IaaS (Infrastructure as a Service)

IaaS (Infrastructure as a Service) is a cloud service model where the provider supplies virtualized computing infrastructure, such as virtual machines, block storage and networks, and you manage the operating system, runtime and applications.

Why it matters

IaaS gives the most control of the three main cloud models. You choose the machine size, operating system and network layout, which suits custom software, legacy applications and specialized security needs.

That control comes with responsibility: patching, hardening, scaling and backups are your job. Cloud VMs from major providers and VPS plans are both examples of IaaS.

Example

You launch a virtual machine with 4 vCPUs, attach a 100 GB block volume, open ports 22 and 443 in a firewall rule, and install your own web server. The provider guarantees the hardware and hypervisor; you maintain everything inside the VM.

Common mistakes

• Forgetting that OS patches and firewall configuration are not handled for you.
• Leaving management ports such as SSH open to the whole internet.
• Choosing IaaS for a simple app that a PaaS could run with far less operational work.

Related

• PaaS (Platform as a Service)
• SaaS (Software as a Service)
• Virtual Machine (VM)
• Cloud Computing

यह पेज सामान्य जानकारी है, जिसे हमारी संपादकीय टीम ने लिखा है और दस्तावेज़ीकरण बदलने पर अपडेट किया जाता है। सर्वर और प्रदाता अलग-अलग होते हैं, इसलिए बदलाव पहले सुरक्षित तरीके से जाँचें। देखें: संपादकीय नीति और अस्वीकरण.