In Oracle Cloud, we need to have public key when we need
to create a service instance and private key is also required when we need to
access it using SSH utility. In this post, we will show how we can create key
pair (private and public keys).
For this post, we will use PUTTY to generate these keys
as it is available for both windows and Linux.
Follow the below steps to generate key pair.
Step
2:
Open the puttygen.exe file and it opens another window as shown below. In parameters,
select “SSH-2 RSA” and “2048” in Number
of bits in the generated key as SSH 2 is most recent version of SSH.
Click on generate button to generate the keys and it
opens the below window where you need to move the mouse in empty area as
highlighted in red box in below screen shot to generate the key. You need to
keep the mouse moving until key generation is successful.
You see public key gets generated as highlighted in below
screen shot along with Key comment; you can update the key comment name as per
your naming standards if required.
You can also secure this key by entering the password in
Key passphrase but for now we keep it blank.
Copy the text for public key and put it to notepad and
save it with .pub extension as we need this public key file to create service
instance later.
Now, save the private key by clicking on “Save Private
Key” button. Once you click it, it opens a pop up showing that you are going to
save the key without any password, click on yes to save it.
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