just another client for using the DynDNS services
$ dyndns -h
dyndns 0.03
usage: dyndns [-d] [configfile]
dyndns -h
-d points your hostname to 127.0.0.1, regardless of configfile or
external ip address (useful before shutting down your external
interface)
configfile name of configfile
-h this help
see also http://www.ogris.de/dyndns/
If you do not specify a configuration file on the commandline, it will try to open its default configuration /etc/dyndns.conf. Because DynDNS requires at least a password, you have to provide a valid configuration file or dyndns will fail.
The following options are recognized in the config file:
| option | default value | description |
|---|---|---|
| ifconfig | /sbin/ifconfig | ifconfig is used to determine the ip address of the interface given by the option interface |
| interface | The interface is used to determine the ip address which will be used for your DynDNS entry | |
| ip | Instead of letting dyndns + ifconfig determine an ip address, you can also specify an address directly. This option is mutually exclusive with specifying an interface option in the configuration file. If you do neither specify an ip address nor an interface name, DynDNS will try to determine your public ip address | |
| dyndns | members.dyndns.org | the DynDNS webserver through which your ip address will be registered |
| update | /nic/update | script on the DynDNS webserver which will handle the registration |
| system | dyndns | DynDNS offers you multiple services besides the default registration of your dynamic ip address. |
| wildcard | NO | set to YES if you want to point *.your.domain to your ip address |
| backmx | NO | set to YES if the mx host should also registered as a backup mx host |
| hostname | hostname.domainname | the domainname you registered at DynDNS |
| mx | hostname | hostname or ip address which will be registered as the mx host of your domain |
| http_proxy | If you use an HTTP proxy for accessing the web, you should also specify its hostname or ip address here | |
| proxy_port | 3128 | The port number of your proxy server |
| user | name of the account dyndns is running under | your username at DynDNS |
| pass | your password for your DynDNS account | |
| logfile | /var/log/dyndns.log | location of logfile, a "-" (a single dash) denotes stdout |
| errfile | /var/log/dyndns.err | location of error logfile, a "-" (a single dash) denotes stderr |
Because there is a password stored in the configuration file, you should do a chmod 0600 /etc/dyndns.conf so no other user can read it.