Conducting a Security Assessment

1.75 hours
  • 7 Learning Objectives

About this Hands-on Lab

In this lab, we will use security utilities provided with Kali Linux to conduct a risk assessment. The lab provides a subnetwork of Linux and Windows servers to provide a complete VPC for exercising the Kali Linux utilities.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Access the Kali Linux System
  1. Establish a session to the Kali Linux system:

    ssh cloud_user@<KALI_LINUX_PUBLIC_IP>
  2. Change to superuser:

    su -
Identify the Address Assigned to the Ethernet Controller
  1. Query the ethernet configuration on the Kali Linux server:


    Make note of the IP address assigned to the primary ethernet controller.

Use the `nmap` Command to Explore the Subnet

Use the nmap utility to explore the ports open on the subnetwork.

For help with nmap commands:

nmap -h

To scan a series or range of subnet private IP addresses:

nmap -sn

To try other flags to speed the port scanning process:

nmap -T4 -Pn -n -p- --min-parallelism 50 to 100 -vv --max-retries 0 or 1
Use the hping3 Utility to Analyze a Single Host

Use the hping3 to scan a certain host on the subnet:


Note: You may obtain the internal IP address of the host from the lab interface, the output from an nmap command, or the AWS dashboard.

Use `nslookup` to Explore the Nameserver Configuration of Various Hosts

Use nslookup to explore the A record on



Use nslookup to look at MX records on


> set q=MX


Use nslookup to interrogate other address types:


> set type=any

Use the dig Tool to Attempt a Domain Zone Transfer

The syntax for the dig command is:

dig axfr [domain host] [IP Address To Transfer To]
Use `finger` to Determine Which Users Are Logged into Any Given Host

Use the finger command to see who is logged in on a host:



finger -s root

Additional Resources

To perform this lab, you should have a basic understanding of Linux commands and Linux networking.

What are Hands-on Labs

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