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!

  • Meow.tar.gz
    link
    fedilink
    21 year ago

    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

      • Meow.tar.gz
        link
        fedilink
        11 year ago

        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!

        • operatorOP
          link
          fedilink
          11 year ago

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