IAM (Identity and Access Management) rialaíonn cé a bhfuil ar a chumas a dhéanamh in AWS — ag bainistiú úsáideoirí, grúpaí, róil, agus ceadanna. Is bunúsach é do dhlúth-dhóchas AWS: gach gníomh a dhigiltéireachádh trí IAM, mar sin is riachtanach a thuiscint.
Cad atá a bhainistiú ag IAM
IAM controls AUTHENTICATION (who you are) and AUTHORIZATION (what you can do):
USERS → individual identities (people or applications) with credentials
GROUPS → collections of users (assign permissions to a group → all its users get them)
ROLES → identities ASSUMED temporarily (by users, services, or AWS resources)
— no permanent credentials; key for services/cross-account access
POLICIES → JSON documents defining PERMISSIONS (what actions on what resources)
