By Editing Host File, you can point IP Address for a Domain in your local system.

Windows 7 :

Note : You can also use these steps to modify host file in Windows 8/10 as well.

1. Press Windows+R to open Run.
   
   
2. Enter Below Command to open host file in notepad.

# notepad c:\windows\system32\drivers\etc\hosts
 

3. Modify the required line and save your changes.
   
   
   
   

Ubuntu :

We will use nano editor to modify host file in ubuntu. You can use your favorite editor. You can find host file at path /etc/ folder. We logged in as root user here. You can use sudo if you are not logged in with root user.

1. Hit below command.

# nano /etc/hosts

2. Modify the Required line and save your settings by ctr+x Button. Press Y to complete save changes.
   
   
   
   

Mac OS X : 

You will find the host file in MAC OS at the same path as we see in Ubuntu.

1. Open a GUI Text Editor.
   
   
2. Access the file at /etc/ folder using below command.

# vim /etc/hosts

3. Modify your changes and save the Host file.