Course: Basics of Network Security

Coventry University believes that a good student experience is central to learning at a world class standard. To reflect our success we were recently awarded the title of University of …

Thank you for joining us in this short course on Basics of Network Security. We hope that you enjoyed your learning experience. This short course is the introductory two-week course …

Congratulations! You have now completed this Short Course on Basics of Network Security.  During the second week of this short course we looked at: The challenges in securing computer networks …

The SSH server needs to be configured to prevent such attacks. We will look into one possible way for doing that and test the scan again. We will add two …

Note: Your networking should be already set up for the exercise in the VMs. You can verify this by looking at the IP addresses of the network interfaces in the …

Often the port scan will be followed by a brute-forcing attack if an authenticated service has been discovered. We will perform a password brute-forcing attack on the SSH server which …

Many cyber attacks begin with a port scan. Being able to detect such scans will give us an early warning that our network and systems are being targeted and possibly …

Last week we looked into one of the standard techniques in defending our networks and systems – firewalls – which allow us to hide sensitive systems from untrusted networks. However, …

The ‘battle’ between cyber attackers and defenders is a very dynamic one, with new technologies (both offensive and defensive) constantly being developed and deployed. Attackers continually come up with new …

In order to defend our infrastructure more effectively we first need to understand who could be actually attacking us, and what are their methods and motivations. We can break the …

Your task Run the scans from the previous step yourself. Carefully check the results that you get and compare them with those without a firewall. Further challenge Perform a scan …

Watch the video in which we perform a basic host scan of a target behind a firewall. We are now going to turn on the firewall on the server and …

Firewalls are expected to be part of the security of every computer system and network. In its basic functionality, a firewall monitors the incoming and/or outgoing traffic and decides whether …

Your task Run the scans from the previous step yourself. Share the results that you get. Further challenge Nmap is capable of probing the OS and running services to determine …

Watch the above video in which we perform a basic host scan. Find out whether it is behind a firewall and what services are running on it. Over the next …