[dns-operations] Clear DNS cache

[Stephane Bortzmeyer]

On Thu, Jun 20, 2013 at 01:10:01PM +0200,
 abang <abang at t-ipnet.net> wrote 
 a message of 9 lines which said:

> "..It seems your nameservers don't agree on the SOA serial number!... "

But they seem to agree on the content. I assume that Dynect does not
enable AXFR with the customer's own name servers so they have to keep
everything in sync by hand.