Retrieve application running on ports in windows

Use netstat command to get application list running on specific ports.

netstat -anob

Run the above command as administrator in command prompt.

Find port usage

Following command can be used to check port usage.
In windows command prompt type following command.

netstat -aon |find /i "listening" |find "port"

This will return port usage.

Windows Username in JAVA

This is a simple code to retrieve windows username in JAVA.

public class getWindowUsername {
    public static final void main( String args[] ) {
      String userName = System.getProperty("user.name");
      System.out.println("Window's Username: "+userName);
   }
}

Find multicast groups

In windows, use following  commands to find multicast groups.

Open command prompt and run the following command in terminal.

netsh interface ip show joins

How to get System information in windows

• Open command prompt
• Type "systeminfo" command
• Run the command

This will get a few seconds to load information.

DNS Mapping in windows

Go to "C:\Windows\System32\drivers\etc".

Edit hosts file in etc folder. Add your ip addres and the mapping name.

Ex :-

192.168.4.7 name.domain.com

Now, you can access your ip address using DNS set above.

Ex :-

http://name.domain.com/App