______HACKING INSPIRATION______

computer worm is one of the "programs" that can be said to be dangerous for the user and the computer itself. on this opportunity for colleagues who come from Indonesia, computer worms can learn more deeply by downloading e-book publications from jasakom. for its link can be download here. thanks to deden who've given a download link to me so I can share with other friends

Java is one of many programming languages used by software developers. Consists of Java J2SE, J2ME and so on, besides java programming is also one of the compulsory courses taught at many universities to students. Therefore, for those interested to learn more about what is java programming can be downloaded at the link below. e-book is also very useful for students in universities who want to learn more in java programming

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Worldwide Interoperability for Microwave Access (WiMAX) is the industry standard in charge menginterkoneksikan various technical standards that are global as one. WiMAX and WiFi are distinguished on the basis of technical standards to join in it. WiFi
IEEE 802.11 standard combine with ETSI HiperLAN, which is appropriate technical standards for WLAN, and WiMAX is a merger between the IEEE 802.16 standard by ETSI HiperMAN. IEEE output standard used widely in Europe and surrounding areas. To be able to make this technology is used globally, it is created WiMAX. Both these standards are held together with a technical standard specification very ocok to provide broadband connection through the media type wireless or broadband wireless access (BWA). In the future, all things related to BWA technology is likely to be WiMAX certification. WiMAX standards established by industry combinations wireless devices and computer chips all over the world. These big companies to join in a working forum to formulate a standard interconnection between BWA technologies in their products. WiMAX can deliver the data 7 times faster than Wi-Fi. WiMAX technology was claimed to have extraordinary abilities and more sophisticated than a wireless network system that is now. Technology that can unify a number of hotspot areas in a single area. In fact, Bill Gates, founder of Microsoft is optimistic that WiMAX is a dark horse who could speak a lot within the next three years.

Indeed, many business people believe WiMAX technology will be global. Whereas the development of Wi-Fi only takes 10 years. This technology is actually a further development of the concept of Wi-Fi. This technology already makes it easy for many people, but has a limited capacity constraints and scope. While many large companies in the world need access to a wireless network that has large data capacity, low cost and can be accessed from any place. Wi-Fi technology has a limited range, the most far approximately 100 meters. Compare with WiMAX has a range radius of approximately 7 to 10 km. No one projected as if the WiMAX wireless networking technology for urban areas. WiMAX wherever we go in the city, internet access can be done at no cost is too expensive. To find the information did not need to go to the office or internet cafes, just sitting in the car while waiting for traffic jams, then open the notebook. As for Wi-Fi was so out of the hotspot, a direct data connection died.

WiMAX has the ability to deliver data speeds up to 75 megabits per second (Mbps), while the Wi-Fi is only 11 Mbps. Another advantage is playing at WiMAX frequencies low enough and wide, ie from 2 to 6 gigahertz (GHz). While Wi-Fi set in the protocol at 2.4 GHz 802.11b and 802.11a protocols at 5 GHz. It is not surprising that the presence of WiMAX directly received from various mobile phone companies of the world. When development takes annual WiFi, WiMAX to be so popular it took 18 months. WiMAX 802.16 protocol code has been supported by Nokia, Siemens and Alcatel. In recent years the rising popularity of WiMAX, the latest data from www.wimaxforum.org site recorded no fewer than 100 companies in the world who joined the WiMAX Forum include communications company British Telecom and Broadband UK (United Kingdom), Iberbanda (Spain), PCCW (China ) and Reliance Inforcomm (India).

WiMAX technology can be a big leap for the world's communications companies, particularly for countries that are developing in Asia. Country that still rely on cable networks. With this technology leap to broadband networks or broadband could be expedited. The reason this makes communications company China and India were interested in joining. To get WiMAX services, requires a special antenna that can be operated by 60 companies with a connection each approximately 1 Mbps.

There are several advantages to the WiMAX, if dibandiungkan with WiFi are as follows:
1. Mikrolektronik producers will get a new land to be done, by making chips more general that can be used by many wireless device manufacturers to make his BWA. The wireless device manufacturers do not need to develop a solution end-to-end for users, because it is a clear standard.
2. Telecommunications operators can save investment tool because WIMAX ability to serve customers with a wider area and with higher compatibility.
3. End users will have little choice in the surf. WiMAX is one technology that can help us to connect to the Internet easily and quality.
4. Has many features that had not been there in WiFi technology with IEEE 802.11 standards. IEEE 802.16 standards combined with the ETSI HiperMAN, it can serve the market more widely.
5. In terms of its coverage to reach just 50 miles up, WiMAX has given a very large contribution to the existence of wirelass MAN. The ability to deliver data with a high transfer rate over long distances and will close all broadband gap can not be reached by cable technologies and digital subscriber line (DSL).
6. Can serve the subscriber, whether they be in a position line of sight (LOS) and that allows for no line of sight (NLOS).

Close-circuit television, or what we now know as CCTV, is the use of video cameras to transmit a signal to a specific place on a limited monitoring device. More functions to monitor places like banks, casinos, airports, military installations, luxurious shopping malls, and centers the other crowd. Initially, CCTV systems designed to oversee the launch of a rocket. Results recording functions to detect errors early on. Rocket launch bigger so even include CCTV images captured can be transmitted back to Earth via a radio link.
In 1942, CCTV systems were first produced by Siemens AG in Peenemunde, Germany to observe the launch of V-2 rocket, designed Walter Bruch. CCTV technology functions and then extended to prevent acts of burglary and theft at banks and luxury shops. England became the most dramatic country in the use of CCTV. With increasing security reasons these countries impose more camera to one of its citizens, compared with developed countries another. In Indonesia, CCTV crucial role in tracking the identity of suicide bombers on bombing in Mega Kuningan. Now, technology Digital Video Recorders (DVRs) can be recorded on CCTV for many years. Plus extra features (such as motion-detection and email alerts).
Advantages and Benefits Between Other CCTV:
- CCTV can be accessed by multiple users simultaneously at the same time via LAN network
- CCTV can be monitored remotely using only a regular phone line, without any internet connection
- CCTV can be accessed from anywhere with no distance limitations, from out of town or from abroad using the internet access
- Can be monitored using a PDA, laptop or PC
- Protected password protection so that no right can not access
- No need to use a lot of screens! 1 Self monitors to see up to 16 points at the same cctv camera
- CCTV can function as an alarm that will automatically contact tel no pre-determined if there are things that are not desired.
- Price is more affordable and economical.

Installing a VPN Server

OS Windows Server 2003 Server and Client OS Windows XP)

Server Setup:
1. Configuring the NIC through a static IP address, internal IP berup one of the LAN, the other public IP berup. To be safe, you plug a network firewall to ensure your LAN secure against the possibility of access from the outside.
2. Click Start - Programs - Administrative Tools - Routing and Remote Access. On the left, there is a panel with the server status icons.
3. Right-click the server icon and from the popup menu that appears select "Configure and Enable Routing and Remote Access". This wizard will display the Routing and Remote Access. Click Next, until there is a choice pengkonfigurasian type routing.
4. Select "Virtual Private Network (VPN) server, and click Next.
5. In the Remote Client Protocol option, select 'Yes, all required protocols are on the list', then Next. Default setting is TCP / IP.
6. Select the network card connected to a public network, and then click Next.
7. Click the 'Automatic', if your network has a DHCP server and provide. If not, click the option 'From a specified range of address', and give range for the client's IP and click Next.
8. Next to configure the VPN setup authentication mode, click 'No, I dont want to setup this server to use RADIUS now', and click Next.
9. Click Finish to end setup Routing and Remote Access.
The next stage is to apply the settings to a user policy so that remote users can dial-in.
Policy in Server Setup (working for a remote user can dial-in):
1. Click Start - Programs - Administrative Tools - Remote Access Policies
2. From User Management Console, select the user and set the Dial-In Access to the 'Allow Access'
3. In the right pane, right-click on the option 'Allow access if dial-in permission enabled' and select propertiesnya.
4. Click the 'Grant Remote Access Permission', then click 'Ok' and close the Routing and Remote Access MMC.
Giving permission for remote users to the VPN server configuration steps include:
1. Click Start - Programs - Administrative Tools - Active Directory Users and Computer
2. Click 2x on the user that we will give permission, and the property page click the 'Dial-In' and select the 'Allow Access' Access permissions of the option Dial-In or (VPN).
3. Click 'Ok' and close the Active Directory Users and Computer MMC.
Finish for the steps setup a VPN in Windows 2003 Server. And below is the setup steps for diclientnya, in this case using the Windows XP operating system.

Client Setup:

1. Click Start - Programs - Accessories - Communication.
2. Click on 'New Connection Wizard'
3. Select 'Connect to the network to my workplace' and click 'Next'.
4. Click on 'Virtual Private Network Connection' and click 'Next'.
5. Give it a name in the connection, such as "Connection to Office 'and click' Next '
6. Give IP address or DNS name for the VPN server and click 'Next'.
7. Click Finish button.