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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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ELI5 Cloudflare Tunnel (kbin.social)

submitted 1 year ago by operator@kbin.social to c/selfhosted@lemmy.world

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So everyone is talking about cloudflare tunnels and I decided to give it a shot.

However, I find the learning curve quite hard and would really appreciate a short introduction into how they work and how do I set them up…

In my current infrastructure I am running a reverse proxy with SSL and Authentik, but nothing is exposed outside. I access my network via a VPN but would like to try out and consider CF. Might be easier for the family.

How does authentication work? Is it really a secure way to expose internal services?

Thanks!

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[–] operator@kbin.social 2 points 1 year ago (2 children)

That be amazing! I am currently not using anything (took down my homelab a while back) and planning on completely starting over fresh now.

I am most likely going with unbound! So if you could, that be great!

[–] ablackcatstail@lemmy.goblackcat.com 2 points 1 year ago (1 children)

Here is a sample configuration that should work for you:

server:
        interface: 127.0.0.1
        interface: 192.168.1.1
        do-udp: yes
        do-tcp: yes
        do-not-query-localhost: no
        verbosity: 1
        log-queries: yes

        access-control: 0.0.0.0/0 refuse
        access-control-view: 127.0.0.0/8 example
        access-control-view: 192.168.1.0/24 example

        hide-identity: yes
        hide-version: yes
        tcp-upstream: yes

remote-control:
        control-enable: yes
        control-interface: /var/run/unbound.sock

view:
        name: "example"
        local-zone: "example.com." inform
        local-data: "example.com. IN A 192.168.1.2"
        local-data: "www IN CNAME example.com."
        local-data: "another.example.com. IN A 192.168.1.3"

forward-zone:
        name: "."
        forward-addr: 8.8.8.8
        forward-addr: 8.8.4.4

What makes the split-brain DNS work is if the request for resolution comes from the localhost or from inside your network, it will first go to the view section to see if there is any pertinent local data. So if you do a query from your home network, on say, example.com, it will return your internal IP address which in this case is 192.168.1.2

[–] operator@kbin.social 2 points 1 year ago (1 children)

Appreciate it!

[–] ablackcatstail@lemmy.goblackcat.com 1 points 1 year ago (1 children)

Sure! Let me know how it goes. If you need to do something more complex for internal DNS records for more than just A records, then look at the unbound.conf man page for stub zones. If you need something even more flexible than stub zones, you can use Unbound as a full authoritative DNS server with auth-zones. As far as I know auth-zones can even do zone transfers AXFR style which is cool!

[–] operator@kbin.social 1 points 1 year ago

That’s becoming interesting once I’m setting up a slaves for failover & local proximity ^^ looking forward to deep diving into it

[–] ablackcatstail@lemmy.goblackcat.com 1 points 1 year ago

Unbound is simple to configure. I will send you mine when I get home from work. You could probably easily adapt it.