Cisco Cisco Web Security Appliance S690 User Guide

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Cisco IronPort AsyncOS 7.7 for Web User Guide
Chapter 5      Web Proxy Services
Advanced Proxy Configuration
Custom Header Options
DNS Options
 describes the DNS options for the 
advancedproxyconfig
 CLI command.
Table 5-6
advancedproxyconfig CLI Command—Custom Header Options 
Option
Valid Values
Default 
Value
Web Proxy 
Must Restart
Description
Delete
1,2,3
No
Deletes the custom header you 
identify. Identify the header to delete 
using the number associated with the 
header in the list returned by the 
command.
New
For header:
String 
(name:value pair) 
in the format 
"header_name: 
header_text"
For domain:
String (domain 
name or comma 
delimited list of 
domain names)
No
Creates the header you provide for 
use with the domain or domains you 
specify.
Example header:
X-YouTube-Edu-Filter: 
ABCD1234567890abcdef
(The value in this case is a unique 
key provided by YouTube.)
Example domain:
youtube.com
Edit
See New.
No
Replace an existing header with one 
you specify. Identify the header to 
delete using the number associated 
with the header in the list returned by 
the command.
Table 5-7
advancedproxyconfig CLI Command—DNS Options 
Option
Valid 
Values
Default 
Value
Web Proxy 
Must Restart
Description
Enter the URL format for 
the HTTP 307 redirection 
on DNS lookup failure:
String 
with EUN 
page 
variables
%P//www
.%H.com/
%u
No
URL format for the HTTP 307 
redirection on DNS lookup 
failure. See Table 16-2, 
`Variables for Customized 
End-User Notification Pages,' on 
page 6 f
or the list of valid 
variables.
Would you like the proxy to 
issue a HTTP 307 
redirection on DNS lookup 
failure?
Yes, No
(Boolean)
Yes
Yes
Disable/Enable automatic HTTP 
307 redirection on DNS lookup 
failure.