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Chapter 12: Web Hosting Configuration Guide
The following is an example of how to configure a simple verification check where the IA
will issue an HTTP command to retrieve an HTML page and check for the string "OK":
load-balance set group-options ctron-www acv-command "GET /test.html" acv-reply
"OK" read-till-index 25
The read-till-index option is not necessary if the file test.html contains "OK" as the first
two characters. The read-till-index option is helpful if the exact index of the acv-reply
string in the file is not known to the user. In the above example, the IA will search from the
beginning of the file up to the twenty-fifth character for the start of the string "OK."
Web Hosting with Multiple Virtual Groups and Multiple Destination Servers
In
Figure
29, three different servers are used to provide different services for a site.
10.1.1.2
ftp.quick.com
Domain Name
www.quick.com
ftp.quick.com
smtp.quick.com
204
Web requests
forwarded to
the server
10.1.1.1
www.quick.com
10.1.1.3
smtp.quick.com
Figure 29. Web Hosting with Multiple Virtual Groups and
Multiple Destination Servers
Virtual IP
207.135.89.16
207.135.89.16
207.135.89.16
Router
www.quick.com
smtp.quick.com
TCP Port
Real Server IP TCP Port
80
10.1.1.1
21
10.1.1.2
25
10.1.1.3
Internet Appliance User Reference Manual
Internet
User Queries:
ftp.quick.com
80
21
25
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