iRules - Remove WWW AND replace "Host"

Hi networkdawg,

you may try the iRule below.

It uses the

[domain]

command to extract the first three dotted domain elements (e.g. four.third.second.frist) from the requested HOST-header, then passes the information to a

[getfield]

command to extract the third element and adds the new second and first dotted domain elements via TCL concentation...

when HTTP_REQUEST { 
    if { [string tolower [HTTP::host]] ends_with ".domain1.com" } then { 
        HTTP::host "[getfield [domain [HTTP::host] 3] "." 1].primarydomain.com"  
    } 
}

Cheers, Kai