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VNC stands for Virtual Network Computing. It is, in essence, a remote display system which allows you to view a computing desktop’ environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures.


Vinagre Remote Desktop Viewer

The Vinagre application is a Remote Desktop Viewer for GNOME desktop that uses Virtual Network Computing(VNC) system to remotely control another computer. It was writter by John Wendell, this program is distributed under the terms of the GNU General Public License as published by the Free Software Foundation.

Vinagre provides the following features:

• Connect to several machines at the same time
• Store recenly connections and allows to bookmark them
• Browse local network for VNC Servers

To find more information about it please visit the http://www.gnome.org/projects/vinagre

Remote Desktop With Windows XP Professional

Microsoft Remote Desktop is a feature that comes free with Windows XP Professional. It allows you to control a computer remotely either through a LAN or using the internet from virtually any computer, Pocket PC, or Smartphone. It can be used for both support task as well as sharing of programs/resources. Microsoft Remote Desktop the quite easy to setup – and is well integrated into the operating system.
 
With Remote Desktop, you can leave your computer at the office without losing access to your files, applications, and e-mail. Your sales force will be able to access the latest pricing sheet from on the road by using Remote Desktop in Windows XP Professional.

Connect your remote computer to the host computer

To connect your home computer, which is the client (or remote) computer to your work (or host) computer, follow these steps:

1. On your home computer, click Start, point to All Programs, and then point to Accessories.
2. In the Accessories menu, point to Communications, and then click Remote Desktop Connection.
3. In the Computer box, type the computer name of your host computer, which you wrote down earlier.

For more informations about activating host and client, please visit : http://www.microsoft.com/windowsxp/using/mobility/getstarted/remoteintro.mspx

further reading : http://www.microsoft.com/windowsxp/using/mobility/default.mspx

Terminal Server Client (tsclient) 

Terminal Server Client [tsclient] is a GTK2 frontend for rdesktop and other remote desktop tools. tsclient is a GNOME program for remotely accessing Microsoft Windows NT/2000 Terminal Services and XP Remote Desktop Sharing as implemented by the Remote Desktop Protocol (RDP). Using the rdesktop program as a backend, tsclient allows users to access and view their desktops as stored on remote Windows NT/2000/XP servers.

Some of tsclient’s features include:

• A GNOME panel applet to quickly launch saved RDP files
•  Support for RDPv5 and rdesktop-1.3 arguments
•  Reading .rdp files in the MS Unicode format
•  Writing .rdp files in ASCII (for compatibility with the MS client)
•  A “RDP picker” which lists .rdp files in ~/.tsclient/ and launches rdesktop from the rdp file when selected

tsclient also supports:

•  VNC clients (*vncviewer)
•  Citrix ICA client
•  X via Xnest

TeamViewer
 

TeamViewer establishes connections to any PC or server all around the world within just a few seconds. You can remote control your partner’s PC as if you were sitting right in front of it. With TeamViewer you can establish a connection to any
computer via the Internet in just a few seconds and remotely control this computer just as if you were sitting in front of it  without having to worry about firewalls, IP addresses or NAT.


TeamViewer is available for Windows and Mac OS X and thus also enables cross-platform remote control.

Seringkali kita mendengar tentang orang ramai memperkatakan tentang rangkaian komputer dan kebiasaannya umum bagi masyarakat kita lebih sinonim dengan istilah-istilah teknologi maklumat dalam inggeris seperti networking, lan(Local Area Networking), internet, ip address dan lain-lain istilah yang biasa digunakan. Secara umumnya rata-rata masyarakat kita memahami apa itu rangkaian komputer serta fungsi dan tujuannya, tetapi adakah kita mengetahuai secara asas bagaimana rangkaian komputer itu berfungsi?

Apakah Tujuan Rangkaian Komputer?
Pada dasarnya rangkaian komputer adalah suatu kaedah yang bertujuan untuk menghubungkan 2 buah komputer atau sekumpulan komputer yang berhampiran melalui perkakasan khusus yang dicipta bagi membolehkan komputer-komputer didalam rangkaian tersebut melakukan fungsi-fungsi khusus dan umum seperti berikut:

• berkongsi fail-fail atau folder
• perkongsian perkakasan seperti printer, scanner, dan fax serta modem
• membolehkan sekumpulan komputer untuk melayari internet melalui satu talian
• menghubungkan sekumpulan rangkaian komputer dengan kumpulan rangkaian yang lain
• bermain permainan secara rangkaian atau lebih dikenali sebagai LAN/Network Games

Bagaimanakah Rangkaian Komputer Berfungsi?
Kebiasaannya LAN(Local Area Network) dibina dengan menggunakan perkakasan mudah dan murah seperti Ethernet Cable, Network Card/Adapter, dan Hub/Switch, Modem dan Router pula diperlukan untuk tujuan membolehkan rangkaian komputer melayari internet. Manakala untuk Rangkaian Tanpa Wayar atau Wireless LAN memerlukan perkakasan yang lebih canggih tetapi mempunyai fungsi dan kebolehan yang hampir sama dengan perkakasan rangkaian konvensional.

Selain daripada pemilihan dan penggunaan perkakasan rangkaian, perisian rangkaian sistem pengoperasian juga diperlukan bagi tujuan konfigurasi ip address(Internet Protocol Address) sesebuah komputer bagi membolehkan sesebuah komputer tersebut memasuki rangkaian dan seterusnya berhubung dengan komputer lain atau lain-lain perkakasan dan perisian.

Apakah TCP/IP?
TCP/IP(Transmission Control Protocol dan Internet Protocol) adalah set komunikasi-komunikasi protokol yang digunakan untuk internet dan juga rangkaian-rangkaian lain. Kedua-dua protokol ini juga dikenali sebagai Internet Protocols Suite yang dilihat sebagai satu set layer. Setiap layer menyelesaikan satu set permasaalahan melibatkan transmisi data dan menyediakan perkhidmatan yang ditakrifkan dengan baik kepada layer protokol atasan berasaskan kepada penggunaan perkhidmatan dari beberapa layer yang rendah. Secara logiknya layer yan diatas lebih menghampiri kepada pengguna untuk menangani data-data yang bersifat abstrak, ianya juga bergantung kepada layer protokol bawahan untuk menterjemah data kedalam bentuk-bentuk yang dapat dipindahkan secara fizikal.