Cisco Cisco Web Security Appliance S170 사용자 가이드

 describes the DNS options for the 

advancedproxyconfig

 CLI command.

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 17-2, 
`Variables for Customized 
End-User Notification Pages,' on 
page 6 for 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.

Would you like proxy not to 
automatically failover to 
DNS results when upstream 
proxy (peer) is 
unresponsive?

Yes, No

(Boolean)

No

Yes

Disable/Enable automatic 
failover to DNS results when 
upstream proxy (peer) is 
unresponsive.

Find web server by:

0, 1, 2, 3

1

Yes

Specify how the appliance 
should find the location of the 
requested web server.

0 = use DNS answers in 
order

1 = use client supplied 
address then DNS

2 = use ONLY client 
supplied address

3 = use client supplied 
address for next hop 
connection and Web 
Reputation (Warning: 
Destination IP based 
policies will still use DNS).