diff --git a/network/dns_update_via_ssh b/network/dns_update_via_ssh
index a754486..15987cc 100644
--- a/network/dns_update_via_ssh
+++ b/network/dns_update_via_ssh
@@ -1,2 +1,25 @@
+!/bin/sh
+# 
+# 2003      Nico Schottelius (nico-nsbin at schottelius.org)
+# 
+# This file is part of nsbin.
+#
+# nsbin is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+# 
+# nsbin is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with nsbin. If not, see <http://www.gnu.org/licenses/>.
+#
+# Idea: Run this on a host that has a dynamic IP address
+# Callback to a known host, that saves the IP address
+#
+
 ifconfig -a | ssh partyloewe@ns.schottelius.org "cat > IP"