.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

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?
 

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:

docker/powerdns/Dockerfile

@@ -1,12 +1,12 @@
-FROM buildpack-deps:bookworm-scm
+FROM buildpack-deps:stretch-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 9 Stretch)
+RUN echo "deb [arch=amd64] http://repo.powerdns.com/debian stretch-auth-43 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
 
@@ -16,4 +16,4 @@ ENTRYPOINT ["/entrypoint.sh"]
 
 EXPOSE 53
 
-CMD ["pdns_server", "--daemon=no"]
+CMD ["pdns_server", "--daemon=no"]

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
 }