A company is deploying a new application across multiple virtual servers within their cloud environment. The network administrator has been tasked with ensuring that traffic between the application's web service and database servers is appropriately secured and controlled, without affecting other existing services. What is the most effective method to achieve this?
Deploy network security lists to specifically control traffic between the web service and database servers.
Configure a VLAN that includes both the web service and database servers.
Encrypt traffic between all the virtual servers in the cloud.
Utilize a firewall to manage traffic between all servers in the cloud environment.
Implementing network security lists specifically allows for granular control over traffic between resources, such as between web service and database servers, by defining rules that permit or deny traffic based on pre-set conditions, such as source and destination IP addresses, and port numbers. This method ensures that only authorized traffic can flow between the services, enhancing security without impacting other unrelated services. Using VLANs, while helpful in segmenting the network, often does not provide the depth of traffic filtering based on multiple conditions like network security lists do. Encryption enhances data security but does not control traffic flow. Relying solely on firewalls could be overextensive if the goal is to manage internal traffic between specific services within a protected environment.
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What are network security lists and how do they work?
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How do VLANs differ from network security lists in terms of security?
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Why is encrypting traffic between virtual servers not sufficient for ensuring security?