OpenDNS Updater is a client that works with the OpenDNS service. OpenDNS is a domain system name provider that is free and regarded as one of the fastest and more secure DNS suppliers online. It is often used to replace ISP DNS servers. OpenDNS Updater makes sure that your IP is always known by the OpenDNS servers so that your OpenDNS settings are applied to your current network. Without going into much technical detail, what OpenDNS Updater does is "talk" to the servers, relay your IP address and computer information and maintain your system DNS addresses so that you are sure that you are using OpenDNS. In my experience, I have tried setting OpenDNS in the past. It often was the case that after I added the DNS servers to my system settings, they just didn't work. My ISP DNS addresses were used instead. I thought that might had to do with a router misconfiguration. Whatever the case might have been, OpenDNS Updater fixed it. By using it on at least one machine on your network, you can make sure that you are using OpenDNS servers. Also, if you have any filtering options set with OpenDNS, the updater will make those work all the time.
If you have privacy concerns, OpenDNS Updater can be set so that it doesn't send any IP updates to the servers. It can also be made to run hidden from the options menu. I think that running this on your computer makes the OpenDNS server a lot better, and it also doubles as a dynamic address name, if you look under your OpenDNS control panel.
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