Multidomain

Introduction

You need the following in order to have the same result as described in this HowTo:

• Typo3 version 4.2.x
• Multiple domains pointing to the same TYPO3 installation.

In this How To I'll explain how to set-up a multi domain managed website with domain1 functioning as a portal to domain2 and domain3. Just to make it nice and comprehensive I chose to set-up my example so that the "portal domain1" already has a navigation for domain2 and domain3.

I.e. A user starts at domain1 and can go to domain2-page1 directly with only one click.

STEP 1 - setting up the Pagetree

Your Website tree in the Backend should look as follows:

• Globe Icon (id-0)
  • domain1 (id-1)
  • domain2 (id-2)
    • domain2-page1 (id-3)
    • domain2-page2 (id-4)
  • domain3 (id-5)
    • domain3-page1 (id-6)
    • domain3-page2 (id-7)

domain1,domain2 and domain3 all should have a TEMPLATE for a new site (not an extension template)

STEP 2 - Creating the domain records

Create the Domain records. As easy as it sounds.

I did it like this:

• click the Icon in the pagetree from domain1
• choose new
• in the right window choose the "domain" record
• in the field "domain" type in your domain name : www.domain1.tld

now repeat these steps for domain2 and domain3

Be sure to make sure that you don't enter the domain with http:// or / as it will not work. For example the website http://www.example.com/ should be entered as www.example.com and http://test.example.com should be entered as test.example.com

STEP 3 - Typoscripting

SETUP for domain2 and domain3

Setup the typoscript for domain2 and domain3 are as usual. Here is my setup:

TS TypoScript:

page = PAGE
page.stylesheet = fileadmin/templates/css/style_domain2.css
page.10 = TEMPLATE
page.10 {
   template = FILE
   template.file = fileadmin/templates/main_domain2.html
   workOnSubpart = DOKUMENT
   marks.NAVI = HMENU
   marks.NAVI {
      1 = TMENU
      1 {
        ... use your favourite code here
      }
   }
   marks.CONTENT < styles.content.get
}

I have the same code for domain3 only changes are:

TS TypoScript:

page.stylesheet = fileadmin/templates/css/style_domain3.css
 
and
 
template.file = fileadmin/templates/main_domain3.html

SETUP for domain1

Now important part. The Typoscript SETUP for domain1

TS TypoScript:

config.typolinkCheckRootline = 1
 
page = PAGE
page.stylesheet = fileadmin/templates/css/style_domain1.css
 
page.10 = TEMPLATE
page.10 {
   template = FILE
   template.file = fileadmin/templates/main_domain1.html
   workOnSubpart = DOKUMENT
 
   marks.NAVI_DOMAIN2 = HMENU
   marks.NAVI_DOMAIN2 {
   special = directory
   //setting the special value to the root of domain2
   special.value = 2  
   1 = TMENU
   1 {
      ... use your favourite code here
   }
 
   marks.NAVI_DOMAIN3 = HMENU
   marks.NAVI_DOMAIN3 {
   special = directory
   //setting the special value to the root of domain3
   special.value = 5  
   1 = TMENU
   1 {
      ... use your favourite code here
      }
   }
 
   marks.CONTENT < styles.content.get
}

The most important line here is the first line config.typolinkCheckRootline = 1.

This will not work in typo3 4.1.x!

This will let Typo3 check if the page which is chosen from the navigation belongs to the rootline the user is at. If this is not the case it will try to find the closest "root".