Remote Administration

Question 1

What does SSH stand for?

Answer 1

Secure SHell

Question 2

SSH uses a broad category of cryptography. Do you know what it’s called?

Answer 2

Public-key cryptography or Asymmetric cryptography

This is a special type of cryptography where, instead of both agents having a copy of the secret key that is used to decrypt, each agent has their own asymmetric key pair and they use math magic to send and receive secrets that eavesdroppers can’t decypher.

Question 3

What does SFTP stand for?

Answer 3

Secure FTP!

Secure ( File Transfer Protocol )

Question 4

What command is used for gathering keys from remote hosts for use in the ‘ssh_known_hosts’ file?

Answer 4

ssh-keyscan

Question 5

PKI STANDS FOR WAT

Answer 5

PRIVATE KEY IDENTITIES

Question 6

What command loads PKIs into the authentication agent, typically ‘ssh-agent’. This action is also referred to as “loading into the environment” in the practice test on linux academy

Answer 6

ssh-add

Question 7

What is the name of the implementation of SSH used on SLES and most operating systems? You can check it with ssh -V

Answer 7

OpenSSH

Question 8

What is the default port number used for an ssh connection?

Answer 8

22. The ssh client uses port 22 on the client server and the ssh server uses port 22 to host the connection on the target server.

Question 9

If you want to copy one file from a remote server to your directory /tmp/work, what command would you use?

Answer 9

scp username@hostname:/path/to/the/file /tmp/work

Question 10

ssh-keygen creates a human-readable summary of a typically hard-to-read key file. What is it called?

Answer 10

Fingerprint

Question 11

What command would you use to output the fingerprint of your ecsda public key?

Answer 11

ssh-keygen -lf ssh_host_ecsda.pub