Forum Discussion
santosh_81454
Nimbostratus
NimbostratusClarification on HTTP::host
Does HTTP::host understand only the text part of the host or can it resolve its IP address and then check the conditions
For Example:
If I have the nslookup for domain.com as 20.30.40.1
and the Irule in place is as below:
when HTTP_REQUEST {
switch -glob [string tolower [HTTP::host][HTTP::uri]] {
"*domain.com/images/*" { pool DefaultPool}
default {drop }
}
}
will the HTTP::host search for "domain.com" or 20.30.40.1 in the condition part??
hoolioCirrostratus
Hi Santosh,
HTTP::host returns whatever the client sends in the HTTP host header. If a user accesses http://20.30.40.1/index.htm, then the browser sets the host header to 20.30.40.1. Likewise, if a user accesses http://www.example.com:80/index.htm, then the browser sets the host header to www.example.com:80.
Your iRule should work to select the default pool as long as the client uses a domain name in the host header.
Aaron