Forum Discussion

smoraneng's avatar
smoraneng
Icon for Nimbostratus rankNimbostratus
Jun 03, 2019

Redirect based on # of domain parts

I have a server that has several websites on it. I need to create a redirect for the sites, but it needs to be rather generic because the developers don't always tell us what the sites are. I want to create a rule that will redirect based on the number of domain parts, for example,

www.site.com or blog.site.com would be left alone, as each of these contains 3 domain parts, however, if the url entered were site.com, I would redirect to www.site.com. Any help would be appreciated.

application delivery
iRules
LTM
  • Dario_Garrido's avatar
    Dario_Garrido
    Jun 03, 2019

    Try this

    when HTTP_REQUEST {
	if { !(string tolower [HTTP::host] starts_with "www") && (llength [split [HTTP::host] "."] == 2) } {
		HTTP::redirect "http://www.[HTTP::host][HTTP::uri]"
	}
]

    KR,

    Dario.

  • Dario_Garrido's avatar
    Dario_Garrido
    Icon for MVP rankMVP
    Jun 03, 2019

    Try this

    when HTTP_REQUEST {
	if { !(string tolower [HTTP::host] starts_with "www") && (llength [split [HTTP::host] "."] == 2) } {
		HTTP::redirect "http://www.[HTTP::host][HTTP::uri]"
	}
]

    KR,

    Dario.

  • Lee_Sutcliffe's avatar
    Lee_Sutcliffe
    Icon for Nacreous rankNacreous
    Jun 03, 2019

    Try this.. if the host header is comprised of only two elements such as 'site.com'

    It will prepend www. and redirect

    when HTTP_REQUEST {
    set hostParts [split [HTTP::host] .]
    if {[llength $hostParts] == 2} {
        HTTP::redirect https://www.[HTTP::host][HTTP::uri]
    }
}