Some documentation addition, unit file

diff --git a/README.md b/README.md
index 9b5f951568721eb5e5b582de4efaa6a28565d634..721fe2fee741f9e502c638fe007983db22322937 100644 (file)
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ remembered name.
 But it is not always a case in the world of NATs and VPNs.
 
 If machine always have public IP address, than using some dynamic DNS
-service may help (short of neccessity to use full domain name. But 
+service may help (short of necessity to use full domain name. But 
 ${HOME}/.ssh/config may help). But what if you log into your office
 workstation via corporate VPN, and want ssh back home?
 
@@ -26,5 +26,40 @@ to specified URL.
 
 See [manual page](dyngo.md) for more info.
 
+PRROTOCOL
+=========
+
+**dyngo** uses protocol compatible with dyndns.org, as described 
+pn [help.dyn.com](https://help.dyn.com/remote-access-api/perform-update/
+)
+As different dynamic DNS servers use different path components of URL,
+you should specify URL with path component (up to question mark) in 
+the *server* parameter of configuraton section.
+
+INSTALLATION
+============
+
+**dyngo** is simple script which doesn't require anything but
+python3 with standard library and **ip** utility from iproute (or
+iproute2 on Debian) package, which presents on every modern Linux
+system.
+
+I've even preferred to use
+[urllib](https://docs.python.org/3/library/urllib.request.html#module-urllib.request)
+to [requests](http://docs.python-requests.org/) to eliminate extra
+external dependency.
+
+So, you can just drop **dyngo** somewhere in your filesystem, say in 
+**/usr/local/sbin** and put config into */etc* But **dyngo** should run
+as a service, so you might want to use provided service file.
+
+**dyngo** should run as unprivileged user. But its configuration file
+should, readable for this user, contains somewhat sensitive information
+—  your dyndns passwords. So, don't use common account many untrusted
+code run as such as **nobody** or **www-data**. Better to create special
+user dyngo.
+
+There should be writable directory, writable for this user for
+persistent state database. By default it is /var/lib/dyngo.
 
 

diff --git a/dyngo.conf b/dyngo.conf
index d8c7abaca8b9ef89d165fa2e7ed0858c91b01b6f..da0d33288a89391cf9aa9453546d9ab70153e2d0 100644 (file)
--- a/dyngo.conf
+++ b/dyngo.conf
@@ -7,12 +7,12 @@
 interval=60
 database=/var/lib/dingo/dingo.db
 [public ipv6]
-hostname=antares.wagner.pp.ru
+hostname=antares.home.wagner.pp.ru
 network=::/0   
 server=http://www.wagner.pp.ru/cgi-bin/dyndns.cgi
 user=
 [postgrespro local]
 hostname=antares.local.vm 
 network=192.168.24.0/21
-server=http://fafnir.l.posgrespro.ru/dyndns
+server=http://fafnir.l.posgrespro.ru/cgi-bin?dyndns
 

diff --git a/dyngo.md b/dyngo.md
index d7ed659c9e95361b84b4d6185d2537b0c0f0597f..94e58ffabe5e19a820ec21c5015237ceee2ccf7a 100644 (file)
--- a/dyngo.md
+++ b/dyngo.md
@@ -40,6 +40,25 @@ Configuration file **dyngo.conf** is ini-style file. It contains section
 Names of server-description sections are arbitrary, but should be
 unique, because they are used as keys into persistent database.
 
-
+Parameters of **dyngo** section
+-------------------------------
+
+* interval - number of seconds between rescans of network interfaces
+* database - path to persistent state database
+* ca - path to trusted certificate store in openssl compatible format.
+* loglevel - minimum log message level which shoud to console
+
+Parameters of network section
+-----------------------------
+
+* **hostname** - fully qualified domain name of your host to register in DNS
+* **network** - network in *address*/*bits* notation which this host
+should belong to. If we see address from this network on one of our
+interfaces, we would send request to  corresponding server. If net is
+not privatte, but include private ranges, i.e. 0.0.0.0/0 or ::/0 private
+addresses are not considered part of it.
+* **server** - full url (without query string) of the dyndns web  handler.
+* **user** - user name for HTTP basic authentication
+* **password** - password for HTTP basic authentcircation
 
 

diff --git a/dyngo.service b/dyngo.service
new file mode 100644 (file)
index 0000000..5177ad1
--- /dev/null
+++ b/dyngo.service
@@ -0,0 +1,14 @@
+[Unit]
+Description=Dyngo multiple dyndns client
+After=network.target
+Documentation=https://github.com/vbwagner/dyngo
+
+[Service]
+Type=simple
+ExecStart=/usr/local/sbin/dyngo
+KillSignal=SIGTERM
+WorkingDirectory=~
+User=dyngo
+StandardError=journal
+[Install]
+WantedBy=multi-user.target