Daniel Spiekermann

University of Applied Science and Arts Dortmund | FH Dortmund · Faculty of Computer Science

As organizations increasingly adopt virtualized environments for enhanced flexibility and scalability, securing virtual networks has become a critical part of current infrastructures. This research paper addresses the challenges related to intrusion detection in virtual networks, with a focus on various deep learning techniques. Since physical netw...

While network forensics has matured over the decades and even made progress in the last 10 years when deployed in virtual networks, network forensics in fog and edge computing is still not progressed to that level despite the now widespread use of these paradigms. By using an approach similar to software testing, i.e., a mixture of systematic and e...

Computer networks play a key role in everyday lives. To guarantee fail-safe operation, routing protocols are used that enable dynamic routing via redundant paths. Because of this, routing protocols like RIP or OSPF play an important role in modern network infrastructures. The widespread use together with the mostly missing traffic monitoring of the...

Currently, network environments are complex infrastructures with different levels of security, isolation and permissions. The management of these networks is a complex task, faced with different issues such as adversarial attacks, user demands, virtualisation layers, secure access and performance optimisation. In addition to this, forensic readines...

The enormous number of network packets transferred in modern networks together with the high speed of transmissions hamper the implementation of successful IT security mechanisms. In addition, virtual networks create highly dynamic and flexible environments which differ widely from well-known infrastructures of the past decade. Network forensic inv...

The requirements of today's data center networks include scalability, multi-tenancy and isolation from the underlying infrastructure, which are primarily achieved through the use of network virtualization. As a downside, the overall complexity increases with the number of technologies involved, which has a significant impact upon network forensic i...

Cyber-criminals harness more and more techniques like virtual machines or container-based infrastructures for their malicious activities. The inherent dynamic of these virtual environments simplifies the fast creation of vicious services and hide the involved systems like no other technology before. The primary use of virtualisation and especially...

The rise of cloud computing led to the need for highly flexible and dynamic infrastructures, which are able to handle a variety of different applications, the accruing big data and the requests of various customers simultaneously. By the use of virtualization modern datacenters provide an environment for cloud computing infrastructures. In these en...

Cloud environments are more and more used by cyber criminals to perform their malicious activities. With the help of covert channels they hide their data transmissions and message exchange. Whereas different techniques of covert channels in common networks are well-known, the existence of covert channels in cloud environments networks is a new topi...

To resolve the challenges of forensic investigation in virtual networks, we present a new forensic framework called “Virtual Network Forensic Process”. Based on this framework we present the design, implementation and workflow of ForCon — a forensic controller to implement network investigation in OpenFlow controlled networks using Open vSwitch. Cu...

The evolution of virtualization techniques is changing operating principles in today's datacenters. Virtualization of servers, networks and storage increases the flexibility and dynamic of the environment by reducing the administrative overhead. Based on a physical underlay network, different logical networks are implemented with new protocols like...

The evolution of virtualization techniques is changing operating principles in today’s datacenters. Virtualization of servers, networks and storage increases the flexibility and dynamic of the environment by reducing the administrative overhead. Based on a physical underlay network, different logical networks are implemented with new protocols like...

The evolution of virtualization techniques is still changing operating principles in today's datacenters (DC). The virtualization of ordinary servers was just the first step, which increased the dynamic and flexibility of the DC. Providers are now able to offer different virtual machines (VM) faster and with less overhead to their customers. But th...