[squid-users] squid 6.3: client internal ip address PTR DNS query

David Touzeau david at articatech.com
Tue Mar 18 10:25:38 UTC 2025


We note that Squid performs a client DNS PTR query each time client 
sends query.

We have taken care to ensure that

  * that the log model does not use machine names
  * No acls concerning workstation hostnames are added.


We use kerberos authentication with Squid: is 
negotiate_kerberos_auth/process plugin is able to perform PTR requests?

Is there another option that denies squid to perform such requests?

Regards
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