AMAZON

Tuesday, August 3, 2010

4 Steps to Set Up your home wireless network

4 steps to set up your home wireless network

You can use a wireless network to share Internet access, files, printers, and more. Or you can use it to surf the Web while you're sitting on your couch or in your yard. Plus, it's easier to install than you think.
Note: For Windows Vista users, we recommend installing Windows Vista Service Pack 1 before setting up your wireless network. For Windows XP users, we recommend installing Windows XP Service Pack 3. Although the service pack is not required for wireless networking, it does make things much easier and helps protect you against hackers, worms, and other Internet intruders.

1. Choose your wireless equipment

The first step is to make sure that you have the equipment you need. As you're looking for products in stores or on the Internet, you might notice that you can choose equipment that supports three different wireless networking technologies: 802.11a, 802.11b, and 802.11g. We recommend 802.11g, because it offers excellent performance and is compatible with almost everything.
Shopping list

Broadband Internet connection
Wireless router
A computer with built-in wireless networking support or a wireless network adapter
A wireless router

The router converts the signals coming across your Internet connection into a wireless broadcast, sort of like a cordless phone base station. Be sure to get a wireless router, and not a wireless access point.

A wireless network adapter

Network adapters wirelessly connect your computer to your wireless router. If you have a newer computer you may already have wireless capabilities built in. If this is the case, then you will not need a wireless network adapter. If you need to purchase an adapter for a desktop computer, buy a USB wireless network adapter. If you have a laptop, buy a PC card-based network adapter. Make sure that you have one adapter for every computer on your network.

Note: To make setup easy, choose a network adapter made by the same vendor that made your wireless router. For example, if you find a good price on a Linksys router, choose a Linksys network adapter to go with it. To make shopping even easier, buy a bundle, such as those available from D-Link, Netgear, Linksys, Microsoft, and Buffalo. If you have a desktop computer, make sure that you have an available USB port to plug the wireless network adapter into. If you don't have any open USB ports, buy a hub to add additional ports.
2. Connect your wireless router

Since you'll be temporarily disconnected from the Internet, print these instructions before you go any further.

First, locate your cable modem or DSL modem and unplug it to turn it off.

Next, connect your wireless router to your modem. Your modem should stay connected directly to the Internet. Later, after you've hooked everything up, your computer will wirelessly connect to your router, and the router will send communications through your modem to the Internet.


Next, connect your router to your modem:
Note: The instructions below apply to a Linksys wireless router. The ports on your router may be labeled differently, and the images may look different on your router. Check the documentation that came with your equipment for additional assistance.
  • If you currently have your computer connected directly to your modem: Unplug the network cable from the back of your computer, and plug it into the port labeled Internet, WAN, or WLAN on the back of your router.
  • If you do not currently have a computer connected to the Internet: Plug one end of a network cable (included with your router) into your modem, and plug the other end of the network cable into the Internet, WAN, or WLAN port on your wireless router.
  • If you currently have your computer connected to a router: Unplug the network cable connected to the Internet, WAN, or WLAN port from your current router, and plug this end of the cable into the Internet, WAN, or WLAN port on your wireless router. Then, unplug any other network cables, and plug them into the available ports on your wireless router. You no longer need your original router, because your new wireless router replaces it.






    3. Configure your wireless router

     

    Using the network cable that came with your wireless router, you should temporarily connect your computer to one of the open network ports on your wireless router (any port that isn't labeled Internet, WAN, or WLAN). If you need to, turn your computer on. It should automatically connect to your router.
    Next, open Internet Explorer and type in the address to configure your router.
    You might be prompted for a password. The address and password you use will vary depending on what type of router you have, so refer to the instructions included with your router.
    As a quick reference, this table shows the default addresses, usernames, and passwords for some common router manufacturers.



    Router     Address     Username          Password
    3Com     http://192.168.1.1      adminadmin
    D-Link     http://192.168.0.1                admin 
    Linksys     http://192.168.1.1      adminadmin
    Microsoft Broadband     http://192.168.2.1      adminadmin
    Netgear     http://192.168.0.1      adminpassword





    Internet Explorer will show your router's configuration page. Most of the default settings should be fine, but you should configure three things:
  • Your wireless network name, known as the SSID. This name identifies your network. You should choose something unique that none of your neighbors will be using.
  • Wireless encryption (WEP) or Wi-Fi Protected Access (WPA), which help protect your wireless network. For most routers, you will provide a passphrase that your router uses to generate several keys. Make sure your passphrase is unique and long (you don't need to memorize it).
  • Your administrative password, which controls your wireless network. Just like any other password, it should not be a word that you can find in the dictionary, and it should be a combination of letters, numbers, and symbols. Be sure you can remember this password, because you'll need it if you ever have to change your router's settings.

    The exact steps you follow to configure these settings will vary depending on the type of router you have. After each configuration setting, be sure to click Save Settings, Apply, or OK to save your changes.
    Now, you should disconnect the network cable from your computer.



    4. Connect your computers to the wireless network

  • Windows 7
  • Windows Vista
If your computer does not have wireless network support built in, plug your network adapter into your USB port, and place the antenna on top of your computer (in the case of a desktop computer), or insert the network adapter into an empty PC card slot (in the case of a laptop). Windows will automatically detect the new adapter, and may prompt you to insert the CD that came with your adapter. The on-screen instructions will guide you through the configuration process.
lintasberita

Windows IP Configuration

winipcfg - Windows IP Configuration Tutorial
Introduction to winipcfg
An Article by your Guide Bradley Mitchell

winipcfg is a utility program Microsoft has included with the Windows operating system beginning with Windows 95. With this utility you can quickly find your computer's network addresses and other useful TCP/IP settings. winipcfg also allows you to fix network connection problems in certain situations.
Related Resources
Windows Networking Resources

The winipcfg Interface
To run the utility in Windows, click the Start button, then choose Run from the menu, type winipcfg in the box and click OK.

If the command completes successfully, an IP Configuration window appears as illustrated below

The fields contained in this window are:

* Adapter Name: name of the network card or cards known to Windows. If the computer has more than one network adapter installed, this drop-down field allows the user to view settings for each of the adapters individually. The adapter name is supplied by the manufacturer of the device.
* Adapter Address: the Media Access Control (MAC) address of the network card
* IP Address: the Internet Protocol (IP) address for the computer when using this network card
* Subnet Mask: the IP network mask for the computer when using this network card
* Default Gateway: the gateway address for the computer when using this network card

Clicking the Release or Release All buttons cause the currently selected adapter (or all adapters) to discard their DHCP network settings by notifying the DHCP server, then disconnect from the network.

Clicking the Renew or Renew All buttons cause the currently selected adapter (or all adapters) to request new network settings from the DHCP server.

Note: The information displayed by winipcfg is static, meaning that it does not update automatically as the computer's IP address changes. One must exit and re-run winipcfg to pick up any dynamic address change.

Note: A few versions of Windows, like Windows 2000 Server, do not include winipcfg in their normal installation. On these systems, an alternate command for retrieving IP address information is

ipconfig /all lintasberita

Sunday, August 1, 2010

Tips Bersihkan Virus Pemakan Hardisk

Tips Antivirus
3 Cara Bersihkan Virus 'Pemakan Hardisk'
Wicak Hidayat - detikinet


Screenshot Efek Winsta (vaksincom)

Jakarta - Virus Stuxnet, atau dikenal juga dengan sebutan Winsta, melahap semua lahan kosong di hardisk hingga penuh. Menurut Alfons Tanujaya, analis antivirus dari Vaksincom, kepada detikINET, Jumat (30/7/2010), Indonesia adalah negara dengan korban Stuxnet terbanyak kedua di dunia setelah Iran.

Virus yang awalnya menyebar dari berbagai situs porno, program bajakan dan konten 'abu-abu' lainnya itu cukup meresahkan. Berikut adalah langkah-langkah membasmi virus itu, seperti dituturkan oleh analis antivirus Vaksincom Adi Saputra:

1. Menggunakan Dr Web CureIt

Adi menyarankan korban Winsta alias Stuxnet itu untuk mengunduh piranti lunak penghapus virus. Removal Tools bernama Dr.Web CureIt itu bisa diunduh dari situs FreeDrWeb.com

2. Perbaiki Registri

Kemudian, Adi menyarankan perbaikan pada regitri Windows yang sudah dimodifikasi oleh virus. Caranya, pertama-tama, salin script di bawah ini ke file Wordpad.

[Version]
Signature="$Chicago$"
Provider=Vaksincom Oyee
[DefaultInstall]
AddReg=UnhookRegKey
DelReg=del

[UnhookRegKey]
HKCU, Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced, ShowSuperHidden,0x00010001,1
HKCU, Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced, SuperHidden,0x00010001,1
HKCU, Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced, HideFileExt,0x00010001,0
HKLM, SOFTWARE\CLASSES\batfile\shell\open\command,,,"""%1"" %*"
HKLM, SOFTWARE\CLASSES\comfile\shell\open\command,,,"""%1"" %*"
HKLM, SOFTWARE\CLASSES\exefile\shell\open\command,,,"""%1"" %*"
HKLM, SOFTWARE\CLASSES\piffile\shell\open\command,,,"""%1"" %*"
HKLM, SOFTWARE\CLASSES\regfile\shell\open\command,,,"regedit.exe "%1""
HKLM, SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon, Shell,0, "Explorer.exe"

[del]
HKLM, SYSTEM\CurrentControlSet\Services\MRxCls
HKLM, SYSTEM\CurrentControlSet\Services\MRxNet
HKLM, SYSTEM\ControlSet001\Services\MRxCls
HKLM, SYSTEM\ControlSet002\Services\MRxNet
HKLM, SYSTEM\CurrentControlSet\Services\Enum\Root\LEGACY_MRXClS
HKLM, SYSTEM\CurrentControlSet\Services\Enum\Root\LEGACY_MRXNET
HKLM, SYSTEM\ControlSet001\Services\Enum\Root\LEGACY_MRXClS
HKLM, SYSTEM\ControlSet002\Services\Enum\Root\LEGACY_MRXNET

Kemudian, simpan file dengan nama 'repair.inf'. Gunakan pilihan Save as type menjadi Text Document agar tidak terjadi kesalahan. Lalu, klik kanan file 'repair.inf', pilih 'Install' dan restart komputer.

"Bersihkan temporary file, hal ini agar dapat mencegah sisa trojan yang mencoba aktif kembali. Gunakan tools seperti ATF Cleaner atau gunakan fitur Windows yaitu Disk Clean-Up," tulis Adi.

3. Solusi Darurat

Selain itu, berikut adalah script darurat yang bisa digunakan untuk mencegah agar Winsta tidak kembali menginfeksi. Simpan script berikut dengan nama Winsta.bat (tipe file: Text)

@echo off
del /f c:\windows\system32\winsta.exe
rem rd c:\windows\system32\winsta.exe
md c:\windows\system32\winsta.exe
del /f c:\windows\system32\drivers\mrxnet.sys
rem rd c:\windows\system32\drivers\mrxnet.sys
md c:\windows\system32\drivers\mrxnet.sys
del /f c:\windows\system32\drivers\mrxcls.sys
rem rd c:\windows\system32\drivers\mrxcls.sys
md c:\windows\system32\drivers\mrxcls.sys
attrib +r +h +s c:\windows\system32\winsta.exe
attrib +r +h +s c:\windows\system32\drivers\mrxnet.sys
attrib +r +h +s c:\windows\system32\drivers\mrxnet.sys

Setelah selesai, klik ganda file Winsta.bat yang dihasilkan. Untuk pembersihan yang optimal dan mencegah infeksi ulang, scan kembali menggunakan antivirus yang ter-update dan mengenali virus ini dengan baik. lintasberita