LAN (Local Area Network)

Selasa, 31 Juli 2012

Partition Format USB

Partition Format USB- 1. First make sure you have a properly formatted USB disk or flash media. It must have a MBR and an active partition set. a) USB flash media- format it with RMPrepUSB selecting "Boot as HDD" and "XP bootable" options. Note that it will DELETE all partitions. NTFS is reported faster on some systems, your USB stick parameters are also factor. Whereas NTFS generally is not recommended for USB flash media, if you are not planning excessive usage, but rather occasional installs from it, then it should be safe to use it as long as you can boot from it.There is another way to format USB flash media- to use filter driver, such as Hitachi microdrive filter driver or dummydisk.sys (included, look in FILES\MULTIpartitionUSBstick folder). Using such driver will 'make' your stick to appear to Windows as fixed disk. In this case, when formatting Windows will write MBR on in with partition information. You may now use Disk management console, or third party programs to make multiple partitions and format them as you desire.NTFS performs way faster on some systems, or with some USB sticks. However, keep in mind that depending on usage and USB stick quality, it may "wear it out" quicker. !!!Make sure you set an active partition, either from Disk management, or from your favourite external program if you don't have such!!! !!!Use primary partitions when placing Windows based sources!!! !!!Usew first partition when copying Windows XP/2003/2000 Setup!!! b) USB hard disk- format it from within Windows and make sure you set active partition!!! In both cases USB boot is not guaranteed! That depends on your BIOS/motherboard, how disk is formatted and what file system etc.In general FAT16 is the best bet for compatibility, next is FAT32, then NTFS. In some cases different format tools may set improper geometry.

2. Select your sources a) Windows- select the folder, which contains I386/AMD64 folders. Do NOT select folder I386 itself! !!!If you used Nlite to slim it down, option "Operating System Options-->Manual Install and Upgrade for removal" must NOT be selected. This is crucial part.!!! Optionally: b) BartPE/WinBuilder/UBCD4Win/WinFLPC- select the folder, which contains I386 folder. !!!In case of WinFLPC keep in mind that BOOT.INI on target disk wll be set incorrectly!!! In order to start it for a first time, either edit in BOOT.INI disk(z) to disk(z-1) from BartPE for example, or add this to menu.lst on the active partition of the USB disk #### title Start WinFLPC map (hd1) (hd0) map --hook rootnoverify (hd0,0) chainloader /ntldr ### Above example assumes WinFLPC is on first partition of your first internal disk. Ammend accordingly. Once in WinFLPC, edit BOOT.INI on the internal disk as was mentioned above: multi(0)disk(0)rdisk(1)partition(1)\WINDOWS="Microsoft Windows FPLC" /FASTDETECT to multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows FPLC" /FASTDETECT c) Vista / Windows 7 setup- select the folder with BOOT and SOURCES folders. d) PartedMagic- where ISO file pmagic-3.X.iso is. You need to extract pmagic-grub4dos-3.X.iso.zip somewhere and point to its location. To get PartedMagic: http://partedmagic.com/ e) SysLinux- select your Linux distro, which boots off SysLinux. All files/folders will be copied. A file(syslin.dat), containing Syslinux bootsector will be made, and an entry in the boot menu (menu.lst), pointing to that file will be made. In case you do not select anything only syslin.dat and ldlinux.sys will be copied, plus entry in menu.lst. !!! Make sure you have not already added another source, which contains the same folders in root as the ones from Vista, UBCD4Win etc. The program will NOT overwrite files/folders.!!! !!! SysLinux cannot be started from NTFS formatted partition !!!

3. Select target disk from the drop-down menu. Windows Setup can be started only from the first partition on the disk! It does not have to be active. Sorry, this is limitation from Microsoft- in case of removable USB disk, it can't read any partition than first. If your USB disk is not shown then: a) It's not inserted b) It does NOT have an active partition c) It's NOT formatted in FAT16,FAT32 or NTFS d) The program has a bug :) Please report details. Optional settings:

4. Force target disk type(FIXED/REMOVABLE)- usually the program will detect that for you. Force selection only if you are using filter driver as above mentioned dummydisk.sys or Hitachi microdrive filter driver. Or if for some reason the program did not detect it correctly. This is an important part when installing Windows XP/2kX from USB hard disks, or USB flash media, which is seen by Windows as FIXED.

5. Copy Setup boot files only- this option will copy just a minimal set of files (7-12MB), necessary for the first part(Text mode) of the setup. Use to test how your USB disk boots, before copying the main part. !!!DO NOT continue setup, you have to stop when you see the list of hard disks detected!!!

6. Test in QEMU- this will launch QEMU virtual machine, which will use your USB disk as it's internal disk. You may use that as a basic test how the build went. Note that this not guarantees you the same result on real hardware. !!! Currently it's setup to use 256MB RAM when started. Make sure you have at least that amount + some extra RAM available!!! !!!USE AT OWN RISK. DO NOT PERFORM WRITE OPERATIONS WHILE IN QEMU!!!

7. BOOT.INI adjustments a) First field is the directory name, where Windows will be installed to. b) Disk Nr.- on which of your disks Windows will be installed to. For example if you have two internal disks, first is disk 0, second is disk 1. c) Partition number- in which partition of the above selected disk Windows will be installed to. d) Additional entries in BOOT.INI- as above, but creates additional lines in BOOT.INI with the specified data. Use it if you plan to install Windows to disks/partition/directories other than the ones above. This data will be used to create BOOT.INI on the USB disk, with the correct settings. It will be used to start the second part (GUI mode) of setup, AND to start Windows for first time, still using the USB disk as boot device. !!!Make sure the above entries are correct, otherwise you will get error messages like "HAL.DLL/NTOSKRNL.EXE was not found" I need to stress on that- make sure BOOT.INI data is correct, and DO NOT UNPLUG the USB disk until you enter first normal Windows desktop.

8) Press GO button, you have guessed that :) You have 2 steps, in both USB stick is your boot device (change that preferably in BIOS): -Text mode part of setup -GUI mode part of setup !!!If your source is NOT Windows XP2 SP2 or SP3, some of the compressed files in ~LS folder will be deleted during the first part(Text mode). To make another install from this disk you have to copy the missing files, use the program for this purpose and follow the prompts when it finds existing setup folders.!!! and make sure you have a driver for your mass storage (SATA/AHCI/SCSI/RAID) controller in your source.

Senin, 16 Juli 2012

Omni Directional Antenna

WiFi is a revolutionary form of radio frequency reception in It is also known as 802.11 teknoiogi normally used to transport signals from one location to another. Digital transmission is done through radio waves in order to achieve the transfer of data packets in wireless networks. Special antenna, known as WiFi antenna needed for reception of radio waves. In a network card (NIC) and the Wireless access point, there is actually an integrated antenna that can not be viewed or changed by the user. However, there are plenty of other wireless LAN devices that have an antenna that can be changed / replaced, thus providing flexibility to the network by enabling the selection of the antenna that has the desired characteristics.

It is required that the purchase of a WiFi antenna actually serve a specific purpose in a wireless network. Working standard 802.11a, 802.11b and 802.11g, entirely too dependent on signal strength,

Directional Antenna Omni Directional Antenna Vs

There are basically two types of WiFi antennas in terms of use, and differences in system and installation.

Directional antennas: This type of WiFi antennas that can generally be used for point-to-Point or Multi-Point, depending on the configuration of the wireless LAN Wireless. A common directional WiFi antenna is Type: Backfires, Yagi antenna, panel directional and directional dish type.

Omni Directional Antenna Antenna WiFi is this type of antenna used for Point-to-Multi-Point system. This tool can serve as the main antenna to distribute the incoming signal, to other computers or peripherals in their networks. Omni directional antennas help

Omni directional antenna Wifi antenna

radio signals propagate in any direction or in the field

Omni directional antenna Wifi antenna

horizontal, but is very limited in the vertical plane. Type Omni Directional Antennas are generally composed of an antenna Vertical Omni Antenna, Omni Antenna Wibberducks, vertical and Mobile Omni Antenna Omni Antenna Ceiling Dome.

WiFi Antennas How it Works

Access points, which consists of antennas and routers, is the main source of transmission and reception of radio waves. Radio signals transmitted from the WiFi antenna is directly picked up by WiFi receivers. The receiver is equipped with a WiFi card and have the ability to capture the radio waves at certain frequencies. Every time the computer receives a signal in the range of a WiFi network (Wireless Internet Access), WiFi card read signals and create a wireless Internet connection between the user and the network.

One of the most important characteristics of a WiFi antenna is the range. The range of the signal depends on several factors, including the output power of Wireless LAN or router, Wireless LAN signal reception power is delivered, and the obstruction factor, and so on. Therefore, if necessary it should choose a better antenna, which can amplify the signal with maximum power. Efficiency of wireless systems must be upgraded with the help of an external antenna, which can be set to several directions or Omni directional quality for large area coverage and narrow, or the support link point-to-point links between buildings, high-end antennas are very useful. Directional antennas can help to reduce the number of access points required facilities, namunpun not necessarily required.

There are many kinds where people have modified the antenna WiFinya, in order to obtain the expansion of the range. Problems of use and flexibility must also be taken into account when choosing a WiFi antenna for internal or external. A good choice if someone wants a better network connectivity and efficient way to transfer data in a wireless network. Therefore, it is best to first consider before buying a WiFi antenna, whether choosing a WiFi antenna type Directional or Omni Directional Antenna.

Signal Booster

At the last post has been explained in detail about the meaning, benefits and workings of this Wifi signal amplifiers. Recognizing the needs of network users to increase the range of WiFi signal strength, most of the major network component manufacturers have mrluncurkan WiFi WiFi signal booster products to market network devices. There are many brands on the market, bergam yanng features offered, the course is offered every feature that affects the price of this WiFi signal booster. Here I review some of the best products. Make sure that your WiFi signal booster is compatible with the installation of WiFi router used. Price Wifi Signal Booster Signal Booster Hawking HiGain version 2 - HSB2 The tool is designed for WiFi LAN, the price is a signal amplifier according to the website version of the WiFi signal amplifier Amazon price is around $ 49.99 or 450.000an range. To use this tool, Router that is used must have a TNC or SMA connector for the amplifier to work. This tool can improve the signal to 5000 meters. The price of 2 packs WiFi Signal Booster Wireless Antenna / Signal Booster Router WiFi Signal Booster For this price you paid around $ 7.99, or around Rp 70000-80000. Product of Eforcity offers a greater range for your home WiFi network. With an easy plug and play, this product offers great signal strength. Many people have successfully used the WiFi signal booster and improve their WiFi network coverage substantially. With a wide range of WiFi network, you can also try tapping and hacking into your network, but I do not recommend this. But be sure that you have adequate network security by installing encryption to prevent such incidents. You will feel the benefit of tremendous signal amplification by using a WiFi signal booster. Ensure appropriate capability mechanism was whether the WiFi Signal Booster price you want. But the price of WiFi signal amplifier is not a problem compared to the benefits you get

Wireless Router

Wi-Fi or Wireless Fidelity is a network formed from the Wireless Router, which use the same as the LAN cable but this does not require an alias using the signal cable. For its own devices it is definitely hard to build a Wi-Fi networks are. Starting from the configuration of the wireless router, antenna, or a LAN cable connecting the wireless router and antenna. The cost is enough to drain the pouch.
But, do you know now there is the alternative? Fortunately Microsoft have created a system of making Wi-Fi network-based Ad-hoc, if the normally-based infrastructure using the transmitting antenna. To create your own is not too difficult. Armed with a laptop or computer with wirelessnya device, it creates a personal network of Wi-Fi.

WiFi signal amplifier

WiFi signal amplifier is one of the simplest ways to increase the range of your WiFi router. In this article, I will present a review of the WiFi signal amplifier along with an explanation of the working principle and product reviews, price is the best WiFi signal amplifier to the computer and your laptop. All WiFi networks based on the transmission of radio waves. This means that WiFi is also inherit all the flaws of the radio communication with a decrease in signal strength due to distance. When you setup a WiFi network at home, maybe disarari that WiFi has inherent limitations due to the transmission power, the internal transmitter and the physical constraints of the existence of walls and roofs. There are many tips to increase the power of WiFi networks. One way to substantially increase the signal strength of WiFi router is a WiFi signal booster. In this article, I will explain how the WiFi and WiFi signal booster works. I will also provide reviews of some of the best WiFi signal booster on the market. Common way to find a WiFi signal problems suddenly drop, perhaps by changing the location of the WiFi router, or install and buy a more powerful router and choose a faster network standards (for example) or simply choose 802.11n WiFi signal booster offered from the network device stores. This last option is the simplest. Here I will help you to understand about this last option. Is the WiFi signal boosters we can enjoy surfing the internet faster? and How WiFi signal booster work? How it Works WiFi Signal Booster To understand how the WiFi signal booster, you should be familiar with the basics of radio communications. WiFi router is basically a radio that modulate transreceiver digital data over radio wave carrier signal and demodulates digital data transmitted by WiFi devices. Expanded the range of WiFi router to the point where the radio signal strength memadadari to be received and sent back. How does WiFi signal booster?. This tool is able to receive signals transmitted from the WiFi router and retransmits the signal strength is greater than ever. In this way, the amplifier can increase the range of the router by 600% or more. Greater improvement in signal strength means that the need for data transmission is reduced, this will also increase the speed of data transfer on the network. One option is to use a WiFi signal repeaters or range extenders as well as WiFi signal booster antenna. Now let's look at some of the best WiFi signal booster for laptop and desktop computers.

Senin, 30 April 2012

How to Install Network commuting

How to Install Network commuting

1. A router relays the data between your broadband internet connection and your personal computer.

2. A network adapter connects to any computer. It sends data from the computer to the router.

3. Internet Protocol (IP) is the unique identifier of your computer on the Internet. If you have a home network, all your computers share a single IP address.

4. A print server is a dedicated network adapter used to connect the printer to the network. With a print server, several computers can share one printer. Select the type of network

5. Your computer network wirelessly via radio waves using a special type of router called an access point. One access point can serve most average sized homes. Trade name for this technology is Wi-Fi or 802.11b, or a faster cousin, 802.11g. Wi-Fi products must be compatible with each other regardless of brand. Wireless network to work for people who move from room to room with their laptops, or want to use it in cafes, airports and other places with wireless service.

6. Use your home electrical wiring to connect the router to each computer to the powerline network. Trade name for this technology is HomePlug. HomePlug network is more secure than Wi-Fi network and requires no special wiring. However, the latest technology and tend to be the most expensive.

7. Connecting with the most secure home networks, cable networks, sometimes called Ethernet, 10-Base-T or 100-Base-T. If the broadband connection, router and all computers in one room, it's the best choice. But because of special cables, it is also the most flexible if your needs change. Purchase of equipment

8. Get a router. If you are going wireless, this router is called an access point or base station.

9. Get a network adapter for each computer. The simplest universal serial bus plug into a computer (USB) port. If you are using a wired network, your computer may already have an Ethernet network interface card (NIC) in it.

10. Buy extra long Ethernet cable (also known as Category 5 or CAT5 cable) if you are using a wired network.

11. Buy a print server if you want to put the printer on your network. Make sure the connector on the print server and printer match. Set it up

12. Start reading and experimenting. Many products have a surprisingly good manual and online support, and many Web sites are packed with good advice, such as HomeNetHelp.com, PracticallyNetworked.com and compnetworking.about.com. Many manufacturers offer online advice. Good technical support can make a big difference in your installation, especially if you are not

13. Start reading and experimenting. Many products have a surprisingly good manual and online support, and many Web sites are packed with good advice, such as HomeNetHelp.com, PracticaallyNetworked.com and compnetworking.about.com. Many manufacturers offer online advice. Good technical support can make a big difference in your installation, especially if you're not very patient or computer savvy.

14. If you put in a network cable, run the cable to your stereo or home theater. Many new home entertainment components, including digital.

Jumat, 27 April 2012

VPN can work this way

VPN can work this way: • dial-up • part of a router-to-router The VPN tunnel is actually just a logical point-to-point connection with the authentication and encryption. The analogy is that an organization / company has offices in two different buildings. Well, for people / moving information from one office to another, either through: • sidewalk or public street • dig a hole under the ground (analogous to the VPN). Encapsulation process Long package wrapped in a new package. End of the destination address of the tunnel (tunnel endpoints) is placed in the destination address new package, called the encapsulation header. The final goal remains the packet header length is wrapped (encapsulated). On reaching the endpoint, the capsule is opened, and the old package delivered to their final destination. Encapsulation can be performed on different network layers. Layer 2 Tunneling VPNs most commonly used data link layer, for example: Point-to-Point Tunneling Protocol (PPTP) from Microsoft. Another example is the Layer 2 Forwarding (L2F) from Cisco that can work on ATM and Frame Relay networks. L2F is supported by Internetwork Operating System is supported by Cisco routers. The newest is a Layer 2 Tunneling Protocol (L2TP), which combines elements of PPTP and L2F. Layer 3 Tunneling Tunneling can also be made at the IP layer. So the IP packet is wrapped in an IP Security (IPSec) using also IKE (Internet Key Exchange). IPSec can be used in several ways: transport mode: IPSec encryption, but is made by the L2TP tunnel. Note that L2TP can also encapsulate IPX (Internetwork Packet Exchange) and the type of layer 3 packets other. tunneling mode: IPSec encryption and tunneling it.