SSH automation in Bash Scripting - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to connect to a remote server using SSH.

Bash Scripting

ssh [1]@example.com

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

Auser

Bpassword

Croot

Dlocalhost

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'password' instead of username in the SSH command.

Using 'localhost' which connects to the local machine, not remote.

The SSH command requires the username before the @ symbol to connect to the remote server.

2fill in blank

medium

Complete the code to run a command remotely over SSH.

Bash Scripting

ssh [e-mail] '[1]'

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

Als -l

Bcd /home

Cmkdir new_folder

Dexit

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'exit' which closes the SSH session instead of running a command.

Using 'cd /home' which changes directory but does not produce output.

The command 'ls -l' lists files in long format on the remote server.

3fill in blank

hard

Fix the error in the SSH command to copy a file from local to remote.

Bash Scripting

scp [1] [e-mail]:/home/user/

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

Aexample.com

B/home/user/file.txt

[e-mail]

Dfile.txt

Attempts:

3 left

💡 Hint

Common Mistakes

Adding user or host before the local file name causes errors.

Using a remote path as the source file.

The local file name 'file.txt' should be specified without user or host prefix.

4fill in blank

hard

Fill both blanks to create an SSH key pair and copy the public key to the remote server.

Bash Scripting

ssh-keygen -t [1] -f ~/.ssh/id_[2] -N ''

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

Arsa

Bdsa

Ced25519

Decdsa

Attempts:

3 left

💡 Hint

Common Mistakes

Using outdated key types like 'dsa'.

Mismatching key type and file name.

The modern recommended key type is 'ed25519', and the file name matches the key type.

5fill in blank

hard

Fill all three blanks to copy the SSH public key to the remote server for passwordless login.

Bash Scripting

cat ~/.ssh/id_[1].pub | ssh [2]@example.com 'mkdir -p ~/.ssh && cat >> ~/.ssh/[3]'

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

Arsa

Buser

Cauthorized_keys

Ded25519

Attempts:

3 left

💡 Hint

Common Mistakes

Using wrong key file name.

Using wrong remote username.

Appending to wrong file instead of 'authorized_keys'.

The public key file is 'id_ed25519.pub', the username is 'user', and the keys are appended to 'authorized_keys'.