ddns-scripts: implements usage of nsupdate to direct update DNS servers

* new service "bind-nsupdate" using nsupdate to directly updates a PowerDNS or Bind server via nsupdate.
  suggested by Jan Riechers (Pull #957) many thanks!
* updated tld-names.dat

Signed-off-by: Christian Schoenebeck <christian.schoenebeck@gmail.com>

net/ddns-scripts/files/tld_names.dat

@@ -6153,6 +6153,38 @@ store.st
 
 // su : http://en.wikipedia.org/wiki/.su
 su
+adygeya.su
+arkhangelsk.su
+balashov.su
+bashkiria.su
+bryansk.su
+dagestan.su
+grozny.su
+ivanovo.su
+kalmykia.su
+kaluga.su
+karelia.su
+khakassia.su
+krasnodar.su
+kurgan.su
+lenug.su
+mordovia.su
+msk.su
+murmansk.su
+nalchik.su
+nov.su
+obninsk.su
+penza.su
+pokrovsk.su
+sochi.su
+spb.su
+togliatti.su
+troitsk.su
+tula.su
+tuva.su
+vladikavkaz.su
+vladimir.su
+vologda.su
 
 // sv : http://www.svnet.org.sv/niveldos.pdf
 sv
@@ -9508,6 +9540,7 @@ zuerich
 
 // ===END ICANN DOMAINS===
 // ===BEGIN PRIVATE DOMAINS===
+// (Note: these are in alphabetical order by company name)
 
 // Amazon CloudFront : https://aws.amazon.com/cloudfront/
 // Submitted by Donavan Miller <donavanm@amazon.com> 2013-03-22
@@ -9941,6 +9974,10 @@ firebaseapp.com
 // Submitted by Jonathan Rudenberg <jonathan@flynn.io> 2014-07-12
 flynnhub.com
 
+// GDS : https://www.gov.uk/service-manual/operations/operating-servicegovuk-subdomains
+// Submitted by David Illsley <david.illsley@digital.cabinet-office.gov.uk> 2014-08-28
+service.gov.uk
+
 // GitHub, Inc.
 // Submitted by Ben Toews <btoews@github.com> 2014-02-06
 github.io
@@ -10052,17 +10089,19 @@ poznan.pl
 wroc.pl
 zakopane.pl
 
+// priv.at : http://www.nic.priv.at/
+// Submitted by registry <lendl@nic.at> 2008-06-09
+priv.at
+
 // Red Hat, Inc. OpenShift : https://openshift.redhat.com/
 // Submitted by Tim Kramer <tkramer@rhcloud.com> 2012-10-24
 rhcloud.com
 
-// GDS : https://www.gov.uk/service-manual/operations/operating-servicegovuk-subdomains
-// Submitted by David Illsley <david.illsley@digital.cabinet-office.gov.uk> 2014-08-28
-service.gov.uk
-
-// priv.at : http://www.nic.priv.at/
-// Submitted by registry <lendl@nic.at> 2008-06-09
-priv.at
+// SinaAppEngine : http://sae.sina.com.cn/
+// Submitted by SinaAppEngine <saesupport@sinacloud.com> 2015-02-02
+sinaapp.com
+vipsinaapp.com
+1kapp.com
 
 // TASK geographical domains (www.task.gda.pl/uslugi/dns)
 gda.pl

net/ddns-scripts/files/update_nsupdate.sh

@@ -0,0 +1,46 @@
+#
+#.Distributed under the terms of the GNU General Public License (GPL) version 2.0
+#
+# The script directly updates a PowerDNS (or maybe bind server) via nsupdate from bind-client package.
+#.based on github request #957 by Jan Riechers <de at r-jan dot de>
+#.2015 Christian Schoenebeck <christian dot schoenebeck at gmail dot com>
+#
+# This script is parsed by dynamic_dns_functions.sh inside send_update() function
+#
+# using following options from /etc/config/ddns
+# option username   - keyname 
+# option password   - shared secret (base64 encoded)
+# option domain     - full qualified domain to update
+# option dns_server - DNS server to update
+#
+# variable __IP already defined with the ip-address to use for update
+#
+local __TTL=600		#.preset DNS TTL (in seconds)
+local __RRTYPE __PW __TCP
+
+[ -x /usr/bin/nsupdate ] || write_log 14 "'nsupdate' not installed or not executable !"
+
+[ -z "$username" ]   && write_log 14 "Service section not configured correctly! Missing 'username'"
+[ -z "$password" ]   && write_log 14 "Service section not configured correctly! Missing 'password'"
+[ -z "$dns_server" ] && write_log 14 "Service section not configured correctly! Missing 'dns_server'"
+
+[ $use_ipv6 -ne 0 ] && __RRTYPE="AAAA" || __RRTYPE="A"
+[ $force_dnstcp -ne 0 ] && __TCP="-v" || __TCP=""
+
+# create command file
+cat >$DATFILE <<-EOF
+server $dns_server
+key $username $password
+update del $domain $__RRTYPE
+update add $domain $__TTL $__RRTYPE $__IP
+show
+send
+quit
+EOF
+
+/usr/bin/nsupdate -d $__TCP $DATFILE >$ERRFILE 2>&1
+
+# nsupdate always return success
+write_log 7 "nsupdate reports:\n$(cat $ERRFILE)"
+
+return 0