Dave N5UP

Dave N5UP
Dave monitoring progress during the server migration June 17, 2010

Dell R710 server

Dell R710 server
A technician at our data center adjusts a rack of Dell R710 servers

Sunday, June 6, 2010

Those pesky domain names

When I change a domain name such as www.QSLCard.com over to our new IP address on the new servers, the change does not happen instantly. For several hours, or maybe even a day or more, your browser will still continue to fetch the page from the old server. The length of time is not under my control at all, but rather under the control of your Internet Service Provider (ISP).

This is making it a bit tricky to design a changeover strategy that will minimize downtime. I have set our DNS servers to ask your ISP to update its IP addresses every 10 minutes, but there is no guarantee that they will comply.

So AFTER WE ANNOUNCE THE CHANGEOVER IS BEING MADE, there will probably be a period of several hours during which your logger will not be able to connect with the eQSL server to upload ADIF files, or your email client won't be able to send us email, or your browser may be redirected to an IP address instead of the eQSL domain name.

Don't worry, this will all work itself out within a matter of usually no more than 72 hours, and everything will be back to normal.

Testing is going well so far, and we may be able to start the changeover sometime this week. Stay tuned!

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