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Cloud computing

  • cloud computing deployment models

    • private
    • community - several orgs
    • public
    • hybrid

  • service models

    • SaaS - software as a service
      • remote access to applications based on monthly or annual subscription fee
      • log in and just use it, not respon for maintenance
    • PaaS - platform as a service
      • best solution for a web developer intending to create a web app?
      • you get the hardware and stuff, but have to develop yourself
    • IaaS/HaaS - Infrastructure as a service
      • responsible for mgmt/sec/data
      • ex: web service provider
    • XaaS - anything as a service
      • any IT function done as a service

cloud_models.PNG

  • DaaS - desktop as a service - thin client

  • FaaS - function as a service - just worry about web app, no worry about OS

  • fog computing ("cloud btwn cloud and LAN") - operation of computing, storage, and networking services between end devices and computing data centers

  • users use transit gateway to connect to VPC (virtual private cloud)

    • VPC is an isolated, private cloud inside public one
      • isolated thru use of
        • subnets
        • VLAN
        • VPN
  • SIAM (service integration and mgmt) - many diff service providers integrating together for single business

security

  • CASB (cloud access security broker) - sheriff of cloud computing env
  • CSA - nonprofit org promoting best practices related to cloud computing environments
  • CCM (cloud controls matrix) -

comparisons of security

on-premises sec - full control - on-site IT team - system check anytime, no need for phone calls - security change can take some time

cloud sec - no physical access - 3rd party may have access - cloud providers w large-scale security - users must follow sec best-practices - limited downtime - scalable sec options

comparisons for data storage

  • speed
  • money
  • security