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A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don't control.

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leng - a fast DNS server with adblocking, built for self-hosting (github.com)

submitted 1 year ago by [email protected] to c/[email protected]

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A few months ago I went on a quest for a DNS server and was dissatisfied with current maintained projects. They were either good at adblocking (Blocky, grimd...) or good at specifying custom DNS (CoreDNS...).

So I forked grimd and embarked on rewriting a good chunk of it for it to address my needs - the result is leng.

it is fast
it is small
it is easy
you can specify blocklists and it will fetch them for you
you can specify custom DNS records with proper zone file syntax (SRV records, etc)
it supports DNS-over-HTTPS so you can stay private
it is well-documented
can be deployed on systemd, docker, or Nix

I have been running it as my nameserver in a Nomad cluster since! I plan to keep maintaining and improving it, so feel free to give it a try if it also fulfils your needs

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[–] [email protected] 1 points 1 year ago (1 children)

Pihole reloading in my case is probably mostly slow because of the hardware. That signal functionality to reload is pretty neat, though I think I disagree with the config files being the only thing specifying the servers behaviour exactly being a big advantage. In an environment using infrastructure as code it would probably be better to define DNS over the generic nsupdate API (e.g. with ansible or other equivalent tools) than having to write custom code to reload some config files that have to be regenerated every time. But for smaller home setups both options are probably fine anyhow.

[–] [email protected] 2 points 1 year ago* (last edited 1 year ago)

I think there are two approaches to infrastructure as code (and even code in general):

as steps (ansible, web UI like pihole...)
declarative (nix, k8s, nomad, terraform...)

Both should scale (in my company we use templating a lot) but I find the latter easier to debug, because you can 'see' the expected end result. But it boils down to personal preference really.

As for your case, ideally you don't write custom code to generate your template (I agree with you in that it's tedious!), but you use the templating tool of your framework of choice. You can see this example, it's on grimd (what I forked leng from) and Nomad, but it might be useful to you.

P.S also added to the docs on the signal reloading here