This will make renewing certificates easier. If you normally don’t use or have an app that listens to port 80, it should be safe to leave the port open. This port forward must be active whenever you want to request a new certificate from Let’s Encrypt, typically every three months. This can be set up by accessing your router admin interface ( Site with port forwarding instructions per router). For the Let’s Encrypt set up we need to forward external port 80 to internal port 80 (http connections). Domains are validated by having certain data be accessible on your domain for Let’s Encrypt ( they describe it better themselves).Īssuming that your home is behind a router, the first thing to do is to set up port forwarding from your router to your computer that will run Let’s Encrypt. Let’s Encrypt will give you a free 90-day certificate if you pass their domain validation challenge. We will use this to acquire a certificate that can be used to encrypted our connection with Home Assistant. Let’s Encrypt is a free, automated, and open certificate authority (CA). If you’re on a Raspberry Pi, see ‘Pi’ in the category ‘Operating Systems’. After this check out their installation instructions to finish your installation of DuckDNS. For this, go to DuckDNS, log in with any of the supported login providers and add a domain. A dynamic DNS service works by having your home computer tell every 5 minutes what its IP is so that DuckDNS can make sure your domain name is set up correctly.įor this example we will assume our domain is .įirst step is to acquire and set up our domain name. This is a free dynamic DNS service that you can use to get a subdomain to point at your house. Root access, to write to default config, log and library directories and bind port 80. A machine running a Unix-ish OS that include Python 2.6 or 2.7 (Docker can be used).Direct connection to the internet or admin access to your router to set up port forwarding.The DuckDNS part of this tutorial has no requirements but there are a few requirements as of now to run the Let’s Encrypt client. This tutorial will take you through the steps to setup a dynamic DNS for your IP and allow trusted encrypted connection to it - for free using DuckDNS and Let’s Encrypt. After this you would be able to use Home Assistant from anywhere but there is one big red flag: no encryption. You have to set up port forwarding on your router and most likely add a dynamic DNS service to work around your ISP changing your IP. Please have a look at the new instructions.Įxposing your Home Assistant instance outside of your network always has been tricky. The instructions in this blog post are outdated.
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