Written by If, for example, a host record changes in your local DNS server, Forefront TMG does not directly uses the updated DNS entry, even if you use the command ipconfig /flushdns (in an elevated cmd). This command works only for the locally logged on user. The DNS entry will only be updated until the TTL has expired (which can be found in the settings of your DNS server TMG is using). If you want TMG to use the new DNS entry directly, follow the steps below.
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