Proxy Server and Functions

The word proxy comes from the Latin proximus, which means close. Proxy server is a server that helps us to maintain our privacy in accessing the Internet. When we access the Internet using a proxy, a web page that we visit will not be able to see us. Web page will only see the proxy that we use it. Proxy servers operate as follows.

Client connecting with a proxy server, and ask for certain services such as file, connection, access the web page or other. Proxy server then evaluates the service request in accordance with its filter rules.

For example, proxy servers can filter traffic by IP address or protocol. If the request is validated by the filter, then the proxy will provide what is requested by connecting to the server the requested and requesting service from the server to his client.

Proxy servers can be used for various purposes including:

* To hide a specific server from the public for security
* To speed up access to the necessary resources
* To open the blocked sites in places such as schools, offices, and so forth.
* To pass security control / parental
* To protect your identity when you're online

Proxy servers that continue without modification request and the answer is usually called a gateway or tunneling proxy. A proxy server can be placed on client computers, or at several locations between the client and the target servers.

Reverse proxy is a proxy that is used as a front-end, with a view to controlling and protecting access to a server or a private network. Usually the reverse proxy to do things like load-balancing, authentication, decryption, or caching.

login multiple accounts in single browser

If you have multiple accounts from services like Gmail or Twitter and you are using Firefox, you can only login using a username just in the same time. Multifox is a Firefox extension that allows Firefox to connect to a website using a different username. So if you have multiple Gmail accounts, you can open all your Gmail account simultaneously. Each window Firefox will be able to access any account without disturbing each other.

Here are some features of Multifox:

* Log will be stored in the same manner as ordinary window, even when you close the window or exit from Firefox.
* Profile and identity of each window is stored and can be used when Firefox is reopened.
* A new window that opens will have the same profile as the identity of their original window is opened.
* Multifox ranging from 2, because 1 is considered as a normal Firefox profile identity.

If you think this extension can help you, then you should immediately get it.

Download AVG Antivirus Free Edition 2011 (Offline Installer)

AVG Antivirus is one of the free antivirus which are quite popular and claimed to have been used by more than 110 million users around the world. AVG recently released a new antivirus updates namely AVG Antivirus Free Edition 2011.

AVG Anti-Virus Free Edition 2011 allows you to:

* Browse and search with confidence once the AVG LinkScanner ® Protection
* Stay protected in the social network Social Network Protection AVG
* Enjoy your PC running faster Intelligent Scanning AVG works while you leave and run in low priority mode when you return
* Stay informed with the latest threat information from the Community Protection Networks and Technology Cloud Guard AVG AVG

If you are interested in using AVG Antivirus Free Edition 2011, you can download via the link below:

Download AVG Anti-Virus Free 2011 32-Bit (135 MB) here

Download AVG Anti-Virus Free 2011 64-Bit (153 MB) here

ImTranslator, Firefox Addons For Foreign Language Translation

You are often "associated" with the foreign language and need a software to translate foreign languages such as bahasa (English), French, Italian, Spanish, etc. to Indonesian or vice versa, you can try ImTranslator.

ImTranslator to translate in real time more than 40 languages. What is interesting from the firefox addons are able to "read" text or web pages you choose. Requirement is already installed on your computer equipped with sound cards and speakers. So, with this ImTranslator You can learn a foreign language as well as how to pronunciation.

ImTranslator You can use this as an alternative to this bookmarklet as a software translator.

Download: https://addons.mozilla.org/en-US/firefox/addon/2257 /

Winstep Nexus, Docking System for Windows

Computer users who use many applications at work often face difficulties, because to run an application and switch from one application to another is tedious. To simplify things, they could use additional interface Dock. Docking is an additional interface that provides an easy way to run and switch between multiple applications with ease.

Winstep Nexus is an excellent docking system, but currently only available for Windows operating systems only. Nexus is the Dock which makes working with multiple applications becomes very easy, and even feel more comfortable. We can access the applications, folders, and documents that often we use them with just a click away. Nexus is available in two versions, namely Winstep Nexus (free) and Nexus Ultimate.

Here are some features of Winstep Nexus:

* Displays a list of applications currently in use in the Dock that can be arranged with the grouping, filtering, and icon customization.
* Display system tray icon in the Dock as an individual or group.
* Securities vague and interesting color effects on the background of the Dock.
* Monitor active connections and bandwidth usage by the Net Meter module
* Some mouse over effects, such as zoom, swing, bounce, and so forth.

There are still many features of Winstep Nexus that has not been mentioned above. To learn more, would be better if you immediately try it out. You can download Winstep Nexus on his official website http://www.winstep.net/

Service-Based TCP / IP

The following services are provided by the Internet based on TCP / IP: 

1. WWW (World Wide Web) This service is a service that we often use. WWW Service uses a protocol called HTTP protocol (HyperText Transfer Protocol). WWW is part of the Internet is experiencing rapid growth today, which consists of client computers (users) and servers that store various data or document that is multimedia.
2.   File Transfer (Shipping File) FTP this allows us to send or receive files to or from a network computer. Therefore, data security issues, FTP often requires a specific username and password, although many can also FTP server through anonymous (normal user and no password, password request can be filled with email addresses).

3.   Remote Login (Telnet) Telnet allows a computer user can log into a computer on the network. When we do telnet, indirectly we have become a legitimate user of that computer.

4.   Electronic Mail (email) service used to send and receive email. Used for mail delivery protocol SMTP (Simple Mail Transfer Protocol) and for reading e-mail use POP3 (Post Office Protocol 3).

5.   NFS (Network File System) An access service remote files that allow clients to access files on remote network.

6.   Name Server List the name of the address used on the internet to explain the original host internet address (the IP number of machine).

7.  Execution Enables computer users to run a program on another computer.

Running Yahoo Messenger multi account in One PC

So far we are only able to run Yahoo Messenger only one account in one pc, well ... now do not be afraid because our PC, we are also able to run Yahoo Messenger with multi accounts .... Just do not chat with yourself

The trick is as follows:

1. Start the registry editor by clicking Start - Run. Type regedit and press enter.
2. Go to the key HKEY_CURRENT_USER \ Software \ Yahoo \ Pager \ Test.
3. In the right pane, right-click menu and select New - DWORD Value.
4. Type Plural.
5. Click 2x on the Plural and content with value 1 (one).
6. Exit the registry editor.