Dynamic DNS (DDNS) Update Tool

Document revision 20-Aug-2002
This document applies to the MikroTik RouterOS V2.6

Overview

Dynamic DNS Update Tool gives a way to keep domain name pointing to dynamic ip address. It works by sending domain name system update request to name server, which has a zone to be updated. Secure DNS updates are also supported. Dynamic DNS Update protocol is described in RFC2136, RFC3007 and related documents

Contents of the Manual

The following topics are covered in this manual:

Installation

The Dynamic DNS Update feature is included in the ddns package. The package file ddns-2.6.x.npk can be downloaded from MikroTik’s web page www.mikrotik.com. To install the package, please upload it to the router with ftp and reboot.

Hardware Resource Usage

The feature uses a minimum of resources.

Dynamic DNS Update Description

Dynamic DNS Update is a tool that should be manually run to update dynamic DNS server

Note that you have to have dns server that supports dns updates and that it is properly configured

Dynamic DNS Update tool can be accessed with the /tool dns-update command: 

[admin@MikroTik] tool> dns-update

     address
  dns-server
         key
    key-name
        name
         ttl
        zone
[admin@MikroTik] tool> dns-update

Descriptions of arguments:

address - defines IP address associated with the domain name
dns-server - DNS server to send update to
key - authorization key (password of a kind) to access the server
key-name - authorization key name (username of a kind) to access the server
name - name to attach with the IP address
ttl - time to live for the item (in seconds)
zone - DNS zone where to update the domain name in

Dynamic DNS Update Example

[admin@MikroTik] tool> dns-update address=12.23.34.45 dns-server=23.34.45.56 \
\... name=mydomain zone=myzone.com ttl=3600 key-name=dns-update-key key=sviests

Additional Resources

Links to Dynamic DNS Update documentation:

http://www.zoneedit.com/doc/rfc/
http://www.faqs.org/rfcs/rfc2136.html

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