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