Category: Technical How-to

Note: This blog covers AWS IoT Greengrass version 1, which has stopped receiving updates, fixes, and security patches since June 30, 2023. AWS IoT Greengrass Version 2 is a major update to the core software, APIs, and console that improves upon V1 with modular applications, better fleet device deployments, and expanded platform support. Learn more […]

When managing Internet of Things (IoT) devices, it can be challenging to maintain or improve device functionality through upgrades to device software and configuration. The complexity is due to a number of factors: the number of devices, multiple versions of the devices, different software versions based on device attributes and state, inability to discover and […]

4/15/21 AWS IoT Editorial Team Update:  Since the time of this blog post, we have announced AWS IoT Core for LoRaWAN. AWS IoT Core for LoRaWAN is a fully-managed feature that allows you to connect and manage wireless devices that use LoRaWAN connectivity with the AWS Cloud. Using AWS IoT Core for LoRaWAN, enterprises can setup […]

AWS IoT Core supports certificate-based mutual authentication, custom authorizers, and Amazon Cognito Identity as way to authenticate requests to the AWS IoT device gateway. Amazon Cognito User Pools was made generally available last year. It allows customers to easily add user sign up and sign in to mobile and web apps. You can use Cognito […]

We often see security breaches depicted in media and popular culture. In the HBO series Silicon Valley, a compromised refrigerator is used by hacker Gilfoyle to run a malicious piece of software. The reality of connected devices isn’t very different from this fictitious scenario. The compromised refrigerator can send consumer data to unauthorized endpoints. Connected […]

NOTE: This blog post describes important public key infrastructure (PKI) issues related to browser and mobile application connectivity to AWS IoT Core. For information about public key certificates and TLS, see Chain of Trust and Certificate Authorities in High Performance Browser Networking. Overview Google, Apple, and Mozilla have announced that, starting October, 2018, they will […]

In an earlier Using Over-the-Air Updates with AWS IoT Device Management blog post, we showed you how to create a simple AWS IoT snapshot job and track its progress. In this post, we will show you step-by-step how to configure and create an AWS IoT continuous job. A continuous job is a long running job […]

Update: AWS IoT Core has simplified the connection process—devices no longer need to implement the Transport Layer Security (TLS) Application Layer Protocol Negotiation (ALPN) extension to determine authentication type and protocol. This means that client devices can connect to AWS IoT Core with MQTT over port 443 without implementing ALPN. For additional details, please refer […]

In an earlier blog post about just-in-time registration of device certificates, we discussed how just-in-time registration (JITR) can be used to activate device certificates and attach policies to the certificates immediately after the device is auto-registered. JITR triggers a registration event. You must create an AWS IoT Core rule to listen for the registration event […]

In this blog post, we will simulate a common business scenario to show you how to use the group policy feature in AWS IoT Device Management. Specifically, we will describe: How to create a hierarchical group structure and assign your IoT devices to different groups. How to publish messages to different IoT devices based on […]