Divyaprakash

Divyaprakash

he/him/his

PhD Candidate

Making Remote Access Easy: A Simple SSH Guide

1 minute read

Published:

Making Remote Access Easy: A Simple SSH Guide

Want to access your remote systems without the hassle of typing passwords? Let’s set it up in three easy steps.

1. Generate Your SSH Key

First, we’ll create your SSH key pair. Open your terminal and run:

ssh-keygen -t rsa

When you run this command:

  • It will ask where to save the key (usually ~/.ssh/id_rsa) - just press Enter to accept the default
  • It will ask for a passphrase - you can press Enter twice to skip it
  • This creates two files: id_rsa (private key) and id_rsa.pub (public key)

2. Copy Your Key to the Remote Server

Now let’s copy your public key to the remote server. Here’s the easiest way:

ssh-copy-id username@remote-server

For example, if your username is john and server is example.com:

ssh-copy-id john@example.com

You’ll need to enter your password one last time for this step.

3. Make Life Even Easier with SSH Config

Create or edit ~/.ssh/config file:

nano ~/.ssh/config

Add your server details like this:

Host myserver
    HostName example.com
    User john
    Port 22

Now instead of typing:

ssh john@example.com

You can simply type:

ssh myserver

And that’s it! You can now log in to your remote server without typing passwords or long server names.

Remember:

  • Keep your private key (id_rsa) safe and never share it
  • You can use different names in the config file for different servers
  • The config file can handle multiple server entries

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