other infrastructure concepts

cloud based security

centralizes and costs less

no hardware, no data center

third party hangles everything

one premises security

security burdern on client

data center security and infrastructure costs

it team on premises

onsite team that manages security

maintains uptime and availability

security changes take time

decentralized security

many locations, cloud providers, os

difficult to manage and protect

centralized securiyt

correlated alers

consolidatesd log file analysis

comprehensive system status and maintenance/patching

virtualization

run many different os on the same hardware

each applciation isntance needs its own os in what

virtualization

adds overhead an dcomplexity

application containerization

contaisn everything oyu need to run an applciation

code and depenedicens

standardizes unit of software

are containers isolated

yes self contained and apps cant interact with each other

virtualized vs containerized

internet of things

sensors

smart devices

weable tech

facility automation

cons of iot

weak security

supervisory control and data acquisition system (scada)

large scale multi site industrial control systems (ics)

what manages equipment in scada

pc

power gneration, regining, manufacturing equipment, facilities, industrila, energy logistics

what requires extensive segmentation so theres no access from outside

scada distrubuted contorl systems

real time os (rtos)

os with deterministic processing scheudle

no time to wait for other processes

industrial equipment, automobiles

military environments

security in rtos

extremly sensiste to security issues

non trivial systems

need to always be avialabl e

embedded systems

hardware and software designed for a specific function

traffic light controller,s digital watches, medical imaging systems

high availability (ha)

always on, always available

may include many different components working together

more expensive