INFORMATION TECHNOLOGY

Fix Network & Internet Connection Problems in Windows 7

18:14 | Labels: Network

Slow or dropped network connection

This document provides details on how to diagnose and troubleshoot your network connection problems. Complete each of the following steps to resolve issues with slow or dropped wireless network connections in Windows 7.

Test for Internet connection after each step. If the problem is not fixed, continue to the next step.

NOTE: These steps assume that you have previously set up a network and have an existing Internet service provider (ISP). For information on setting up a network, refer to Set up a basic home network.

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Konfigurasi Komputer Pelanggan eSPKB Win Vista dan 7

16:08 | Labels: e-spkb/ep

PROSEDUR KONFIGURASI KOMPUTER PELANGGAN eSPKB

Untuk muat turun panduan diatas,sila klik disini

Untuk Konfigurasi Komputer eSPKB / eTerimaan / Unicenter klik disini

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CARA-CARA CAPAIAN KE SISTEM EPEROLEHAN

13:09 | Labels: e-spkb/ep

Manual ini dikhaskan untuk pembekal Kerajaan dalam memastikan kelancaran dalam
urusan pembelian produk/perkhidmatan yang dilakukan melalui sistem ePerolehan.
Manual ini hanya untuk pembolehan infrastruktur anda dalam mengakses sistem
ePerolehan sahaja Terdapat beberapa langkah yang perlu anda ambil dalam memastikan
komputer anda dapat mengekses sistem ePerolehan.

1. Infrastruktur
2. Client Module & Patch
3. Konfigurasi Internet Explorer
4. Log Masuk Kad Pintar

1 INFRASTRUKTUR
Sila pastikan anda mempunyai kelengkapan infrastruktur yang mencukupi untuk proses
capaian ke sistem ePerolehan. Senarai infrastruktur yang lengkap adalah seperti berikut:
a) Komputer
b) Talian Internet (Tmnet, Streamyx, ISDN…)
c) Pembaca Kad Pintar
Sila anda pastikan talian Internet dan Pembaca Kad Pintar telah disambungkan ke
komputer anda dan boleh digunakan sebelum anda ke proses seterusnya. Jika anda
mempunyai masalah dalam ‘installation’ pembaca kad pintar, sila dapatkan bantuan
daripada pihak yang mahir dalam pengendalian komputer. **Sistem operasi Microsoft
Windows XP adalah sistem operasi yang paling sesuai untuk setiap komputer yang
digunakan untuk sistem ePerolehan kerana mempunyai versi terbaru untuk Internet
Explorer dan mudah digunakan.

2CLIENT MODULE & PATCH
Client module & patch adalah satu sistem ‘software’ yang diperlukan dan sebahagian
daripada proses pembolehan (capaian) akses ke sistem ePerolehan. Tanpa ‘software’ ini
anda tidak akan dapat mengakses sistem ePerolehan (Log Masuk Kad Pintar). Untuk
mendapatkan ‘software’ ini, anda dikehendaki melayari laman web ePerolehan iaitu :
Klik untuk muat turun

Untuk muat turun manual penggunaan klik disini

Untuk maklumat lanjut sila layari laman web rasmi perolehan kerajaan di
http://home.eperolehan.com.my/v2/

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Virus .exe dan new folder.exe

12:44 | Labels: Masalah komputer

Lama aku tidak jumpa virus jenis .exe selepas beberapa tahun menyerang sistem komputer suatu ketika dulu.Baru-baru ni,repair satu netbook sebab sistem slow.Bila aku cek balik,rupa-rupanya kena serangan '.exe' .Virus komputer adalah sebuah program kecil yang boleh mengembangkan dirinya sendiri dalam media penyimpanan suatu komputer. Formalnya adalah sebagai berikut :
“A program that can infect other programs by modifying them to include a slighty altered copy of itself. A virus can spread throughout a computer sistem or network using the authorization of every user using it to infect their programs. Every programs that gets infected can also act as a virus that infection grows (Fred Cohen).

Sebagai contoh,virus .exe ataupun mewujudkan dirinya sebagai new folder.exe dimana bila di-klik semakin merebak ia ke dalam folder yang lain.Akibatnya sistem komputer semakin 'slow'.

Kesan daripada jangkitan virus ini adalah seperti:

Disabling Task Manager
Disabling Registry Editor
Creates a startup entry to start upon system start
Creates its own .exe files in Shared Documents folder which appear like ordinary folders.
Disables Folder Options

Tidak semua anti virus mampu untuk membuang virus ini sepenuhnya.Namun ada beberapa kaedah untuk menyelesaikannya seperti penggunaan anti virus kaspersky ataupun avira premium (my research).Selain itu boleh juga menggunakan kaedah secara manual.Sebagai contoh,pergi ke menu search (untuk pengguna win xp sahaja) dan taip '.exe'.Pastikan anda memilih 'search all file and folder'.

Sesudah proses pencarian,delete semua file yang keluar dalam bentuk folder.

-contoh folder-

Kalau agak malas nak buat manual,download software ni

Smart Virus Remover (889.9 KiB, 747,641 hits)

---> lain orang, lain caranya
dan
lain virus, lain pencegahnya <---

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How to setup network (lan) between XP,Vista and 7 Windows PCs

20:21 | Labels: Network

Vista and win7 is Microsoft’s new operating system and it provides different network and security method than Windows XP, to its user. So in order to create network between Vista,7 and XP, we have to enable few network related features on Windows Vista and 7.

First of all we have to turn on “Network Discovery” service; this service allows us to see other network computers and devices from our computer and allows people on other network computers to see our computer. We can also access shared files and devices on other computers and other people can access shared files devices on our computer.

Next we are going to turn on “File Sharing” option. As name suggests it allows us to share folders on LAN. If you turn on this option, then you are also turning on the “Public folder sharing”. Public folder is the default share folder in Windows Vista,7 like “Shared Documents” in Windows XP.

To turn on these features right click on Network and select properties. This will open “Network and Sharing Center” and do as marked in the "Vista Network Sharing Center" images below.

Vista,7 Network Sharing Center (Click to Enlarge)

Go to Network Properties to open this window.

Now we will assign IP address to the Vista PC. In Vista we have two types of IP address, IPv4, IPv6. Windows XP also has IPv6 but you have to install it manually. We will use here IPv4 to setup networking between Windows XP and Windows Vista.
Networking with Vista is cakewalk; I assume that Windows XP as properly configured PC and assigned IP “192.168.0.1”, so we will assign IP address to Windows Vista,7.
Now go to Network Properties of Windows Vista PC; this will open a window “Network and Sharing Center”.

Manage network connections

Now on left pane you will see some clickable links under Tasks Menu, click on “Manage network connection” link and It will open “Network Connections”. Here you can see you LAN card “Local Area Connection”. If you cannot see anything here then check your device manager or post comment here, I’ll try to solve that.

LAN adapter

Now it’s time to assign IP address to this LAN adapter, right click on it, select properties. These will pop-up Local Area Connection properties; select “Internet Protocol Version 4” and click properties.

LAN adapter properties

Type “162.168.0.2” in the IP address box and click “Subnet mask” box, this will automatically put the subnet mask address. Click ok and you are done.

IPv4 (TCP/IP) properties

But before you access lets ping XP PC from Vista PC to confirm connectivity. On Vista PC press windows key + R then type “ping 192.168.0.1” without quote and hit Enter key. You should see something like this.

Ping result

You will get something similar response if your network is connected.

Check Firewall Settings

Apart from this you need to check that whether Windows Vista Firewall has created exception for file sharing or not. In my case firewall was blocking the file sharing option and I created a firewall exception in this way.
On Windows Vista,7 PC, go to Control Panel then double click on Windows Firewall. On left pane click on “Allow a program through Windows Firewall”, a “Windows Firewall Setting” window should pop-up. In the “Exception” tab tick “File and Printer Sharing” checkbox and click ok.

(sumber daripada http://rajkishor09.hubpages.com)

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Files Hidden by Virus. How to Unhide Them?

08:47 | Labels: Masalah komputer

The Solution

1. Insert the thumb drive to an empty USB slot. Take note the drive letter. For an example, F:.

2. Press Windows + R, and type “cmd“. Ok.

3. Enter this command,

attrib -s -h -r g:/*.* /s /d

4. Press Enter and wait for the command to execute.

5. Open the thumb drive and you should see the files that were hidden by the virus.

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Hack Computers Inside LAN Network

11:54 | Labels: Network

Today,I will write about hacking computer inside the LAN network.

This technique will be taking advantage of Port 139.

Most of the time,Port 139 will be opened.

First of all,I will do a port scanning at the target computer which is 192.168.40.128.

This computer is inside my LAN network.

I will scan it using Nmap.

I get the result and it shows Port 139 is opened up for me.

Now you will need both of these tools:
** USER2SID & SID2USER
** NetBios Auditing Tool

You can get both of them on the Internet.

After you get both of them,put them in the C:\ directory.

You now need to create a null session to the target computer.

Now open the Command Prompt and browse to the USER2SID & SID2USER folder.There will be 2 tools inside it,one will be USER2SID and another one will be SID2USER.

We will first using USER2SID to get the ID.

We will test against the Guest account because Guest account is a built in account.

After we get the ID,we need to do some modification on the ID.

We take the ID we get from the guest account and modified it become
"5 21 861567501 1383384898 839522115 500".

Please leave out the S-1-,leave out all the - too.

Now you will see that you get the username of the Administrator account.

In this case,the Administrator account is Administrator.

Create a text file called user.txt and the content will be the username of the Admin account.

Prepare yourself a good wordlist.

Now put both of them in the same directory with the NetBios Auditing Tool.

Now we are going to crack the Admin account for the password in order to access to the target computer.

Browse to the NetBios Auditing Tool directory.

Press on enter and the tool will run through the passlist.

In this case,I have get the password.

In order to proof that I can get access to the target computer using this password.

After you press enter,it will prompt you for the username and password.

Therefore,just input them inside the prompt and continue.

Target C drive will be on your screen.

In order to prevent from this attack,close down port that you do not want to use such as Port 135,Port 136,Port 137,Port 138 and Port 139.

The download link of the tools will be:
Download Tools.rar

(sumber daripada hackguide4u)