Cisco Cisco Web Security Appliance S670 Betriebsanweisung

A Web Security appliance does this for you automatically.

To support DNS lookup, create an internally resolvable DNS name beginning with ‘

wpad

’ (for example, 

wpad.example.com

) and associate it with the IP address of the server hosting the 

wpad.dat

 file.

To support DHCP lookup, configure your DHCP server’s option 252 with the url of the wpad.dat file 
location (for example: “

http://wpad.example.com/wpad.dat

”). The URL can use any valid host 

address, including an IP address, and does not require a specific DNS entry.

.

.

The web proxy can intercept two types of FTP requests:

Native FTP. Native FTP requests are generated by dedicated FTP clients (or by browsers using 
built-in FTP clients). Requires the FTP proxy.

FTP over HTTP. Browsers sometimes encode FTP requests inside HTTP requests, rather than using 
native FTP. Does not require the FTP proxy.

To configure proxy settings that apply to FTP over HTTP connections, see 

.

Choose Security Services > FTP Proxy.

Click Enable and Edit Settings (if the only available option is Edit Settings then the FTP proxy is 
already enabled).