Added installing notes to README

README.md

@@ -11,10 +11,99 @@ You can use a hosted version at [ddns.pboehm.org](http://ddns.pboehm.org/) where
 
 An API similar to DynDNS/NO-IP hasn't been implemented yet.
 
-## Requirements for self-hosting
+## Self-Hosting
+
+### Requirements
 
 * A custom domain where the registrar allows NS-Records for subdomains
 * A global accessible Server running an OS which is supported by the tools listed below
 * A running [Redis](http://redis.io) instance for data storage
 * An installation of [PowerDNS](https://www.powerdns.com/) with the Pipe-Backend included
 * [Go](http://golang.org/) 1.3
+
+### Installation
+
+The following instructions are valid for Ubuntu/Debian. Some files/packages
+could have other names/locations, please search for it.
+
+You should have a working Go environment (correct `$GOPATH`).
+
+    $ go version # check that you have go 1.3 installed
+    go version go1.3 linux/amd64
+
+Then install `ddns` via:
+
+    $ go get github.com/pboehm/ddns
+    $ ls $GOPATH/bin/ddns # the displayed path will be used later
+    /home/user/gocode/bin/ddns
+
+#### Backend
+
+Install `pdns` and `redis-server`:
+
+    $ sudo apt-get install redis-server pdns-server pdns-backend-pipe
+
+Both services should start at boot automatically. You should open `udp/53` and
+`tcp/53` on your Firewall so that `pdns` can be be used from outside of your
+host.
+
+    $ sudo vim /etc/powerdns/pdns.d/pipe.conf
+
+`pipe.conf` should have the following content. Please adjust the path of `ddns`
+and the supplied domain name `--domain=sub.example.com`:
+
+    launch=pipe
+    pipebackend-abi-version=1
+    pipe-command=/home/user/gocode/bin/ddns --domain=sub.example.com backend
+
+Then restart `pdns`:
+
+    $ sudo service pdns restart
+
+#### Frontend
+
+`ddns` includes a webservice which is used for creating new hosts and updating
+ip addresses. I prefer using `nginx` as a reverse proxy and not running `ddns`
+on port 80. As a process manager, I prefer using `supervisord` so it is
+described here.
+
+    $ sudo apt-get install nginx supervisor
+
+Create a supervisor config file for ddns:
+
+    $ sudo vim /etc/supervisor/conf.d/ddns.conf
+    $ cat /etc/supervisor/conf.d/ddns.conf
+    [program:ddns]
+    directory = /tmp/
+    user = user
+    command = /home/user/gocode/bin/ddns --domain=sub.example.com web
+    autostart = True
+    autorestart = True
+    redirect_stderr = True
+
+Restart the `supervisor` daemon and `ddns` listens on Port 8080 (can be
+changed by adding `--listen=:1234`).
+
+    $ sudo service supervisor restart
+
+Now you have to add a nginx virtual host for `ddns`:
+
+    $ sudo vim /etc/nginx/sites-enabled/default
+    $ cat /etc/nginx/sites-enabled/default
+    server {
+        listen   80;
+        server_name  ddns.example.com;
+
+        location / {
+            proxy_pass http://127.0.0.1:8080;
+            proxy_set_header    Host            $host;
+            proxy_set_header    X-Real-IP       $remote_addr;
+            proxy_set_header    X-Forwarded-for $proxy_add_x_forwarded_for;
+            proxy_connect_timeout 300;
+        }
+    }
+
+Please adjust the `server_name` with a valid FQDN. Now we only have to restart
+`nginx`:
+
+    $ sudo service nginx restart