mirror of
https://github.com/dnscrypt/dnscrypt-server-docker
synced 2024-11-22 19:42:03 +01:00
More complete instructions
That make me realize that all we really need is an interactive installation and update script.
This commit is contained in:
Frank Denis
parent
b091ce75da
commit
cf3af8b9c4
@ -37,7 +37,7 @@ ENV RUSTFLAGS "-C link-arg=-s"
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RUN apt-get update && apt-get install -qy --no-install-recommends $BUILD_DEPS && \
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curl -sSf https://sh.rustup.rs | bash -s -- -y --default-toolchain nightly && \
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export PATH="$HOME/.cargo/bin:$PATH" && \
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echo "Compiling encrypted-dns version 0.3.5" && \
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echo "Compiling encrypted-dns version 0.3.7" && \
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cargo install encrypted-dns && \
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mkdir -p /opt/encrypted-dns/sbin && \
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mv ~/.cargo/bin/encrypted-dns /opt/encrypted-dns/sbin/ && \
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270
README.md
270
README.md
@ -1,8 +1,7 @@
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[](https://travis-ci.org/DNSCrypt/dnscrypt-server-docker/builds/)
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[](https://dnscrypt.info)
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DNSCrypt server Docker image
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============================
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# DNSCrypt server Docker image
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Run your own caching, non-censoring, non-logging, DNSSEC-capable,
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[DNSCrypt](https://dnscrypt.info)-enabled DNS resolver virtually anywhere!
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@ -10,43 +9,56 @@ Run your own caching, non-censoring, non-logging, DNSSEC-capable,
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If you are already familiar with Docker, it shouldn't take more than 5 minutes
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to get your resolver up and running.
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Table of Contents
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=================
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Table of contents:
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- [DNSCrypt server Docker image](#dnscrypt-server-docker-image)
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- [Table of Contents](#table-of-contents)
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- [Quickstart](#quickstart)
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- [Example installation procedures](#example-installation-procedures)
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- [Installation](#installation)
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- [Updating the container](#updating-the-container)
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- [Anonymized DNS](#anonymized-dns)
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- [Prometheus metrics](#prometheus-metrics)
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- [TLS (including HTTPS and DoH) forwarding](#tls-including-https-and-doh-forwarding)
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- [Filtering](#filtering)
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- [Join the network](#join-the-network)
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- [Usage with Kubernetes](#usage-with-kubernetes)
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- [Customizing Unbound](#customizing-unbound)
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- [Serve custom DNS records on a local network](#serve-custom-dns-records-on-a-local-network)
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- [Changing the Unbound configuration file](#changing-the-unbound-configuration-file)
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- [Serving custom DNS records on a local network](#serving-custom-dns-records-on-a-local-network)
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- [Troubleshooting](#troubleshooting)
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- [Details](#details)
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- [Kubernetes](#kubernetes)
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- [Anonymized DNS](#anonymized-dns)
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- [TLS (including HTTPS and DoH) forwarding](#tls-including-https-and-doh-forwarding)
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- [Join the network](#join-the-network)
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Quickstart
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==========
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# Example installation procedures
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- [How to setup your own DNSCrypt server in less than 10 minutes on Scaleway](https://github.com/dnscrypt/dnscrypt-proxy/wiki/How-to-setup-your-own-DNSCrypt-server-in-less-than-10-minutes)
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- [DNSCrypt server with vultr.com](https://github.com/dnscrypt/dnscrypt-proxy/wiki/DNSCrypt-server-with-vultr.com)
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Installation
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============
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# Installation
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Think about a name. This is going to be part of your DNSCrypt provider name.
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If you are planning to make your resolver publicly accessible, this name will
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be public.
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It has to look like a domain name (`example.com`), but it doesn't have to be
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a registered domain.
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By convention, it has to look like a domain name (`example.com`), but it doesn't
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have to be an actual, registered domain.
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Let's pick `example.com` here.
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Download, create and initialize the container, once and for all:
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You probably need to perform the following steps as `root`.
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docker run --name=dnscrypt-server -p 443:443/udp -p 443:443/tcp --net=host \
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jedisct1/dnscrypt-server init -N example.com -E 192.168.1.1:443
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Create a directory where the server is going to store internal data such as secret keys.
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Here, we'll use `/etc/dnscrypt-server`:
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```sh
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mkdir -p /etc/dnscrypt-server/keys
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```
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Download, create and initialize the container:
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```sh
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docker run --name=dnscrypt-server -p 443:443/udp -p 443:443/tcp --net=host \
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--ulimit nofile=90000:90000 --restart=unless-stopped \
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-v /etc/dnscrypt-server/keys:/opt/encrypted-dns/etc/keys \
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jedisct1/dnscrypt-server init -N example.com -E 192.168.1.1:443
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```
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This will only accept connections via DNSCrypt on the standard port (443). Replace
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`192.168.1.1` with the actual external IP address (not the internal Docker one)
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@ -55,74 +67,128 @@ clients will connect to.
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`--net=host` provides the best network performance, but may have to be
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removed on some shared containers hosting services.
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`-v /etc/dnscrypt-server:/opt/encrypted-dns/etc/keys` means that the path `/opt/encrypted-dns/etc/keys`, internal to the container, is mapped to `/etc/dnscrypt-server/keys`, the directory we just created before. Do not change `/opt/encrypted-dns/etc/keys`. But if you created a directory in a different location, replace `/etc/dnscrypt-server/keys` accordingly in the command above.
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__Note:__ on MacOS, don't use `-v ...:...`. Remove that part from the command-line, as current versions of MacOS and Docker don't seem to work well with shared directories.
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The `init` command will print the DNS stamp of your server.
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Now, to start the whole stack:
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docker start dnscrypt-server
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```sh
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docker start dnscrypt-server
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```
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Done.
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Customizing Unbound
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===================
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You can verify that the server is running with:
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To add new configuration to Unbound, add files to the `/opt/unbound/etc/unbound/zones`
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directory. All files ending in `.conf` will be processed. In this manner, you
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can add any directives to the `server:` section of the Unbound configuration.
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```sh
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docker ps
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```
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Serve custom DNS records on a local network
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-------------------------------------------
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Note: if you previously created a container with the same name, and Docker complains that the name is already in use, remove it and try again:
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While Unbound is not a full authoritative name server, it supports resolving
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custom entries in a way that is serviceable on a small, private LAN. You can use
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unbound to resolve private hostnames such as `my-computer.example.com` within
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your LAN.
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```sh
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docker rm --force dnscrypt-server
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```
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To support such custom entries using this image, first map a volume to the zones
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directory. Add this to your `docker run` line:
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## Updating the container
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-v /myconfig/zones:/opt/unbound/etc/unbound/zones
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In order to install the latest version of the image, or change parameters, use the following steps:
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The whole command to create and initialize a container would look something like
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this:
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1. Update the image
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$ docker run --name=dnscrypt-server \
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-v /myconfig/zones:/opt/unbound/etc/unbound/zones \
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-p 443:443/udp -p 443:443/tcp --net=host \
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jedisct1/dnscrypt-server init -N example.com -E 192.168.1.1:443
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```sh
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docker pull jedisct1/dnscrypt-server
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```
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Create a new `.conf` file:
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2. Verify that the directory containing the keys actually has the keys (a `state` directory):
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$ touch /myconfig/zones/example.conf
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```sh
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ls -l /etc/dnscrypt-server/keys
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```
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Now, add one or more unbound directives to the file, such as:
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If you have some content here, skip to step 2.
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local-zone: "example.com." static
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local-data: "my-computer.example.com. IN A 10.0.0.1"
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local-data: "other-computer.example.com. IN A 10.0.0.2"
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Nothing here? Maybe you didn't use the `-v` option to map container files to a local directory when creating the container.
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In that case, copy the data directly from the container:
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Troubleshooting
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---------------
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```sh
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docker cp dnscrypt-server:/opt/encrypted-dns/etc/keys ~/keys
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```
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If Unbound doesn't like one of the newly added directives, it
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will probably not respond over the network. In that case, here are some commands
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to work out what is wrong:
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3. Stop the container:
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docker logs dnscrypt-server
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docker exec dnscrypt-server /opt/unbound/sbin/unbound-checkconf
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```sh
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docker stop dnscrypt-server
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docker ps # Check that it's not running
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```
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Details
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=======
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1. Use the `init` command again and start the new container:
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- A minimal Ubuntu Linux as a base image.
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- Caching resolver: [Unbound](https://www.unbound.net/), with DNSSEC, prefetching,
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and no logs. The number of threads and memory usage are automatically adjusted.
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Latest stable version, compiled from source. qname minimisation is enabled.
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- [encrypted-dns-server](https://github.com/jedisct1/dnscrypt-dns-server).
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Compiled from source.
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```sh
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docker run --name=dnscrypt-server -p 443:443/udp -p 443:443/tcp --net=host \
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--ulimit nofile=90000:90000 --restart=unless-stopped \
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-v /etc/dnscrypt-server/keys:/opt/encrypted-dns/etc/keys \
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jedisct1/dnscrypt-server init -N example.com -E 192.168.1.1:443
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# (adjust accordingly)
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Keys and certificates are automatically rotated every 8 hour.
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docker start dnscrypt-server
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```
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Kubernetes
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==========
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5. Done!
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Parameters differ from the ones used in the previous container.
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For example, if you originally didn't activate relaying
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but want to enable it, append `-A` to the command. Or if you want to enable
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metrics, append `-P 0.0.0.0:9100` to the end, and `-p 9100:9100/tcp` after
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`-p 443:443/tcp` (see below).
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## Anonymized DNS
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The server can be configured as a relay for the Anonymized DNSCrypt protocol by adding the `-A` switch to the `init` command.
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The relay DNS stamp will be printed right after the regular stamp.
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## Prometheus metrics
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Metrics are accessible inside the container as http://127.0.0.1:9100/metrics.
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They can be made accessible outside of the container by adding the `-M` option followed by the listening IP and port (for example: `-M 0.0.0.0:9100`).
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These metrics can be indexed with [Prometheus](https://prometheus.io/) and dashboards can be created with [Grafana](https://grafana.com/).
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## TLS (including HTTPS and DoH) forwarding
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If the DNS server is listening to port `443`, but you still want to have a web (or DoH) service accessible on that port, add the `-T` switch followed by the backend server IP and port to the `init` command (for example: `-T 10.0.0.1:4443`).
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The backend server must support the HTTP/2 protocol.
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## Filtering
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The server can be used block domains. For example, the `sfw.scaleway-fr` server uses that feature to provide a service that blocks websites possibly not suitable for children.
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In order to do so, create a directory that will contain the blacklists:
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```sh
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mkdir -p /etc/dnscrypt-server/lists
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```
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And put the list of domains to block in a file named `/etc/dnscrypt-server/lists/blacklist.txt`, one domain per line.
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Then, follow the upgrade procedure, adding the following option to the `docker run` command: `-v /etc/dnscrypt-server/lists:/opt/encrypted-dns/etc/lists`.
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# Join the network
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If you want to help against DNS centralization and surveillance,
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announce your server and/or relay on the list of [public DNS DoH and DNSCrypt servers](https://dnscrypt.info/public-servers).
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The best way to do so is to send a pull request to the
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[dnscrypt-resolvers](https://github.com/DNSCrypt/dnscrypt-resolvers/) repository.
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# Usage with Kubernetes
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Kubernetes configurations are located in the `kube` directory. Currently these assume
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a persistent disk named `dnscrypt-keys` on GCE. You will need to adjust the volumes
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@ -139,28 +205,70 @@ in minutes.
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To get your public key just view the logs for the `dnscrypt-init` job. The public
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IP for your server is merely the `dnscrypt` service address.
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Anonymized DNS
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==============
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# Customizing Unbound
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The server can be configured as a relay for the Anonymized DNSCrypt protocol by adding the `-A` switch to the `init` command.
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## Changing the Unbound configuration file
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TLS (including HTTPS and DoH) forwarding
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========================================
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To add new configuration to Unbound, add files to the `/opt/unbound/etc/unbound/zones`
|
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directory. All files ending in `.conf` will be processed. In this manner, you
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can add any directives to the `server:` section of the Unbound configuration.
|
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|
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If the DNS server is listening to port `443`, but you still want to have a web (or DoH) service accessible on that port, add the `-T` switch followed by the backend server IP and port to the `init` command (for example: `-T 10.0.0.1:4443`).
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## Serving custom DNS records on a local network
|
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|
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Prometheus metrics
|
||||
==================
|
||||
While Unbound is not a full authoritative name server, it supports resolving
|
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custom entries in a way that is serviceable on a small, private LAN. You can use
|
||||
unbound to resolve private hostnames such as `my-computer.example.com` within
|
||||
your LAN.
|
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|
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Metrics are accessible inside the container as http://127.0.0.1:9100/metrics.
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To support such custom entries using this image, first map a volume to the zones
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directory. Add this to your `docker run` line:
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They can be made accessible outside of the container by adding the `-M` option followed by the IP and port (for example: `-M 0.0.0.0:9100`).
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```text
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-v /myconfig/zones:/opt/unbound/etc/unbound/zones
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```
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Join the network
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================
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The whole command to create and initialize a container would look something like
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this:
|
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|
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If you want to help against DNS centralization and surveillance,
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announce your server on the list of [public DNS DoH and DNSCrypt servers](https://dnscrypt.info/public-servers)!
|
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```sh
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docker run --name=dnscrypt-server \
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-v /myconfig/zones:/opt/unbound/etc/unbound/zones \
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-p 443:443/udp -p 443:443/tcp --net=host \
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jedisct1/dnscrypt-server init -N example.com -E 192.168.1.1:443
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```
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The best way to do so is to send a pull request to the
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[dnscrypt-resolvers](https://github.com/DNSCrypt/dnscrypt-resolvers/) repository.
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Create a new `.conf` file:
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|
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```sh
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touch /myconfig/zones/example.conf
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```
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|
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Now, add one or more unbound directives to the file, such as:
|
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|
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```text
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local-zone: "example.com." static
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local-data: "my-computer.example.com. IN A 10.0.0.1"
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local-data: "other-computer.example.com. IN A 10.0.0.2"
|
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```
|
||||
|
||||
## Troubleshooting
|
||||
|
||||
If Unbound doesn't like one of the newly added directives, it
|
||||
will probably not respond over the network. In that case, here are some commands
|
||||
to work out what is wrong:
|
||||
|
||||
```sh
|
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docker logs dnscrypt-server
|
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docker exec dnscrypt-server /opt/unbound/sbin/unbound-checkconf
|
||||
```
|
||||
|
||||
# Details
|
||||
|
||||
- A minimal Ubuntu Linux as a base image.
|
||||
- Caching resolver: [Unbound](https://www.unbound.net/), with DNSSEC, prefetching,
|
||||
and no logs. The number of threads and memory usage are automatically adjusted.
|
||||
Latest stable version, compiled from source. qname minimisation is enabled.
|
||||
- [encrypted-dns-server](https://github.com/jedisct1/dnscrypt-dns-server).
|
||||
Compiled from source.
|
||||
|
||||
Keys and certificates are automatically rotated every 8 hour.
|
||||
|
||||
Loading…
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Block a user