add systemd service

README.md

@@ -8,12 +8,30 @@ So far it has modules for these domain provider APIs:
 - [dyn.com API](https://help.dyn.com/remote-access-api/perform-update/) (untested)
 
 # Dependencies
+- iproute2
 - curl
 - miniupnpc (optional, see the Configuration section)
+- bind (optional, when using the http.net DNS API)
 
 # Installation
+There's no automated installation yet. As an example we install the two scripts `homeserverdns-daemon` and `homeserverdns-update` to `/usr/bin` and the configuration file to `/etc`.
 
-TBD
+```shell
+sudo cp homeserverdns-daemon homeserverdns-update /usr/bin
+sudo cp homeserverdns.cfg /etc
+```
+
+If we want to use systemd to control homeserverdns, we need to install the service file `homeserverdns.service`. We have to make sure that the path of the config file is correct in that file. 
+
+```shell
+sudo cp homeserverdns.service /etc/systemd/system
+```
+
+Once the configuration is done we can start homeserverdns using
+
+```shell
+sudo systemctl start homeserverdns
+```
 
 # Configuration
 All configuration options are described in more detail in `homeserverdns.cfg`. This is only an overview on the most important options.

homeserverdns.service

@@ -0,0 +1,9 @@
+[Unit]
+After=network.target
+Description=DNS updater for home servers
+
+[Service]
+ExecStart=/usr/bin/env bash -c 'homeserverdns-daemon /etc/homeserverdns.cfg'
+Group=nobody
+User=nobody
+Type=simple