In the past couple of decades, security threats have taken singular to complex forms. Its nature has become more destructive as network defense experts face many challenges. Thousands of Internet of Things (IoT), an interconnected chain of devices, is now capable of launching ruinous Distributed Denial of Service (DDoS). To combat this, one of the best emerging solutions is the adoption of a hybrid network.
With the adoption of advanced technologies, such as IoT, cloud services, Bring Your Own Device, and many others, there is no defined perimeters and clear network boundaries. And as the traffic is also encrypted, it gets difficult to spot the possible threats. Security teams struggle to keep their organizations safe from multi-faceted threats. To address the changing threat landscape, enterprises need specialized security applications and systems. Different passive and active security applications are combined to create layered security protection. Some of these solutions are deployed at multiple points in a network while others are put up at the network boundaries.
Addressing the challenges of a hybrid network environment
The modern IT security team is competing to find a solution offering high agility, increased workforce productivity, mapped to applicable regulatory compliance, and reduced costs. Business leaders have a misconception that cloud is the solution to all their security-related issues. But it is impossible to migrate the entire IT infrastructure to cloud without sacrificing security. That’s why organizations are considering hybrid network models over cloud infrastructure.
The hybrid network allows us to mix up various features of on-premise, public and private cloud infrastructure to get the desired agility, security, and save cost.
Challenges while security applications deployment
Once the type, combination, and placement of the security applications are decided, the security team faces a few challenges, which are –
- Traffic visibility at various segments of the network, especially in cloud-based environments
- Performance of security applications when loaded with high traffic volume
- In the case of encrypted traffic, the possibility of hidden threats
- Combined monitoring across different locations
The security solutions have a lesser impact when deployed separately or in a standalone manner. They also have an adverse effect on the network they are supposed to be protecting.
Major threats in network security
Overcoming hybrid network security challenges with network visibility and NPB
Certified network defenders build visibility using Network Packet Broker (NPB) devices, which can bring a revolutionary change in overcoming the stated concerns. For impactful results, they use NPB with virtual agents and network tapping (active as well as passive). Network tapping analyzes the local network for events, thus, helping network administrators in network monitoring. It is one of the best ways to gain access to traffic without impacting the integrity of the network. In a virtual environment, a tapping function can be used for network filtering and then moving it ahead towards a virtual monitoring application that is located outside the virtual server.
Under a unified visibility plane, NPBs get traffic from all the physical and virtual test access ports (TAP). The process ensures that the data packets are delivered to accountable security as well as monitoring tools.
Modern networks demand the evolution of security infrastructure, which, in turn, requires better network visibility for different kinds of IT environments – cloud, on-premise, and even hybrid. A unified visibility plane is an answer to all security-related concerns. To bring all these solutions under one roof, organizations need an expert – a skilled Network Defender.
Certified Network Defender (C|ND) is a network security program that helps you adopt the required network security skills to create solutions that can overcome the hybrid network security challenges. The hands-on program offers fundamental as well as advanced knowledge of network security. Its course content is mapped to system and network administrator roles of the Department of Defense (DoD).
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