The point of purchasing a registered domain name and connecting it to a public DNS server is to make it findable from any Internet location. If you only ever want to use the domain name internally, you don't need to have a public domain name and you can make up your own internal domain name that is served by your local DNS. To avoid future conflicts with public domains, I'd probably use a TLD that doesn't exist (e.g. not .com or the like).
this post was submitted on 26 Nov 2023
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One reason is that a lot of mobile browsers won’t resolve local-only domains or even IP addresses unless you explicitly put https:// in front of it, every time. Instead they treat them as a search and you end up searching for your local domain in a search engine. It’s a pain in the ass and having a public, registered domain gets them to properly resolve even when your local services live on a non-public subdomain.
SSL is the main reason, this way your traffic is encrypted from snoopers on your land, and you don't get the warning messages about it not being secure.
You can use a sub domain from desec for free to do this.
A lot of people self host for themselves, family, friends, clients. It's easier to say "hey, login to x service at homelab.com"
If you do everything within the network, I guess you don't really need a domain
Lack of time or interest (or both) in: managing local DNS, using .home.arpa and running own CA.
It's tricky (especially running your own CA in a proper way), and not everyone wants to do it. Also, running it in a proper way it requires knowledge, and some people don't have it...
Actually, distribution of your root CA certificate is not that difficult.
NOTE: this addresses strictly OP's question about LAN-only access. External access or varying devices used to access is a completely different story.
Yes
Yes, because how will you acces wireguard? Whats your endpoint?
I mean its all fine if you have a static IP which never changes but that usually is not the case anymore. So you need a domainname to update. Also vpn.youlab.tld is esier to remember than 131.234.142.83
ddns also works and it’s free
Well ddns is just dns which get auto updated via helper script which you can do yourself on your own domain aswell. So yes Point still stands. And a domain which is yours might still be nicer than a bottom of the barrle subdomain. Of which you often also don't get unlimited
Can't get SSL certificates for an unregistered domain, my bitwarden instance is purely local (+VPN) but I still need SSL for it to work properly and I'm really not interested in managing my own CA and installing certificates on all my devices.
Sheepism.
Correct; You don't need a domain name.