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Inadyn is a simple and small dynamic DNS (DDNS) client written in C.
DDNS is a popular service for Internet users with dynamically allocated
IP addresses.
If your ISP provides you with a DHCP or PPPoE/PPPoA connection you risk
losing your IP address every time you reconnect, or in DHCP even when
the lease is renegotiated.
By using a DDNS client such as inadyn you can register an Internet name
at certain providers that the DDNS client updates, periodically and/or
on demand when your IP changes.
Inadyn can maintain multiple host names with the same IP address, and
has a web based IP detection which runs well behind a NAT router.
Common DDNS service providers supported by inadyn:
* http://www.dyndns.org
* http://freedns.afraid.org
* http://www.zoneedit.com
* http://www.no-ip.com
* http://www.easydns.com
* http://www.tzo.com
* http://www.3322.org
* http://www.dnsomatic.com
* http://www.tunnelbroker.net
* http://dns.he.net/
* http://www.dynsip.org
* http://www.sitelutions.com
* http://www.dnsexit.com
* http://www.changeip.com
Some of these services are free of charge for non-commercial use, others
take a small fee, but also provide more domains to choose from.
Multiple Accounts Support
=========================
Inadyn supports updating several DDNS servers, several accounts even on
different DDNS providers. The following example config file illustrates
how it can be used.
Feature is courtesy of [Christian Eyrich](http://eyrich-net.org/programmiertes.html)
background
verbose 1
logfile /var/log/inadyn.log
pidfile /var/run/inadyn.pid
system default@dyndns.org
username yxxx
password xyxx
period 300
alias yyyy
alias yyyy
system default@no-ip.com
username xxyx
password xxxy
period 300
alias yyyy
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