Enhancing Security in Distributed Systems Using Bastion Hosts, NAT Gateways, and Network ACLs
- Version
- Download 0
- File Size 510.01 KB
- Download
Enhancing Security in Distributed Systems Using Bastion Hosts, NAT Gateways, and Network ACLs
Naga Surya Teja Thallam
thallamteja21@gmail.com
Abstract
With the rise of the day to day use of distributed systems in cloud computing and in enterprise networks, securing a means of communication and access to resources is a fundamental challenge. Traditional security mechanisms usually do not supply robust access control, traffic filtering, and network segmentation, all of which could help to counter cyber threats. This paper investigates how Bastion Hosts, Network Address Translation (NAT) Gateways and Network Access Control Lists (ACLs) are necessary security building blocks of distributed environments. The mechanisms we present are analyzed in detail with respect to how they work individually and together to deliver layered security. We then evaluate the effect of their execution on system latency, network performance, and overall security of the system via theoretical modeling and empirical evaluation. We show that such a multi layered approach of security of Bastion Hosts, NAT Gateways and Network ACLs drastically improves network resilience, eliminates points of attack surfaces and minimize unauthorized access risks. The study also gives mathematics formulations for security risk assessment and presents an optimized security architecture for distributed systems.
Keywords: Distributed Systems, Bastion Host, NAT Gateway, Network ACL, Cybersecurity, Network Security, Access Control, Cloud Security