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Adding FQDN as option #522

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Adding FQDN as option #522

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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -48,7 +48,7 @@ To set up a Nebula network, you'll need:

#### 2. (Optional, but you really should..) At least one discovery node with a routable IP address, which we call a lighthouse.

Nebula lighthouses allow nodes to find each other, anywhere in the world. A lighthouse is the only node in a Nebula network whose IP should not change. Running a lighthouse requires very few compute resources, and you can easily use the least expensive option from a cloud hosting provider. If you're not sure which provider to use, a number of us have used $5/mo [DigitalOcean](https://digitalocean.com) droplets as lighthouses.
Nebula lighthouses allow nodes to find each other, anywhere in the world. A lighthouse is the only node in a Nebula network whose IP should not change (a FQDN can be used, but a nebula restart is required to resolve the latest DNS record). Running a lighthouse requires very few compute resources, and you can easily use the least expensive option from a cloud hosting provider. If you're not sure which provider to use, a number of us have used $5/mo [DigitalOcean](https://digitalocean.com) droplets as lighthouses.

Once you have launched an instance, ensure that Nebula udp traffic (default port udp/4242) can reach it over the internet.

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