DNS changes take time to propagate

Symptom

• The IP of a proxied resource has changed, and the DNS entry has been adjusted by their infrastructure provider
• But requests through EZproxy are still sent to the old IP

Applies to

• All EZproxy versions

Resolutions

• Flush the DNS resolver cache for the EZproxy host computer.
• Wait a day
  The DNS server that EZproxy uses to resolve names to IP addresses has not yet received the new IP.
  The duration for the change to propagate depends on various settings of the involved DNS servers.
  The name should be resolved to the new IP after 24 hours at the latest.

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