How to test if DNS information has propagated?

Posted by Andrew on Server Fault See other posts from Server Fault or by Andrew
Published on 2012-04-28T00:59:46Z Indexed on 2014/08/19 16:22 UTC
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I set up a new DNS entry for one of my subdomains (I haven't set up any Apache virtual hosts or anything like that yet). How can I check that the DNS information has propagated?

I assumed that I could simply ping my.subdomain.com and assume that if it could resolve, it would show the IP address I specified in the A record. However, I don't know if I am assuming correctly. What is the best way to check this information?

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How to test if DNS information has propagated?

dns

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Master/Slave DNS setup vs. rsync'ed DNS servers

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DNS Tools - DNS and Few of its Concerning Terms and Tools

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