Document dyndns tool and add example cron job

README.md

@@ -41,6 +41,7 @@ Maintenance (personal)
 
 Fun
 * Add option to define ADMIN_IP_ADDRESS (currently only used to ignore fail2ban jails)
+* Add dynamic dns tools in the tools directory.
 
 Original mailinabox content starts here:
 

tools/dyndns/cronjob.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+cd /opt/dyndns && ./dyndns.sh >> /var/log/dyndns.log 2>/dev/null

tools/dyndns/readme.txt

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+Files:
+- dyndns.sh
+  Dynamic DNS main script. There should be no need to edit it.
+- dyndns.domain
+  Fill with the top level domain of your MIAB box.
+- dyndns.dynlist
+  Fill with subdomains for which the dynamic dns IP should be updated. One per line.
+- dyndns.totp
+  Fill with TOTP key. Can be found in the MIAB sqlite database
+- dyndns.cfg
+  Fill with admin user and password
+- cronjob.sh
+  cronjob file. Edit where needed
+
+How to use:
+ - Put dyndns.sh, dyndns.domain, dyndns.dynlist, dyndns.totp and dyndns.cfg in a folder on your target system. E.g. /opt/dyndns
+ - Put the cronjob.sh in a cron folder. E.g. /etc/cron.daily
+ - Edit the files appropriately