Configuring DynDNS.org in Linux via DDClient
Most Internet service providers do not give you static
IP addresses (without paying more for them), which makes
hosting your own Server (Games, FTP, Web) a pain in the
butt. There is however a means to create a relatively static
looking connection by using a the wonderful service provided
by DynDNS. They allow you to get a subdomain off one of
their many domains that will automatically forward to your
dynamic IP address.
You have several options on how you can keep your IP up
to date with their service. You can manually update the
IP on their website or you can use one of the many clients
on their website. This article is geared towards setting
up a Linux client, however there are many easy to setup
windows clients you can download from them also, we just
won't be talking about them within the scope of this article.
The first thing you must do is setup a Free account at
DynDNS.org. You are allowed to create up to five free hosts
without paying a single cent! If you decide you need more,
it's only $9.95/yr for up to twenty!
After you have signed up with their service, you must create
a DynamicDNS on their website. Next, go to the clients section
and download "ddclient" (by: Paul Burry).
Install the DDClient as per the install instructions included
in your download.
Once you have installed the program you should have a configuration
file located in your /etc directory. Below is a copy of
my ddclient.conf and we will go over it step by step.
Start of /etc/ddclient.conf:
daemon=900Update your ip address with the server at this
time interval.
syslog=noDo you want this update logged to your syslog?
pid=/var/run/ddclient.pidThe pid of your ddclient, you
don't need to change this.
use=web, web=checkip.dyndns.org/, web-skip='IP Address'This
line checks your external IP address against the DynDNS
website. If you have a router on your internet connection,
to share it to multiple computers, there is probably a good
chance that your individual pc's are using 192.168.x.x ip
addresses. We need your IP address that the world can see,
which is the one your router is actually assigned.
protocol=dyndns2This is just the protocol setup by DynDns
to transfer this data to their server.
server=members.dyndns.orgThis is the server that you are
going to connect to, to update your information.
login=YourUsernameYour username you signed up with, on
the DynDNS.org website.
password=YourPasswordThis is your clear text password.
I highly suggest that you set this password to something
you never use anywhere else.
mx=YourSite.homeip.netThis is the name of the Primary site
on DynDNS you setup.
server=members.dyndns.org, protocol=dyndns2 YourSite-1.homeip.netYourSite-2.homeip.netYourSite-3.homeip.net
You can send multiple updates all at one time. You can
type as many as you like, one per line, and it will update
the ip address all at once for your sites.
End of /etc/ddclient.conf
After the configuration file has been updated with your
information and saved, you must restart the ddclient. If
you setup the software properly according to the install
information you should be able to use the following commands:
/etc/init.d/ddclient stop/etc/init.d/ddclient start/etc/init.d/ddclient
restart
Happy Hosting!
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