How to set key based authentication in remote machine

Question

I have my server-client scenario for my project. Server is in remote desktop. But every time I am running some program in my remote server, it asks me password. It is good for security purpose, but it takes time. 

Is there any way so that it will not ask password every time?

Thank You 

Answer 1

Hi@akhtar,

You can set key based authentication in your server machine. For that you have to create one ssh key and copy that key in your remote system.

$ ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:uvGnlxsbPHSD99b2qQ/Oe0fNcYVtSf+q5WitlkpyXj8 root@master
The key's randomart image is:
+---[RSA 2048]----+
|              .+.|
|              ..=|
|               .o|
|           .   .o|
|        S o +  .=|
|       . o o o o+|
|      o . B..+=.o|
|       + =+**BEo+|
|      . o+==+*B+o|
+----[SHA256]-----+

$ ssh-copy-id 'remote ip'

Now, you can able to run your program without any password.
Thank You