Configure SNS

- [Instructor] Amazon Simple Notification Service, … also known as SNS, is a service that manages … the delivery of messages … to subscribing endpoints, or clients. … SNS is widely used with Amazon CloudWatch. … CloudWatch alarms can be configured to send notifications … to SNS topics, which will then be received … by subscribing endpoints. … SNS has two types of clients: publishers and subscribers, … also known as producers and consumers. … Publishers send message to an SNS topic, … which is a logical access point and communication channel. … Subscribers consume, or receive, the message … over one of the supported protocols … when they're subscribed to the topic. … The supported protocols include HTTP or HTTPS, … e-mail, SMS, Lambda, … and Amazon's Simple Queue Service. … To start using SNS, you create a topic … and control access to it by defining policies. … These policies determine which publishers and subscribers … can communicate with the topic. … A publisher sends messages to the topics …