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How can I add wildcards in DNS like www2.*.domain.com and www1.*.domain.com?

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linux-howto

http://serverfault.com – I have two servers which are load balanced. When I do the deployment I want to make sure the production users are not affected. Here is what I'm planning: Remove the webservers 2 (www2) from the load balancer. Deploy to the www2. do some quick testing (just over 100 mini sites all under one domain) Bring www2 back in to the load balancer then repeat for www1 Is there any way I can avoid manually adding the DNS entries for all my sub domains? Or, does anyone have a better idea of approaching this problem? (HowTos)