SSH config file in Linux CLI - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to specify the SSH username in the config file.

Linux CLI

Host example
  User [1]

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

Aadmin

Bssh

Croot

Dguest

Attempts:

3 left

💡 Hint

Common Mistakes

Using a hostname instead of a username.

Leaving the username blank.

Using an invalid username.

The 'User' directive sets the username for SSH connections. Here, 'admin' is the username to use.

2fill in blank

medium

Complete the code to specify the SSH port number in the config file.

Linux CLI

Host example
  Port [1]

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

A22

B21

C443

D80

Attempts:

3 left

💡 Hint

Common Mistakes

Using HTTP or FTP ports instead of SSH port.

Leaving the port number out when a non-default port is needed.

The default SSH port is 22. This line sets the port to connect to on the remote server.

3fill in blank

hard

Fix the error in the SSH config line to specify the identity file path.

Linux CLI

Host example
  IdentityFile [1]

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

A/home/user/.ssh/known_hosts

B~/.ssh/id_rsa.pub

C/etc/ssh/ssh_config

D~/.ssh/id_rsa

Attempts:

3 left

💡 Hint

Common Mistakes

Using the public key file instead of the private key.

Using unrelated config or known_hosts files.

The 'IdentityFile' should point to the private key file, usually '~/.ssh/id_rsa'. The public key or config files are incorrect here.

4fill in blank

hard

Fill both blanks to set the hostname and enable compression in the SSH config.

Linux CLI

Host [1]
  Compression [2]

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

Amyserver

Byes

Cno

Dexample.com

Attempts:

3 left

💡 Hint

Common Mistakes

Using a full domain name as the host alias when a simple name is expected.

Setting compression to 'no' when the goal is to enable it.

The 'Host' directive names the SSH alias, here 'myserver'. 'Compression yes' enables data compression for faster transfers.

5fill in blank

hard

Fill all three blanks to create a config that sets the host alias, user, and disables strict host key checking.

Linux CLI

Host [1]
  User [2]
  StrictHostKeyChecking [3]

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

Adevserver

Bdeveloper

Cno

Dyes

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing 'StrictHostKeyChecking' values and setting it to 'yes' when disabling is intended.

Using a username that does not exist on the remote server.

The host alias is 'devserver', the user is 'developer', and 'StrictHostKeyChecking no' disables the prompt for unknown hosts.