How to disable MAC built in Firewall

Like Windows Operating system MAC systems too have a built in firewall. Some times this firewall block the wireless or Internet connection to your system. In that condition we need to disable MAC built in firewall to allow Internet connection to your computer. The steps to disable built in MAC firewall in your MAC system are:

Steps to disable built in MAC Firewall

To disable MAC firewall follow the steps below.

1. Click on Apple menu

2. Select System Preferences from the Apple menu

3. Click on Sharing from System Preferences

4. Click on Firewall

Under Firewall we can see the status button of the Firewall. If the Firewall is active on your system we can see the button "Stop".
If the Firewall is disabled on your MAC system the button will be "Start".


Click on Stop to disable the built in MAC firewall on your system.

To learn how to configure Linksys Router click on the link below: How to Setup Linksys Wireless Router.



New Topics

How to perform continues Ping operation using MAC system

In this tutorial I am presenting the steps to perform continues Ping operation using a MAC system. The steps are:

1. Double Click on hard disk

2. Click on Applications

You can find Applications on the side bar.

3. Double Click on Utilities

4. Open Network Utility by double click on it

Now the network utilities window will be opened. On the top bar we can see a lot of network options like Tracerout, Netstate,Ping,Whois,Port scan etc


5. Click on Ping from the top bar

Now you can see the Ping operation interface. Now enter the network address which you need to ping.

Select the button send an unlimited number of pings and click on Ping button.


Related Articles

1. How to assign Static IP address in MAC system

2. There is an error connecting to air port network in MAC


New Topics

How to enter DNS settings in Linksys WRT54G Wireless Router

While configuring Linksys WRT54G wireless router, we may need to enter the DNS address provided by the Internet Service Provider (ISP). It should be very important to configure DNS address as the domain name to IP address conversion is done by DNS server.


To see the step by step instructions to configure Linksys WRT54G router click on the link below.

How to Setup Linksys WRT54G wireless router


The steps to assign DNS address in Linksys router is:

Assign or chnage DNS address in Linksys Wireless router

The steps to assign DNS address in Linksys WRT54G router is:

1. Connect Wireless router to your computer using an Ethernet cable

It is very important to note that it is better to connect your computer with wireless router using an Ethernet cable while changing any settings on your wireless router.
Make sure that your computer and the router are powered on.

2. Open browser and type the router IP address


On the address bar of your Internet browser type the router IP address. The default router IP address is 192.168.1.1

3. Enter the user name and password

Enter the user name and password set for your router when it prompts. The default user name and password is:

User Name: --- [No user name]
Password : admin



4. Enter the DNS addresses provided by your ISP

On the basic setup page under Setup you can see two lines for DNS1 and DNS2.
You should enter the DNS entries given by your ISP.

If there any default DNS address present you can remove them and enter the correct address provided by your ISP.

After entering the DNS entries click on Save Settings. To learn how to configure Linksys Router click on the link below: How to Setup Linksys Wireless Router.

Related Topics

1. How to setup Links Range Expander WRE54G

2. How to setup Linksys Wireless Camera WVC54G

3. How to setup Linksys Wireless N Router WRT160N

4. How to setup Wireless Access Point as Access Point Client

New Articles

Redirect namecheap naked domaine to domain with www in blogger

After setting the custom domain name for my blogspot hosted blog, I faced one issue. The issue was :

* I can access my blog with the address www.corenetworkz.com

* I cannot access my blog without www

So there is some kind of redirection issue in either on blogspot side or in Namecheap side. I fixed the issue by reading some of their troubleshooting manuals and going to write the steps to perform a perfect redirection in blogger where domain name is registered with Namecheap.com

Steps to perform perfect redirection in blogger and Namecheap

1. Set custom domain name in blogger

To see the steps to set custom domain in blogger, click on the link below.


Steps to set custom domain in blogger

2. Check the redirect to check box in blogger settings page




3.Login to namecheap account

4. click on My Account

5. Click on Manage domains

6. Click on the domain name which you set for blog

7. Click on URL Forwarding under Host Management




8. Enter the following details

Under IP Address/URL

@ is http://www.your domain.com
www is ghs.google.com


The URL Redirect should be 301 and select CNAME (Alias)



After setting the details click on Save Changes.

Now if you type your blog address without WWW , it will be directed to the blog adress with WWW. So you will not loose your visitors who are not using WWW prefix.


New Articles

How to set up a custom domain name in my blogger

Now a days one of the major hobby of youngsters is blogging. The major platforms used by young bloggers are :

1. Blogspot.com
2. Wordpress.com

So a newbie blogger starts his blog on one of the above give blogger platforms. The reasons are:

1. free blog software ,
2. free hosting
3. a free sub domain name

As long as the blogger is a newbie he is satisfied with the services provided by them. When a newbie blogger starts to convert to professional blogger and try to generate income form his blog, he need more facilities. They are:

1. Unique and non dependable name (custom domain)

2. Hosting place where the blogger has full right

3. Data back-up

4. More promotional chances

The first step to convert your blog to a professional blog is set a custom domain for your blog and enable a permanent redirection (301 redirection) from the current url to new domain name. In this article I am presenting the steps to set custom domain name for blogs hosted in blogger.com(blogspot).

Steps to configure custom domain in blogspot / blogger blogs

The steps to set a custom domain in blogspot based blogs are:

1. Login to your blogger account

2. Click on settings

3. Click on Publishing under the settings



4. Click on custom domain



Now blogger will give you a chance to purchase the available domain name through blogger it self. If you have already a domain name for your blog, you should click on the link

Switch to advanced settings


5. Enter your domain name and click save settings


Now you will get a space to enter your domain name and after the word verification you can click on save settings. Now the custom domain for your blogspot blog is configured and you can access your blogger through the new domain name.

To redirect old url to new custom domain name click on the link below.


How to redirect old blogspot url to new domain name

Benefits of setting custom domain in blogger

1. 301 redirection from old url to new custom domain

The PR and other site value gained by old url will be transfered to the new domain name.

2. Post wise redirection.

Each url in your blog will be redirected to the respective new urls.

3. Domain name is easy to promote than sub domain name.



Related Articles

1. How to optimise blogger template for better Search Engine result

2. How to insert bookmark button after blog post




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Wireless connection - Limited or no connectivity

Yesterday night here was a rain and thunder. In the morning when I start my computer I am not able to go online. There was a message on the wireless connection "Limited or no connectivity" and my computer shows it is not connected to the Wireless Access Point. I fixed the issue and went online just within 5 minutes. Here I am pointing the possible troubleshooting steps we can try in this situation.

Limited or no connectivity - Troubleshooting steps

Step 1: Refresh the network list and try to reconnect

This is the first step I did when I saw the alert limited or no connectivity. I just refresh the wireless network list and when the network came back I click to connect.

Step 2: Delete prefered wireless network list and refresh the network list

The next possible step we can do is clear all previously saved wireless networks from your computer. After removing the saved networks ,click on view available wireless network button to see the currently available wireless networks.


To get more instruction how to perform step 1 and step 2 click on the link below.


How to refresh the network list and delete prefered networks



3. Disable Security softwares on your computer

The next possible step we can do is disable all security softwares with firewall feature running on your computer. Some firewalls can block your wireless connection as they are providing too much security to your computer.

The steps to disable Windows Firewall on your computer

If your computer has any third party security softwares like Norton Internet Security,Mcfee ,ZoneAlarm etc you need to read their manuals or get customer support.

4. Shift to Wireless Zero Configuration

If your computer is using any third party wirelss utilities like Dell wireless utility or Linksys WLAN monitor etc ,you need to disable that program and enable wireless zero configuration to control your wireless networks.


Steps to start Wireless Zero Configuration

5. Adapter side trubleshootings

Here we are assuming that the wireless adapter inserted in your computer may have some issues. To know the steps to troubleshoot your wireless adapter click on the link below.


How to troubleshhot your wireless adapter


6. Wireless router/ Access Point side troubleshootings

Here we are changing the SSID ,wireless security type and the wireless key of the wirless network and try to connect our computer to the new network.



New Topics

Online with USB but cannot with Ethernet/LAN card

Today morning one of my friend called me to consult one technical issue. He is able to access Internet with USB connection between computer and modem but cannot go online with Ethernet connection. He was so surprised by seeing this and I told him to check some simple settings. The issue fixed with in 3 minutes. As in my previous posts I am not going to disclose his actual issue but presenting the step by step instructions to pin point the actual cause of the issue.

Can access Internet from USB port but not from Ethernet Port

Main steps to isolate the issue are:

1. Check the LED of your modem

Check the LED on the modem port as well as computer where the Ethernet cable connects. If the Ethernet cable doesn't connect properly or the cable is broken the light will not come. If the lights are not on we need to make sure that the cable is connected properly. If the issue persists change the ports and the last resort is to change the cable.


2. Check whether static IP is assigned to the Ethernet Port

Some times we may assign static IP address to the Ethernet Port and forget it later. So on the next time when we connect our computer directly to the modem the issue starts. If the static IP assigned to the Ethernet port and the modem IP are not the same one you cannot go online. So to check the IP address of your LAN card is also very important.

How to Track an IP address and Location

3. Power cycle the modem

In this step you need to disconnect power cable from the modem and wait for 1 minute. After one minute connect modem to your computer using Ethernet cable and check for the issue.

How to perform Power Cycle


4. Uninstall LAN card driver and reinstall

Another possibility for this issue is: may be the driver for LAN card(Ethernet) is not installed properly. So you need to uninstall and reinstall it(Most of the time you just need to reboot your computer after uninstall the Ethernet driver to get it back).

5. Disable Firewall and check for the issue

It is advised to disable the firewall protection on your computer and check for the issue.

6. Connect your computer with another modem

To rectify the issue with the LAN port of your computer/LAN port of your modem
either connect a different computer ,or Laptop to the modem ,or connect your computer to another modem.


After this step we can identify in which portion the issue lies. If the issue is with modem port you need to contact your ISP. If your computer LAN port is defective contact your hardware vendor.

Related Topics
1. Reasons for Slower Internet Connection
New Topics

How to install Safari on Ubuntu Linux

We cannot install Safari on Ubuntu as simple as Firefox on it. The reason is till now Safari browser has no linux version. Apple has published Safari for MAC as well as Windows but not yet for Linux. Till now for Linux users the only option to install Safari in our computer by the use of Wine only. You may feel desperate for this suggestion but as long as there is no Safari for Linux, it is the only option. The steps to install Safari on Ubuntu Linux using Wine are:

Install Safari With Wine

1. Make sure that Wine is already installed on your computer. It should be configured for Windows XP version.

2. Download Safari

You can download Safari browser form the link given below.

http://www.apple.com/safari/download/


3. Right click on SafariSetup.exe


Now select the option - Open with "Wine Windows Program Loader" -

Now the installer window will appear. click next to start installation and follow the on screen instructions.

Related Topics

1. How configure broadband in Ubuntu Linux

2. How to configure DSL in Fedora Linux

3. Steps to add Open DNS in Ubuntu Linux

New Topics

Steps to add Open DNS in Ubuntu Linux

Today I faced some DNS issues with my new computer after installing Ubuntu in it. After some basic troubleshooting steps I assigned Open DNS address to my network adapter and the issue is resolved. Open DNS is a smart way to make our browsing fast and reliable. As the name suggests this DNS service is absolutely free and worth a try. Before go to open DNS we need to know a little bit about DNS. As we know DNS is used to convert the domain name of of website to its IP address. For any communication your computer should know the mac address and IP address of the destination (Here web server). MAC address can be obtained from ARP table and if the user type the IP address of the web server computer knows both. If the user type the domain name of the website your computer don't know the IP address of the destination and the communication will not happen. Here the DNS server helps. DNS helps to resolve the domain name to IP convertion issue and send the destination IP address to the computer.


So it is understood that every computer which connects to the Internet should know the DNS server address. There are many DNS servers available including your ISP's DNS server. Here I am presenting the steps to assign Open DNS in Ubuntu linux.


To know the stpes to assign DNS address in Windows computer click on the link below.


How to configure DNS address in Windows computer

Assign Open DNS in Ubuntu

The steps to set open DNS in Ubuntu are:


1. Right click on the network symbol

You can see the network icon on the right hand top of the screen.



2. Click on the Edit Connection

3. Now the active network connection window will be opened.



If your computer is connected with an ethernet cable you will get the standard name eth0.

4. Select the connection and click on Edit button


5. On the Edit window click on IPv4 Settings tab






Now on DNS Server enter the Open DNS addresses.

The Open DNS addresses are :

i. 208.67.222.222
ii. 208.67.220.220


Now click Apply and reboot your computer.


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How to mount a partition in Ubuntu Linux

After installing Linux on our computer to enable the read and write access to a partition , we need to mount the partition. Without mounting the drive we will not be able to access the drive/partition and that portions seems lost. To mount a partition in Ubuntu Linux we can use the simple terminal command:

sudo mount

Example for the usage of mount command is:


siju@ubuntu:~$ sudo mount /dev/sda5


Where /dev/sda5 is the dir structure. You should type the command on the terminal. Terminal is accessable by following:

Applications > Accessories > Terminal

Most of the time to perform mounting the Ubuntu will ask your administrative password to authorise the action. If the mount point doesn't exist (wrong dir) ,we will get an error messqage like below,

----------------------------------------------------------------
[sudo] password for siju:
mount: mount point none does not exist
---------------------------------------------------------------


To know the dir structure on your computer you can use the simple terminal command.


sudo fdisk -l


Eg:
-----------------------------------------------------
siju@ubuntu:~$ sudo fdisk -l
-------------------------------------------------------

We will get the dir structure including the reserved space as shown below.


----------------------------------------------------------------------------------------
Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xe40ae40a

Device Boot Start End Blocks Id System
/dev/sda1 * 1 3283 26370666 83 Linux
/dev/sda2 3284 19457 129917655 5 Extended
/dev/sda5 19093 19457 2931831 82 Linux swap / Solaris
/dev/sda6 3284 6322 24410704+ 83 Linux
/dev/sda7 6323 9361 24410736 83 Linux

Partition table entries are not in disk order
---------------------------------------------------------------------------------------------------

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How to disable Windows Firewall -- Windows XP tips

Firewall is a device or program to control the traffic between public and private networks. The traffic is controlled by enabling or disabling some TCP/IP ports through which traffic is coming. Firewall comes under two categories:

1. Hardware Firewall

2. Software Firewall

It is proven that hardware firewall works faster and efficient than software firewall. But due to the gradual improvements software firewalls perform well now.

Windows Firewall

Windows Firewall is an upgraded form of traditional Internet Connection Firewall introduced by Microsoft. Even though Windows Firewall integrated with Windows OS ,some times it creates some conflicts with other security products as well as wireless systems. It is shown that Windows Firewall some times creates issues in wireless accessing and may block the wireless access from the computer. If you are running any third party security software which includes firewall on your computer it is advised to disable the default Windows Firewall on your computer.

Steps to disable Windows Firewall on your computer


The steps to disable Windows Firewall on your computer are:

1. Click on start

2. Go to Control Panel

3. Click on Security Center

Security center can be accessed by click on the icon shown below.



Now the Windows Security Center window will be opened.

4. Click on Windows Firewall




Now the Windows Firewall control panel will be opened.

5. Turn off Windows Firewall

To turn of Windows Firewall click on the button Off.


Now the Windows Firewall is turned off in your computer.



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BIOS backdoor passwords for Laptops

The Laptop manufactures have set default BIOS backdoor passwords for bypassing the BIOS user configured password. The list of Laptop BIOS backdoor passwords are provided below.

1. VOBIS & IBM ----> merlin

2. Dell ----> Dell

3. Biostar ----> Biostar

4. Compaq ----> Compaq

5. Enox ----> xo11nE

6. Epox ----> central

7. Freetech ----> Posterie

8. IWill ----> iwill

9. Jetway ----> spooml

10. Packard Bell ----> bell9

11. QDI ----> QDI

12. Siemens ----> SKY_FOX


13. TMC ----> BIGO

14. Toshiba ----> Toshiba

Please note that the Laptop manufacturers may update the BIOS backdoor passwords by time to time. If the password is not working you need to contact manufacturer technical support.



To know the normal procedure to break or bypass the BIOS user configured passwords click on the link below.


Steps to reset BIOS passwords

In this link you can find the methods like hardware reset and recovery of BIOS passwords using freeware software.

Related Topics

1. List of AWARD BIOS backdoor passwords

2. List of AMI BIOS backdoor passwords


New Topics

List of AMI BIOS back door passwords

The list of AMI backdoor passwords is :

1. AMI
2. AAAMMMIII
3. BIOS
4. PASSWORD
5. HEWITT RAND
6. AMI?SW
7. AMI_SW
8. LKWPETER
9. A.M.I.
10. CONDO


The other possible AMI BIOS passwords are:

1. LKWPETER

2. lkwpeter

3. BIOSTAR

4. biostar

5. BIOSSTAR

6. biosstar

7. ALFAROME

8. Syxz

9. wodj


PS: Manufacturers update the back door passwords by time to time. To get the latest bios password for the latest BIOS version I recommend you to contact the BIOS manufacturer.

If the back door passwords are not working click the link below to know more tricks to reset BIOS password.


How to reset BIOS password



Related Topics

1. Back door passwords of AWARD BIOS

List of AWARD BIOS back door passwords

There are many ways to bypass the BIOS password if you for get the old password set by you. The easiest , method is using a back door password to get in to the BIOS settings. The back door passwords are set by the BIOS manufacturer for testing and maintenance. The same passwords will work as the original BIOS password which is configured by the user. The most common back door passwords for AWARD BIOS are:


ALFAROME
ALLy
aLLy
aLLY
ALLY
aPAf
_award
AWARD_SW
AWARD?SW
AWARD SW
AWARD PW
AWKWARD
awkward BIOSTAR
CONCAT
CONDO
Condo
d8on
djonet
HLT
J64
J256
J262
j332
j322 KDD
Lkwpeter
LKWPETER
PINT
pint
SER
SKY_FOX
SYXZ
syxz
shift + syxz
TTPTHA
ZAAADA
ZBAAACA
ZJAAADC
01322222
589589
589721
595595
598598

Please note that manufacturer may update the back door passwords. So for different BIOS versions different back door passwords are used. If the passwords provided above are not working I recommend you to contact BIOS manufacturer.


If you are not in a position to contact BIOS manufacturer and want to reset BIOS password click on the link below.

How to reset BIOS passwords


Related Topics

1. Back door passwords of AMI BIOS


New Topics

Forgot BIOS Password - How to reset BIOS password

One of the way to increase the security on our computer is set a password for BIOS. But what to do if we forget the BIOS password ? Is there any way to bypass the BIOS password or reset the old BIOS password ?

There are many ways to reset the BIOS password. They include


1. Using BIOS back door passwords set by the BIOS manufacturer

2. Using BIOS password breakers (Third party Softwares )

3. Hardware reset


Use BIOS backdoor passwords to bypass BIOS password

This is the default password designed by the manufacturer for the testing of BIOS. To get the backdoor BIOS you need to contact respective manufacturer. This password will help you to get in to the BIOS settings page. The list of some popular BIOS backdoor passwords are provided below.

i. AMI BIOS backdoor passwords

To see the list of AMI BIOS backdoor passwords click on the link below.

List of AMI backdoor passwords

ii. AWARD BIOS backdoor passwords

To see the list of AWARD BIOS backdoor passwords click on the link below.

List if AWARD BIOS backdoor password

iii. BIOS backdoor passwords for Laptops

To see the list of BIOS backdoor password for standard Laptops , click on the link below.

List of Laptop BIOS backdoor passwords


Third party softwares to break the BIOS password

There are lot of softwares available to break the BIOS password and gain access to BIOS settings page. The important softwares are

1. !BIOS PC BIOS Security and Maintanance toolkit

2. CmosPwd BIOS password breaker

3. http://webscripts.softpedia.com/script/Development-Scripts-js/Complete-applications/Cmos-Password-Breaker-15153.html

4. http://wareseeker.com/free-cmos-password-breaker/



Hardware Reset to Change BIOS password

The one of the good and dirty way to reset BIOS password is hardware reset. To do this you need to open the Computer cabinet and remove the CMOS battery on the mother board. After removing the battery wait one minute and insert the battery back. The BIOS information is stored in CMOS memory and when the power to CMOS disconnect the stored information will be erased. So nest time when the system boots BIOS will not ask you for password to grant access in to BIOS settings page.


New Topics

Disable/Enable USB Ports from Registry

In this tutorial I am discussing the steps to disable USB Ports from registry. I advice you to take a backup of current registry before starting any registry tweaks.

Steps to disable USB Ports from registry

The steps to disable USB Ports from registry are:

1. Click on start and go to Run

2. Type regedit on Run window and press enter

Now the registry editor will be opened.

3. Navigate to following registry path

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor

4. Click on UsbStor and a list of attributes will be displayed on the right panel.



5. Double click on start and set the hexadecimal value to 4 and click OK.

Now the USB ports on your computer will be disabled.

How to enable USB Ports on your computer

To enable USB Port on your computer follow the steps 1 to 4 and set the hexadecimal value to 3 on start.


To know the tips to disable USB ports from BIOS click on the link below.

Disable USB Port from BIOS



New Topics

Disable USB Ports on your computer from BIOS for other admins

Some times we need to block access to USB ports for other users on your computer. If they too have the admin right it will be a Herculean task to disable USB ports to other users using third party tools. So the only option left is disable the USB ports from BIOS and set a password for BIOS. So other users with admin right cannot enable the USB feature on your computer. OK here I assume they cannot remove and replace the CMOS battery.

Steps to disable USB ports for other users with Admin Right

To disable USB ports for other users with administrative privilege follow the steps below.

1. Reboot your computer

2. Press [F2] or [Del] as told in the mother board manual

3. Enter BIOS by entering BIOS password

4. Select Advanced

5. Select USB Configuration and press enter

6. Select the option to disable USB ports


To enable USB ports on your computer you need to enter BIOS and enable the USB Ports. The steps are the same except the last step. We need to enable the USB ports instead of disable.



New Topics

How to Enable ICS (Internet Connection Sharing) on Windows XP computer

Let us think a situation where we have more than one computer(Say two) and one computer is getting Internet connection. We need to share this Internet Connection with other computer but we don't have a router to do so. In this situation we can use a feature of Windows XP or Vista to share Internet Connection. This feature is called Internet Connection Sharing(ICS).

Requirements of ICS

To enable ICS we need to have,

1. One Windows XP computer with two Network Interface Cards (NIC)
2. Modem
3. Ethernet Cables
4. Switch or hub ( If you need to share Internet among more than two computers)

Steps to enable ICS on your Windows XP computer(Server side)

To enable Internet Connection Sharing on your computer follow the steps below.

1. Click on start and go to Control Panel

2. Double click on Network Connections ( If the control panel is in classic view)

If the control panel is in category view ,double click on Network and Internet Connections. Then double click on Network Connections.

3. Click on the network icon which we need to share.

4. Right click on the network icon and click on properties

5. On the network connection properties window click on advance tab

6. Check the check box " Allow other network users to connect through this computer's Internet connection"

7. Under Internet Connection Firewall, check "Protect my computer and network by limiting or preventing access to this computer from the Internet."

8. Now click on Yes to enable Internet Connection Sharing on this computer.

Now this computer will act as the server on your network. The IP address on the shared NIC will be 192.168.0.1

This will be the ICS server IP address.

Get Internet connection to ICS client

To access Internet connection on the ICS client follow the steps below.

1. Connect the client computer to the shared NIC on the ICS server.

2. Run Network Setup Wizard

* Click on Start and select All Programs

* Click on Accessories and select Communications

* Click on Network Setup Wizard



3. Run the wizard



Click on next and follow the instructions to enable ICS and access Internet on this computer.


The IP address on the ICS client computer might be a class C address (192.168.0.X)

X can be from 2 to 254 and the total number of allowed ICS client computers is 253 on this network. We can enable ICS only one time on a single network. As the ICS is in class C network the subnet mask is 255.255.255.0


New Topics

How to check the Frequency of RAM - RAM Specifications and Tips

The RAM (Random Access Memory) is a volatile memory where the transfer of data between Computer processor and hard disk take place. It is known as volatile memory because the data stored in RAM will be cleared when the power off. One way to increase the functionality of your computer is increasing RAM. There is a limit for adding RAM module on your computer. For a 32 bit processor the maximum allowable RAM is 4 GB.

How to Check the speed/Frequency of RAM on your computer

Usually you will get enough information from the label on the RAM. If you are unable to get information from the label, you can get the details from the BIOS. To log on to BIOS press [F2] or [Del] { Depends on the computer manufacturers the key to enter BIOS may change} while booting your computer. On the main page of BIOS itself you can get the RAM details like the slot where RAM inserted, Size of RAM module, Frequency /Speed of RAM module etc.



So the steps to know the details of RAM from BIOS are:

1. Boot your computer

2. Press [F2] or [Del] as told in the motherboard manual

3. Enter BIOS

4. Get the RAM details from the main page itself




It is always remember that RAM is of many types. They are

1. SD RAM
2. DDR RAM
3. DDR 2 RAM
4. DDR3 RAM

Some motherboards cannot recognize some RAMs. So it is very important to make sure that the RAM you are purchasing is supported by your motherboard.

The Frequency of RAM is also really important. If you are adding the extra RAM module to your computer ,make sure that the new one has the same frequency of the older RAM module.

After all it is important to know the warranty period of RAM. Some vendors offer one year warranty while others offer three year. It is preferable to go for higher warranty period.



Related Articles

1. How to break Windows Vista admin password

2. How to connect two computers using USB cable

New Topics

How to delete saved book marks from google Chrome

In this tutorial I am going write the steps to remove a saved book mark from google Chrome. Before going to that we need to know what is a book mark and what is the use of it. As the name suggest it is an easy way to access our preferred web pages directly from your window without browsing it again. While browsing we may find some interesting pages which we may forget later. So we need to book mark that pages either on our computer or in a public book marking website. Google chrome also have the feature to book mark pages on your computer.


May be we don't need that book mark any more. So we decide to remove the book mark from pur computer. Google Chrome offers that facility. To remove the saved book marks in google Chrome follow the steps below.

1. Open Google Chrome

2. Click on Chrome Settings symbol




Chrome Settings icon is on the right hand top of the Chrome Window. After click on that one drop down menu will come. In this menu click on book mark manager.

You can directly access the same book mark manager by pressing [Ctrl] + [Shift] + [B] keys together. In the book manager window you can see all the saved book marks on Chrome.




To delete on book mark from google Chrome ,select one and press delete button on your keyboard.

Related Articles

1. How to view saved passwords in google Chrome



New Topics

How to view saved user name and passwords from google Chrome

In this tutorial I am going to present the steps to view saved passwords from google Chrome. As like the steps to retrieve the saved passwords from Mozilla Firefox ,the steps to view passwords from google Chrome is also very easy. Before looking in to the steps to see the saved password we need to know how come these passwords saved in google Chrome. If the option to offer save password enabled in google Chrome it will ask you a question "Do you want Chrome to save this password " immediately after you enter the user name and password. The offer will look like below.



If anyone click on the button Save password his user name and password will be stored in google Chrome. So to avoid the saving of our important user name and password in google Chrome we need to click on the button " Never for this site".

Steps to See Saved user name and password from Chrome

To view the saved user name and passwords from Chrome follow the steps below.

1. Open Google Chrome

2. Click on Chrome settings button

It is on the right hand top of the Chrome window and look like as below.




Now you will get a drop down menu. From the menu click on Options. Now you will get a window like this.


To view the saved passwords and user names in google Chrome click on the button Show saved passwords.


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How to Change the Logon background color from registry

In this tutorial I am going to present a simple method to change the back ground color of your Windows log on screen with any color patter you like. We can change the default color patter by editing some registry value. The steps to edit Windows logon color are:

1. Click on start

2. Go to Run and type regedit

After that press OK. Now the registry editor will be opened.

3. Navigate to following registry value

HKEY_USERS\.DEFAULT\Control Panel\Colors

Now you can see a lot of attributes here. Select BackGround and double click on it.

Now you will get an option to change numbers as in the order X X X


Where X can be a number in between 0 and 255. These numbers shows the pixels which determine the color. The basic color code is like:

Red : 255 0 0
Green : 0 255 0
Blue : 0 0 255
Black : 0 0 0
White : 255 255 255



You can get any color by changing the pixel count.


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My Laptop is not getting Wireless and no Internet

Today one of my client called me while I was waiting online for him. What he told me is that he is not able to come online as his laptop is not getting Internet. He was sitting on a Hotspot (Wi-Fi) but his Laptop failed to get wireless signals and cannot connect to any. So just like a call center tech guy I started troubleshooting and very soon his Laptop received wireless signal and he came online. Here I am not going to explain the steps performed on his Laptop but I would like to describe the normal troubleshooting steps when you are in a similar situation.

Steps to fix the issue -My Laptop is not getting wireless signals

The basic steps to resolve the issue cannot receive wireless signals on your Laptop ,where you are sure there is wireless signal,are:

1. Wireless Button should be turned on

Make sure that the wireless button on your Laptop should be turned on in-order to receive wireless signals. The wireless button can be present on the top or side panel based on the various models. It can be distinguished with the wireless symbol. For more details I recommend you to refer the user manual of the Laptop.


2. Make sure that Wireless Zero Configuration is started

Wireless Zero Configuration (WZC) is a service which is essential to receive wireless signals on your computer. To know how to check the status of WZC and how to turn on click on the link below.

How to start Wireless Zero Configuration on your computer


If still you are not getting wireless signals on your computer I recommend you to follow the steps provided in the given link.


My computer is not detecting any wireless signals - Part 1

If the issue persists even after performing the steps provided in the above link, you need to disable the Firewall on your Laptop. After disabling the firewall check for the issue. Even if you are not able to detect any wireless signals I suggest you to follow the steps provided in the given link.

I am not getting wireless even after disable the Firewall


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How to disable iPod Service in your Windows Computer

The iPod Service is a third party service which is supplied by apple to run iPod on your Windows computer. The uses of this iPod Service is when you connect an iPod on your computer it will be detected using this service. The description of this service itself is "iPod hardware management services". It can be installed on your computer when you install QuickTime or any other apple product on your computer. If we don't use an iPod it is advisable to disable this service as it consumes a lot of start up time.

Path of iPod Service on Windows Computer is "C:\Program Files\iPod\bin\iPodService.exe". But it is highly recommend that don't uninstall it as it is used for the smooth working of other apple products on our computer.

Steps to disable iPode Service in Windows Computer

The steps to disable iPod Service are:

1. Click on start

2. Go to Control panel and open administrative Tools



3. Click on Services


4. Find iPod Service and right click on it



5. Click on Stop to disable the service in your computer.

Disadvantages of disabling iPod Service on your Windows computer

If we disable this service we may not be able to watch *.mov files or other video on web sites that need QuickTime to run.


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How to view saved passwords from Mozilla Firefox

It is very easy to see the saved passwords in Mozilla Firefox and no need to use any hacking tricks for it. When a newbie Internet user try to log on to any of his account (Orkut,yahoo mail, gmail etc) he may forget to uncheck the option remember my password. One more chance is there, when the remember password option is enabled on the Firefox settings and after log on the user will see a prompt look like below.



Here the newbie user may click on the option Remember as it is the first button shown. So the victims user name and the password will be stored in the Firefox.

Steps to view the saved user names and passwords in Firefox

To see the saved user name and password in Mozilla Firefox follow the steps below.

1. Go to Firefox top menu and click on Tools



2. On the Tools click on Options




Now Firefox options window will be opened. On the Options window we need to click on Security tab.



To see the saved passwords click on the button "Saved Passwords". You may be prompted with one more alert which needs your confirmation. After confirmation you will be able to see the saved user names and passwords.


Precautions to protect our password

The first precaution we need to take is always make sure that our password is not saved in the browser. Take a little bit time to read the alerts comes from the Browser. The last step is always clear browser cache,cookies,passwords etc after the Internet usage. A little bit care can avoid some big disasters.


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Some crazy DNS issue by My ISP

Today I faced an interesting DNS issue with my Internet Service Provider. The issue is very simple I can go online but ping request to open dns server returns request timed out. It is very interesting right?

The complete story is like below. While browsing I suddenly went offline and as usual to check the connectivity I ping to glogal DNS address. I got Request Timed Out message. So desperately I tried other open DNS addresses like 208.67.222.222 and 208.67.220.220 but they too failed to get valid reply. Then I just ping www.google.com and it gave me reply and my browser can go to google.com.

Screen shot of my ping operation is attached below.




After the result I again ping 4.2.2.2 and got Request Timed Out message. Mean time I can browse to any website without any issue. I called the ISP and asked what is the actual reason for this issue. After some escalation (Normal procedure :-) )
they told me it was their server mistake and it is corrected now.

Solution to DNS issues from ISP

In case if your ISP's DNS server is not working or not up to full satisfaction we can use open DNS address on your computer. The open DNS addresses are

208.67.222.222
208.67.220.220

Steps to assign open DNS in Ubuntu Linux


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RPC Server is unavailable while trying to renew IP address

Yesterday I failed to access Internet. When I type the ipconfig on command prompt I received the IP address 0.0.0.0 and no connection to the wireless network. As the next troubleshooting steps I tried to renew the IP address and it states the following error message "No operation can be performed on Local Area Connection while it has media disconnected. An error occured while renewing interface wireless network connection. The RPC server is unavailable ".


So the process was like this

1. Check the IP address on command prompt by typing ipconfig

Result. IP address ----> 0.0.0.0

2. Renew the IP address by ipconfig/renew

Got the error message which says RPC server is unavailable.

The steps to fix the issue RPC server is unavailable

The reason for this error message "The RPC server is unavailable is the Remote Procedure Call server can't be located. It means the server service is not yet started and to fix the error we need to start the RPC server.

Steps to start RPC server

The steps to start Remote Procedure Call server are:

1. Click on start and go to Run window

2. On Run type services.msc

Now the services window will be opened.




3. Start Remote procedure Call service

We do it by right click on the service and click on start.

4. After starting the RPC server service we need to restart our computer. After restart the issue will be fixed.


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