Yes, they are, and we will give you the top 6 reasons why.
Today, let’s refresh our memory after all the bare metal, containers and other serverless solutions, remembering the still suitable and accessible method of safe work — and for some, the whole network life — the good old “virtual machines”.
📌 Isolation of environment
When isolating systems on a single physical machine (host), if one VM is compromised, the others will remain intact. This also significantly reduces the risk of further movement of an attacker into the host network.
📌 Fast deployment and testing
Rapid deployment of new systems makes it possible to test different system configurations and security patches. This flexibility in testing helps to quickly identify and eliminate potential system vulnerabilities — both virtual and the host itself.
📌Efficient use of resources
Combining several virtual machines on one host not only reduces hardware costs, but also allows for more accurate and reliable monitoring of network activity — a rare case when centralization is something potentially good in security.
📌 Snapshots and instant rollbacks of changes
Virtual machines make it possible to take snapshots of system states, which you can quickly return to in case of problems.
📌 Network segmentation
Robust network segmentation improves security by isolating different parts of the network. This prevents unauthorized access to sensitive parts and reduces potential harm from an intruder.
📌 Scalability and flexibility
When user needs change, virtual machines provide scalability to adapt to new requests. The flexibility of setting up virtual machines will allow you to adjust the network architecture conveniently and without harm to security protocols.
- IMHO: For beginners, by the way, VM is also an excellent option to study any OS before a full-fledged transition.
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