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Security Gateway does not apply rules that contain Domain objects Technical Level
Symptoms
  • Security Gateway does not apply rules that contain Domain objects in either the Source or the Destination column
  • Domain object contains such domain URL as ".youtube.com"
Cause

Security Gateway does not use alias name for DNS resolution. It uses a reverse DNS resolution.

For example, the nslookup command for www.youtube.com returns:

Server: UnKnown
Address: 67.210.167.66

Non-authoritative answer:
Name: youtube-ui.l.google.com
Addresses: 209.85.225.93
209.85.225.136
209.85.225.190
209.85.225.91
Aliases: www.youtube.com

The nslookup command for one of the returned IP address 209.85.225.190 returns:

Server:  UnKnown
Address:  67.210.167.66

Name:    iy-in-f190.1e100.net
Address:  209.85.225.190


Solution
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