.circleci/config.yml

@@ -1,57 +0,0 @@
-version: 2.1
-orbs:
-  docker: circleci/docker@1.5.0
-jobs:
-  test:
-    docker:
-      - image: circleci/golang:1.16
-    working_directory: /go/src/github.com/pboehm/ddns
-    steps:
-      - checkout
-      - run: go get -v -t -d ./...
-      - run: go test -v ./...
-
-  docker-build:
-    executor: docker/docker
-    steps:
-      - setup_remote_docker
-      - checkout
-      - docker/build:
-          image: pboehm/ddns
-          dockerfile: docker/ddns/Dockerfile
-
-  docker-build-and-push:
-    executor: docker/docker
-    steps:
-      - setup_remote_docker
-      - checkout
-      - docker/check
-      - docker/build:
-          image: pboehm/ddns
-          dockerfile: docker/ddns/Dockerfile
-          tag: $CIRCLE_SHA1,latest
-      - docker/push:
-          image: pboehm/ddns
-          tag: $CIRCLE_SHA1,latest
-
-workflows:
-  commit:
-    jobs:
-      - test:
-          filters:  # required since `docker-XXXX` have tag filters AND require `test`
-            tags:
-              only: /.*/
-
-      - docker-build:
-          requires:
-            - test
-          filters:
-            branches:
-              ignore: master
-
-      - docker-build-and-push:
-          requires:
-            - test
-          filters:
-            branches:
-              only: master

.gitignore

@@ -2,5 +2,3 @@
 /docker/docker-compose.*.yml
 /ddns
 dump.rdb
-/docker/.caddy_mount/
-/docker/.redis_mount/

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2020 Philipp Böhm
+Copyright (c) 2018 Philipp Böhm
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -1,28 +1,23 @@
 # `ddns` - Dynamic DNS
 
-[![CircleCI](https://img.shields.io/circleci/build/github/pboehm/ddns?style=flat)](https://circleci.com/github/pboehm/ddns)
-[![Docker Image Size (tag)](https://img.shields.io/docker/image-size/pboehm/ddns/latest?logo=Docker)](https://hub.docker.com/r/pboehm/ddns)
-[![Docker Pulls](https://img.shields.io/docker/pulls/pboehm/ddns?logo=Docker)](https://hub.docker.com/r/pboehm/ddns)
-[![GitHub](https://img.shields.io/github/license/pboehm/ddns?style=flat)](https://github.com/pboehm/ddns)
+A self-hosted Dynamic DNS solution similar to DynDNS or NO-IP.
 
+You can use a hosted version at [ddns.pboehm.de](https://ddns.pboehm.de/) where you can register a
+host under the `d.pboehm.de` domain (e.g `test.d.pboehm.de`).
 
-A self-hosted Dynamic DNS solution similar to DynDNS or NO-IP based on the
-[PowerDNS Remote Backend](https://doc.powerdns.com/md/authoritative/backend-remote/).
+**Recent Changes**
 
-<img src="screenshot.png" alt="screenshot" width="500"/>
+`ddns` has been fully restructured and now uses the PowerDNS
+[Remote Backend](https://doc.powerdns.com/md/authoritative/backend-remote/) instead
+of the [Pipe Backend](https://doc.powerdns.com/md/authoritative/backend-pipe/), which
+is far easier to deploy. It now serves both the frontend and the backend over HTTP using different ports.
 
+The old `ddns` source code can be found at the [legacy](https://github.com/pboehm/ddns/tree/legacy) tag.
 
-## ⚠️⚠️⚠️ Note regarding hosted version at `ddns.pboehm.de`
+**Security Notice**
 
-The hosted `ddns` service with custom hosts under the `d.pboehm.de` domain (e.g `test.d.pboehm.de`) is not available
-anymore! I did not use this service for quite some time and recently there were some issues which resulted in downtime
-and expiration of all registered hosts.
-
-### Alternatives
-
-There is at least one other hosted version of `pboehm/ddns` that
-[can be found via Google](https://www.google.com/search?q=pboehm%2Fddns+%22DDNS+is+a+project+that+lets+you+host+a+Dynamic+DNS+Service%2C+similar+to+DynDNS%2FNO-IP%2C+on+your+own+servers.%22)
-or you can host it yourself as described below.
+Please make sure that you use the latest available version of `ddns`, as it contains an important security
+fix for [an issue introduced in the rework](https://github.com/pboehm/ddns/issues/8).
 
 ## How can I update my IP if it changes?
 
@@ -57,6 +52,15 @@ you have to create the following two DNS records:
 
 ### `ddns`-Setup
 
+Setting up `ddns` was kind of a hassle in the legacy version, because there are multiple components that have to
+work together:
+
+* `ddns` that runs the frontend and provides an API compatible with the
+  [Remote Backend](https://doc.powerdns.com/md/authoritative/backend-remote/)
+* Redis as storage backend for `ddns`
+* PowerDNS as DNS server, which uses the `ddns` backend API on Port `8053`
+* A web server that makes the `ddns` frontend accessible to the Internet through HTTPS
+
 The setup is now automated using [docker-compose](https://docs.docker.com/compose/) and only some customization has
 to be made in a `docker-compose.override.yml` file
 (a [sample](./docker/docker-compose.override.yml.sample) is available here).
@@ -77,6 +81,8 @@ Please adjust the settings in `docker-compose.override.yml` marked with the `#<<
 * adjust the domain part in lines marked with `# <<< ADJUST DOMAIN` according to your DNS-Setup
 * insert your email address in lines marked with `# <<< INSERT EMAIL` which is required for getting certificates
   from Lets Encrypt
+* adjust the path component before the `:` in lines marked with `# <<< ADJUST LOCAL PATH` if the shown path
+  does not meet your requirements
 
 Finally execute the following `docker-compose` command, which creates 4 containers in detached mode which are also
 started automatically after reboot. For updating an existing installation use the same command because it automatically

backend/backend.go

@@ -51,13 +51,7 @@ func (b *Backend) Run() error {
 
 	r.GET("/dnsapi/getDomainMetadata/:name/:kind", func(c *gin.Context) {
 		c.JSON(200, gin.H{
-			"result": []string{"0"},
-		})
-	})
-
-	r.GET("/dnsapi/getAllDomainMetadata/:name", func(c *gin.Context) {
-		c.JSON(200, gin.H{
-			"result": gin.H{"PRESIGNED": []string{"0"}},
+			"result": false,
 		})
 	})
 

docker/ddns/Dockerfile

@@ -9,10 +9,5 @@ RUN GO111MODULE=on go get -d -v ./...
 RUN GO111MODULE=on go install -v ./...
 
 ENV GIN_MODE release
-ENV DDNS_EXPIRATION_DAYS 10
 
-CMD /go/bin/ddns \
-    --domain=${DDNS_DOMAIN} \
-    --soa_fqdn=${DDNS_SOA_DOMAIN} \
-    --redis=${DDNS_REDIS_HOST} \
-    --expiration-days=${DDNS_EXPIRATION_DAYS}
+CMD /go/bin/ddns --domain=${DDNS_DOMAIN} --soa_fqdn=${DDNS_SOA_DOMAIN} --redis=${DDNS_REDIS_HOST}

docker/docker-compose.override.yml.sample

@@ -5,7 +5,6 @@ services:
     environment:
       DDNS_DOMAIN: d.example.net                      # <<< ADJUST DOMAIN
       DDNS_SOA_DOMAIN: ddns.example.net               # <<< ADJUST DOMAIN
-      DDNS_EXPIRATION_DAYS: 10
 
   powerdns:
     ports:
@@ -13,7 +12,7 @@ services:
 
   redis:
     volumes:
-      - "${PWD}/.redis_mount:/data"
+      - "/root/ddns-redis:/data"                      # <<< ADJUST LOCAL PATH
 
   caddy:
     restart: unless-stopped
@@ -21,13 +20,12 @@ services:
     depends_on:
       - ddns
     environment:
-      ACME_AGREE: "true"
       DDNS_FRONTEND_HOST: ddns:8080
       DDNS_CADDY_DOMAIN: ddns.example.net             # <<< ADJUST DOMAIN
       DDNS_CADDY_TLS_EMAIL: changeme@example.net      # <<< INSERT EMAIL
     volumes:
       - "${PWD}/caddy/Caddyfile:/etc/Caddyfile"
-      - "${PWD}/.caddy_mount:/root/.caddy"
+      - "/root/ddns-caddy:/root/.caddy"               # <<< ADJUST LOCAL PATH
     ports:
       - "80:80"
       - "443:443"

docker/powerdns/Dockerfile

@@ -1,12 +1,12 @@
-FROM buildpack-deps:bookworm-scm
+FROM buildpack-deps:jessie-scm
 
-# the setup procedure according to https://repo.powerdns.com/ (Debian 12 Bookworm)
-RUN echo "deb [arch=amd64] http://repo.powerdns.com/debian bookworm-auth-49 main" > /etc/apt/sources.list.d/pdns.list \
-        && echo "Package: pdns-*\nPin: origin repo.powerdns.com\nPin-Priority: 600\n" >> /etc/apt/preferences.d/pdns \
-        && curl https://repo.powerdns.com/FD380FBB-pub.asc | apt-key add - \
-        && apt-get -y update \
-        && apt-get install -y pdns-server pdns-backend-remote \
-        && rm -rf /var/lib/apt/lists/*
+# the setup procedure according to https://repo.powerdns.com/ (Debian 8 Jessie)
+RUN echo "deb http://repo.powerdns.com/debian jessie-auth-41 main" > /etc/apt/sources.list.d/pdns.list \
+	&& echo "Package: pdns-*\nPin: origin repo.powerdns.com\nPin-Priority: 600\n" >> /etc/apt/preferences.d/pdns \
+	&& curl https://repo.powerdns.com/FD380FBB-pub.asc | apt-key add - \
+	&& apt-get -y update \
+	&& apt-get install -y pdns-server pdns-backend-remote \
+	&& rm -rf /var/lib/apt/lists/*
 
 COPY pdns.conf /etc/powerdns/pdns.conf
 

docker/powerdns/pdns.conf

@@ -1,3 +1,4 @@
+disable-tcp=yes
 cache-ttl=0
 loglevel=7
 log-dns-details=yes

frontend/frontend.go

@@ -153,7 +153,7 @@ func buildTemplate() *template.Template {
 }
 
 func isValidHostname(host string) (string, bool) {
-	valid, _ := regexp.Match("^([a-zA-Z0-9]([a-zA-Z0-9\\-]{0,61}[a-zA-Z0-9])?)$", []byte(host))
+	valid, _ := regexp.Match("^[a-z0-9]{1,32}$", []byte(host))
 
 	return host, valid
 }

frontend/template.go

@@ -139,6 +139,10 @@ const indexTemplate string = `
 
             <div id="command_output"></div>
 
+            <div class="footer">
+                <p>&copy; Philipp Böhm</p>
+            </div>
+
         </div> <!-- /container -->
 
         <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->