What is IaaS (Infrastructure as a Service)?

Turkish: IaaS

IaaS lets teams rent virtual servers, storage, and networking from the cloud while managing the operating system layer themselves.

What Is IaaS?

IaaS (Infrastructure as a Service) is a cloud model for using virtual machines, disks, networks, load balancers, and firewalls without buying physical hardware. The provider operates the data center, physical servers, and virtualization layer; the customer remains responsible for the operating system and the applications running on it.

AWS EC2, Azure Virtual Machines, Google Compute Engine, and DigitalOcean Droplets are common examples. A team can provision a server in minutes, increase CPU or memory, attach backup storage, or run a copy in another region.

Shared Responsibility

IaaS gives flexibility, but it does not remove operational work. Operating system patches, network rules, access keys, backups, monitoring, and cost controls still need to be part of the team’s process. A misconfigured security group or forgotten test instance can create both security and budget issues.

When to Use It

IaaS fits custom network topologies, legacy application migration, database setups that need low-level control, and gradual cloud migration. If the goal is to reduce server administration further, PaaS may be a better fit. For broader service architecture on Amazon’s platform, AWS design choices should be evaluated separately.