ssh-add - Add keys permanent

Keys are removed after reboot, Add ssh keys permanent

If you add private keys or .pem files using ssh-add and reboot your system, they are disappeared.

To add the keys permanently, here is the solution.

Suppose your key file is filename.pem and it is in Documents. In this case, Add the following command in your .bashrc file.

ssh-add /root/Documents/filename.pem 2>/dev/null
 
Now this key will be added permanently in your listing.

You can add as many keys you want.

Make xubuntu desktop classic

Remove Unity theme from xubuntu and install classic desktop


Install :
sudo apt-get install xubuntu-desktop gksu leafpad synaptic

AWS - Amazon - Stopping the instance changes my public IP

AWS - Public IP should not be changed

When you stop and start instance, it changes your public IP. If you do not want to change every time, Here is a solution for you.
You need to create Elastic IP for it. 
It will generate a new IP and it will not be changed.

EC2 > Elastic IPs (under network and security)
click on Allocate New address - A new IP will be generated
Now connect this IP to your instance.
Select the new created public IP. Click on the Associated Address.
Enter your instance name. It will show current private IP and current public IP in the drop down.
Now associated with it. Now your instance is connected to new created public IP.
Now if you stop or start your instance, public IP will not be changed.