For this example I am going to use EC2 t2.micro instance

while creating instance You’ll get option for key

→ either you generate on your own

→ or let the cloud service do it for you ✅

Example of creating new keypair for EC2

• Either select previous key from drop down
• Or click on create new key pair

1. Enter Name of key
2. Select .pem for SSH
3. Click Create key pair

→ Key will be downloaded

For SSH

1. Open Terminal

   • For windows best usecase will be download Terminal from Windows store (which will use Powershell)
   • Mac and linux uses Terminal

2. Run following command

   ssh -i (path to .pem ) ubuntu@ip address 
   

   1. Best practice: try to give path from the location where your terminal starts so that you don’t have to use cd each time you wants to connect and instead use ⬆️ arrow to use previous command
   2. use public ip address assigned to the instance

   for me it’ll be

   ssh -i ./Downloads/key1.pem [email protected]
   

   (ip will be changed after this blog is posted so no need to worry for me, so don’t try to use my ip)

   but now you’ll be promoted to chose yes or no

   type

   yes
   

   now you’ll be facing some error regarding file is too Open

   so cd to the file

   and run this command with your file name

   chmod 600 key.pem 
   

   → replace key with your file name

   cd
   ssh -i ./Downloads/key1.pem [email protected]
   

   

   Initials will be changed with

   ubuntu@ip…….

   means you are successfully connected.

Get more at

How to SSH

Author: Manav Rajani

Blogs link : Accurate