SSH - FIle Permission is too open Error - Ubuntu

If you ever face this kind if error that means the file/ private key's permission has been changed.
To let it work again we just need to change the accessibility of the file to the owner only again.

Steps to overcome this error:
1. Open Terminal
2. Sudo su and provide root password
3. Move to the location of the private key file
4. Run command as:

chmod -R 600 <Name of the file with extension>

Now we are done, just go and and try to open the file and it will work fine.

Enjoy Learning :)