General

Why can't I connect to my server?
Okay, you've setup a host in our Dynamic DNS or Custom DNS service. However, you can't connect to this host using a web browser, FTP client, remote access software, etc. What is the problem?
Routers and Port Forwarding
This article explains some general information about routers and how to use port forwarding to host services behind them.
Configuring Cisco Routers with HTTPS
These instructions allow customers to configure their Cisco devices to update using HTTPS.
Spring Server VPS Basics for Ubuntu/Debian
A quickstart guide to getting some common programs and applications setup on Spring Server VPS using Ubuntu or Debian.
Monitoring Best Practices
An overview of monitoring and some of the best current practices to effectively detect and notice problems.
Types of Hosting
There is a wide variety of web service hosting providers, each of which offer differing levels of customization, reliability, control and performance. ...
What is DNS?
The Domain Name System or Service (DNS) is a process that maps hostnames (how humans address servers) to IP addresses (how computers address servers).When you visted www.dyndns.org, your computer resolved that hostname as 63.208.196.100. This translation happens every time you...
How DDNS works
How dynamic DNS (DDNS) works and what it is
WebHops and Redirections
This article will help you choose the best redirect method for your situation.
Using inadyn With DynDNS.com Services
A lightweight, free and opensource client for Linux/Solaris/OpenBSD/Windows/Mac (no need for Perl, Python...), without bells and whistles (just command line)...
Using ddclient With DynDNS.com Services
Introduction ddclient is a Perl based client used to update DNS entries. This client works with all of our services. ddclient was originally written by Paul Burry and is now...
Why We Recommend Software Clients
In theory there is little difference between a "software" DDNS client and a DDNS client built into a router. In fact, some routers actually use one of the software clients by embedding it into the router. However, practice often differs...