Network Segmentation: Application-Based Vs User-Based
When it comes to network segmentation, there are two primary methods of approach - application-based and user-based. Both of these segmentation techniques can provide enhanced network security by limiting network access to specific users and applications, but they have significant differences in how they operate.
Application-Based Segmentation
Application-based segmentation is a network security strategy that focuses on classifying network traffic based on the applications used to generate it. By identifying which applications are generating the traffic, administrators can create policies that control the network access of those applications. For instance, web traffic would be allowed to flow freely through the network, while file-sharing services could be blocked.
User-Based Segmentation
User-based segmentation, on the other hand, is a network security strategy that focuses on classifying network users based on their identity. Administrators can create policies that determine which resources are available to specific users, limiting network access. This segmentation technique is often likened to creating separate virtual networks for different user groups.
Now, the question remains - which of these segmentation techniques is better?
Network Segmentation Comparison
To understand the benefits of application-based and user-based segmentation techniques, we can compare them on key factors, with an emphasis on security.
Security
Both techniques are equally effective at enhancing network security. Application-based segmentation polices specific programs or web content from accessing other areas of the network, while user-based segmentation limits network access only to authorized users. With these methods in place, a network can better protect against malicious traffic and prevent unauthorized access to network resources.
Granularity
While both techniques of segmentation provide significant control and flexibility, application-based segmentation generally offers a finer degree of granularity. This is because administrators can define policies based on the specific applications being used, while user-based segmentation policies are typically based on broader user groups.
Costs
In terms of equipment requirements, both application-based and user-based segmentation will require network devices with the necessary security features. However, the costs will generally vary depending on the approach adopted. Application-based segmentation is generally less expensive since it focuses on applications as opposed to user groups, which require more granular control.
Conclusion
When it comes to choosing between application-based and user-based segmentation, the choice is not always black and white. The best approach will depend on your specific network requirements, and you can choose either technique, or a combination of these techniques, to achieve the desired level of network security.
Through application segmentation, it is possible to limit access to certain applications, while user-based segmentation can help keep sensitive information away from specific users. When applied optimally, both techniques have significant benefits.