changes to ssh key

2022/2022-06-07_git-trilogy-part-2/slides/ssh.md

-# Key-based authentification
+# Key-based authentication
 
-As the first step GitLab needs to be able to recognize you. We will use the most secured method: key-based authentication.
+When communicating with the Gitlab server, you need credentials (username and password). Disadvantage: you have to enter the password every time.
 
-You need to do this setup just ones (and repated if you change\crash\lost your laptop).<br>
-- Open terminal (command line)
-- Type `ssh-keygen -t ed25519 -C firstname.lastname@uni.lu`
-- Accept the suggested filename and directory (press Enter):<br>
-<img height="100px" src="slides/img/keyGen.png">
-- Press Enter without entering the passphrase. <br>
+Better: identify your laptop once, and then you do not need to enter the credentials anymore.
 
-A public and private key are generated and stored in specific location on your laptop. Now you need to add the public key to your GitLab account.<br>
-- Copy the contents of your public key file. You can do this manually or<br>
-    - macOS: `tr -d '\n' < ~/.ssh/id_ed25519.pub | pbcopy`
-    - Windows: `cat ~/.ssh/id_ed25519.pub | clip`
-- Now let's move to GitLab https://gitlab.lcsb.uni.lu/
+You need to do this setup just once (and repeat if you change your computer).<br>
+- Open VS code
+- Browse to `Terminal` > `New Terminal`
+- Type this command at the command prompt: `ssh-keygen -t ed25519 -C firstname.lastname@uni.lu`
+- Accept the suggested filename and directory (press `Enter`):
+  ```
+  Generating public/private ed25519 key pair.
+  Enter file in which to save the key (/home/user/.ssh/id_ed25519):
+  ```
 
+- Press `Enter` (entering the passphrase is optional).
 
 
-# Key-based authentification
-- On the top bar, in the top right corner, select your avatar.
-- Select **Preferences**.<br>
+
+# Key-based authentication
+
+A public and private key are generated and stored in specific location on your laptop. Now you need to add the public key to your GitLab account:
+
+Copy the contents of your public key file:
+- macOS: `tr -d '\n' < ~/.ssh/id_ed25519.pub | pbcopy`
+- Windows: `cat ~/.ssh/id_ed25519.pub | clip`
+
+Now, let's move to GitLab https://gitlab.lcsb.uni.lu/
+
+- On the top bar, in the top right corner, select your avatar, then `Preferences`.
+<center>
 <img height="200px" src="slides/img/addSSHavatar.png">
-- On the left sidebar, select **SSH Keys**.
+</center>
+
+
+
+# Key-based authentication
+
+- On the left side, select **SSH Keys**.
 - In the **Key** box, paste the copied public key. Make sure it starts with *ssh-ed25519* and finishes with your e-mail.
 - In the **Title** box, type a description, like *Work Laptop*.<br>
-<img height="400px" src="slides/img/addSSH.png">
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+<center>
+<img height="400px" src="slides/img/addSSH.png">
+</center>
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