ProxySG sends DNS lookups when configured for a reverse proxy deployment.


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Solution

Overview
The ProxySG appliance sends DNS lookups when configured for a reverse proxy deployment.
Cause
Resolution
There are a few things that can cause the ProxySG to perform DNS lookups. DNS lookups in a reverse proxy deployment can occur when any of the following are active:
  • Adaptive Refresh
  • Access logging
  • Pipelining
  • HTTP health checks against a hostname
  • Policy that is based on URL or category (the proxy will do an RDNS lookup if it receives an IP as the host header in a request)
Workaround
Additional Information
Bug Number
InQuira Doc IdKB5030
Attachment

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First Published      10/01/2014
Last Modified      01/12/2017
Last Published      01/12/2017
Article Audience
Product      ProxySG
Software      SGOS 5, SGOS 6
Article Number      000013957
Summary      ProxySG sends DNS lookups when configured for a reverse proxy deployment.
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