SSH key generation (ssh-keygen) in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to generate a new SSH key pair using the default RSA algorithm.

Linux CLI

ssh-keygen [1]

Drag options to blanks, or click blank then click option'

A-t rsa

B-p

C-f

D-l

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-p' which is for changing passphrase.

Using '-f' which specifies file name.

Using '-l' which lists fingerprints.

The '-t rsa' option tells ssh-keygen to generate an RSA key pair, which is the default and most common type.

2fill in blank

medium

Complete the code to specify the file name for the SSH key pair.

Linux CLI

ssh-keygen -t rsa [1] ~/.ssh/my_custom_key

Drag options to blanks, or click blank then click option'

A-C

B-f

C-l

D-p

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-p' which is for passphrase.

Using '-l' which lists fingerprints.

Using '-C' which adds a comment.

The '-f' option lets you specify the file name for the key pair.

3fill in blank

hard

Fix the error in the command to add a comment to the SSH key.

Linux CLI

ssh-keygen -t rsa -C [1]

Drag options to blanks, or click blank then click option'

Amykey

[e-mail]

C"[e-mail]"

D-C

Attempts:

3 left

💡 Hint

Common Mistakes

Not quoting the comment with special characters.

Using the option '-C' again as a value.

Using a comment without '@' when an email is expected.

The comment should be a string, so it needs quotes if it contains special characters like '@'.

4fill in blank

hard

Fill both blanks to generate an Ed25519 SSH key with a custom file name.

Linux CLI

ssh-keygen [1] [2] ~/.ssh/id_ed25519_custom

Drag options to blanks, or click blank then click option'

A-t ed25519

B-f

C-p

D-C

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-p' which is for passphrase.

Using '-C' which is for comment.

Mixing up the order of options.

Use '-t ed25519' to specify the Ed25519 key type and '-f' to specify the file name.

5fill in blank

hard

Fill all three blanks to generate an RSA SSH key with a comment and a custom file name.

Linux CLI

ssh-keygen [1] [2] ~/.ssh/id_rsa_custom [3] "[e-mail]"

Drag options to blanks, or click blank then click option'

A-t rsa

B-f

C-C

D-p

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-p' instead of '-C' for comment.

Not quoting the comment.

Omitting the file name option.

Use '-t rsa' for RSA key type, '-f' for file name, and '-C' to add a comment.