Secure remote network: A comprehensive study to secure organization’s remote network and setup secure VPN

Rajak, Vikas Sunil Kumar (2024) Secure remote network: A comprehensive study to secure organization’s remote network and setup secure VPN. Masters thesis, Dublin, National College of Ireland.

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Abstract

The growing reliance on remote work by numerous organizations and businesses has expanded the target landscape for cybercriminals. As a result, organizations must enhance their security measures to address challenges such as endpoint vulnerabilities, securing internet- and intranet-facing servers, and ensuring safe access to corporate resources. This paper explores the implementation of various security strategies to secure a organization’s remote networks and minimize the organization’s attack surface. Key measures include the adoption of secure authentication, robust endpoint protection, data encryption, and zero-trust security models. Emphasis is also placed on employee awareness and training to reduce human error, a significant contributor to security risks. A practical demonstration involved exploiting a vulnerable server and subsequently patching it to highlight the critical importance of maintaining updated and secure server configurations. Additionally, the research underscores the significance of Virtual Private Networks (VPNs) in securing organizational remote networks. It discusses the role of VPNs in enabling secure data transmission over public networks and evaluates various protocols, recommending L2TP/IPSec for its robust encryption and security features. The study also details the practical setup of a VPN server within a virtual environment, its connection to a host client, and subsequent hardening to ensure secure end-to-end communication. This comprehensive approach integrates theoretical insights with practical applications to strengthen organizational security in the remote work era.

Item Type:	Thesis (Masters)
Supervisors:	Name Email Salahuddin, Jawad UNSPECIFIED
Subjects:	Q Science > QA Mathematics > Electronic computers. Computer science T Technology > T Technology (General) > Information Technology > Electronic computers. Computer science Q Science > QA Mathematics > Computer software > Computer Security T Technology > T Technology (General) > Information Technology > Computer software > Computer Security K Law > KDK Republic of Ireland > Data Protection
Divisions:	School of Computing > Master of Science in Cyber Security
Depositing User:	Ciara O'Brien
Date Deposited:	28 Jul 2025 10:02
Last Modified:	28 Jul 2025 10:02
URI:	https://norma.ncirl.ie/id/eprint/8247

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