
• Then you will get something like below image.

      

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