CYB525 Cybersecurity | Research Methods for Hardening PFSense
Research methods for hardening PFSense.
Using the virtualized PFSense system created in Topic 3, harden the PFSense system using Snort.
1.Start the Snort service.
2.Update Snort and download the latest community rules.
3.Ensure that you have configured Snort to detect port scans.
Using the Kali VM from Topic 3, run another port scan.
Using screenshots of the results, explain if Snort detected the port scan.
Create step-by-step instructional guide detailing how to detect scans using snort. Make sure to:
1.Explain what hardening is, what Snort does, and why it is being used in this scenario.
2.Explain any other methods by which PFSense can be hardened.
3.Include at least five screenshots.
Answer:
Step#1: Staring the snort GUI for configuration –
We need to navigate to services> Snort for starting the snort from the pfsense menu.
Step#2: Setting up the snort –
The global setting should be opened and the new set of rules should be downloaded for the management of the merging threats and a unique code should be entered. More than one rule scan also be set but it needs a paid subscription. After setting the desired rules the interval should be set and new updates should be checked for enabling the package rules. Update interval can also be used for automatically updating the configuration and checking the emerging threats for any types of updates in the posted rule.
Step#3: Updating the rules
In the update tab status of the download can be checked and new updates can be downloaded. If there is a new set of rules available in the website the update is downloaded and installed in the client machine configured with snot rules. The update is checked with the comparison of MD5 value of the local file with the file in the remote server. If the local and the remote file does not match the new file is downloaded. There is also a FORCE option that can be used to forcefully update the snort rules without performing the MD5 hash test.
Step#4: Adding Snort Interface
For the addition of the snort interface the + icon is needed to be clicked and the drop down option should be used for finishing the interface configuration. The save option should be used for the configuration of the snort interface. If there is any warning then the rules must be checked and the interface must be configured again.
Step #1: Opening portscan using Kali linux
The nmap is used for opening the portscan and firstly a ping scan is used for finding the open ports and the service running on the port of the targeted IP address.
The scan can be specified with the different set of commands such as
Bibliography
Allen, L., Heriyanto, T., & Ali, S. (2014). Kali Linux–Assuring security by penetration testing. Packt Publishing Ltd.
Gaddam, R., &Nandhini, M. (2017, March). An analysis of various snort based techniques to detect and prevent intrusions in networks proposal with code refactoring snort tool in Kali Linux environment. In Inventive Communication and Computational Technologies (ICICCT), 2017 International Conference on (pp. 10-15). IEEE.
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