Week 2 - Physical Infrastructure Services

Question 1

What’s a server operating system?

Answer 1

It’s a regular OS but it’s optimized for server functions like more network connections and more RAM capacity

Question 2

What’s the benefit of server operating systems in terms of security and services?

Answer 2

They’re usually more secure and come with additional services that don’t need to be set up separately

Question 3

What are the 2 ways you can run your service?

D, V

Answer 3

1. Dedicated hardware
2. Virtualized instance (on a server)

Question 4

In Linux, the most popular remote access tool is?

Answer 4

OpenSSH

Question 5

What’s the command to install an SSH client on a machine you’re connecting from? (for remote connection on Linux)

Answer 5

sudo apt-get install openssh-client

Question 6

What’s the command to install an SSH server on the machine you’re connecting to to establish a remote connection on Linux?

Answer 6

sudo apt-get install openssh-server

Question 7

What are 2 popular tools to use on Windows for remote access connections via CLI command line interface?

Answer 7

WinRM
Putty

Question 8

What’s a popular tool to use to remote access the GUI on another machine?

Answer 8

RDP (remote desktop protocol)

Question 9

What are the 3 simple steps you take to setup OpenSSH remote access on 2 Linux machines?

Answer 9

1. Install an SSH client on machine you’re connecting from
2. Install an SSH server on machine you’re connecting to
3. Test connection by using ssh server’s IP address username until it asks for a password

Question 10

SSH is included with what server operating systems? (2)

Answer 10

1. Linux
2. Mac

Question 11

What does RMM stand for?

Answer 11

Remote Monitoring and Management

Question 12

What are some uses for RMM? (4)

Helps, Remote, Creates, Automates

Answer 12

1. Helps maintain the network by sending periodic status reports about the health of each endpoint (installed on each device)
2. Remote install of security patches and updates
3. Creates a ticket if problems occur to send to IT staff
4. Automates routine maintenance

Question 13

RDP is available on which operating systems? (2)

Answer 13

1. Windows
2. Mac

Question 14

RDP uses what network port?

Answer 14

3389

Question 15

What’s the downside to RDP? (2)

Doesn’t enforce, Uses a single

Answer 15

1. Doesn’t enforce strong sign-in credentials (vulnerable to stolen credentials and brute force attacks)
2. Uses a single dedicated port that makes it vulnerable to on-path cyber attacks

Question 16

What are 2 ways VPNs can be implemented?

s on ns, on nr

Answer 16

1. software running on networked servers
2. on network routers with VPN features enabled

Question 17

VPNs work well for what size organizations?

Answer 17

small to medium, maybe not adequate for large

Question 18

VPNs aren’t ideal to use with contractors and vendors because they need to provide…?

Answer 18

restricted levels of network access

Question 19

What has largely replaced FTP (file transfer protocol) tools?

Answer 19

Cloud storage platforms like Google Drive, Microsoft OneDrive, Dropbox

(comes with asynchronous file transfers, encryption, security, authentication, file share with many)

Question 20

For what type of organization would cloud-based storage not be an ideal option for?

Answer 20

Organizations that need to follow certain privacy laws and regulations or have other security concerns

(they can use SSH or HTTPS protocols for FTP applications)