Dial-up connection using Command prompt

Connecting to internet using mobile partner or some other program is simple. But it consumes your system resources(around 200 MB of RAM). You can simply save your resources by using command prompt. This method is applicable only on Windows platform.

First, install the device driver and create the dial-up connection, or just install the mobile partner(or software that came along with your modem) and connect using it(it will automatically create the dial-up connection). now you can exit that program.

Here is the procedure to connect using command prompt:

Open command prompt
Type the following command

rasdial "CONNECTION NAME"

Ex: rasdial "TATA DOCOMO INTERNET"

To disconnect,

rasdial "CONNECTION NAME" /Disconnect

You can also automate this process by creating batch file.
Connect
Open any text editor and copy the following code

:Redial
rasdial "CONNECTION NAME"
if %errorlevel% == 0 exit
goto Redial;

Replace the CONNECTION NAME with your connection name(you can rename it) and save it as connect.bat

Disconnect
Open any text editor and type the following

rasdial "CONNECTION NAME" /Disconnect
exit

Replace the CONNECTION NAME with your connection name(you can rename it) and save it as disconnect.bat

Save them at the location of your convenience and just double click them to connect and disconnect a dial-up connection.

Ubuntu: Access a usb flash drive from the terminal

1. Find what the drive is called You'll need to know what the drive is called to mount it. To do that fire off: sudo fdisk -l You're looking for a partition that should look something like: /dev/sdb1 . Remember what it's called. 2. Create a mount point Create a new directory in /media so you can mount the drive onto the filesystem: sudo mkdir /media/usb 3. Mount! sudo mount /dev/sdb1 /media/usb When you're done, just fire off: sudo umount /media/usb Source: StackOverflow

Code for Php based online Treasure Hunt

Hello guys. Some time back I organized an online treasure hunt as part of an event at my college. I thought of sharing the code with you, as you might find it useful. So, I uploaded it on github and here is the link to my repository. Download it from here , and enjoy organizing the game

Java: Use BigInteger in for-loop

In my previous post , I mentioned a way to handle large integers by using BigInteger. Now I'm going to provide a very important usage of it. We often use for-loop. So here is the way to use it: Ordinary integers: for(int i = 1; i <= n; i++) { //Task to do } BigInteger: for (BigInteger bi = BigInteger.valueOf(1); bi.compareTo(n) <= 0; bi = bi.add(BigInteger.ONE)) { //Task to do } here n is a BigInteger variable.

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