Forum Discussion

Cirrostratus

Jun 06, 2019

Masking a URL?

I have a customer who has a contract that is requiring that we hide what is essentially an internal URL. Right now when people go to the site they see:

https://subdomain.companya.com

What the contract is requiring is that they see:

https://subdomain.differentdomain.com

They asked if this was possible through the F5. I vaguely remember one of my old teammates mentioning that the F5 could do this via an iRule, but all of the "URL masking" or "URL rewrite" things I have been able to find have actually been for the URI, not the URL.

Does anyone know if this is actually possible via the F5, and if so, does anyone have any documentation or know what is required to make this happen?

Thanks.

application delivery

BIG-IP

LTM

Dario_Garrido
Jun 07, 2019
Nothing is imposible on F5 🙂
First of all, you need to configure your customer DNS to reach one F5's virtual server (subdomain.differentdomain.com).
This VS has to have a pool of nodes of the new domain (subdomain.companya.com).
After that, yo can replace the host header using an iRule like this.
when HTTP_REQUEST { # Check if requested host starts with subdomain.differentdomain.com if { [string tolower [HTTP::host]] eq "subdomain.differentdomain.com" } { # Replace the host header value with subdomain.companya.com HTTP::header replace Host "subdomain.companya.com" } }
KR,
Dario.

Dario_Garrido
MVP
Jun 07, 2019
Nothing is imposible on F5 🙂
First of all, you need to configure your customer DNS to reach one F5's virtual server (subdomain.differentdomain.com).
This VS has to have a pool of nodes of the new domain (subdomain.companya.com).
After that, yo can replace the host header using an iRule like this.
when HTTP_REQUEST { # Check if requested host starts with subdomain.differentdomain.com if { [string tolower [HTTP::host]] eq "subdomain.differentdomain.com" } { # Replace the host header value with subdomain.companya.com HTTP::header replace Host "subdomain.companya.com" } }
KR,
Dario.
gdoyle
Cirrostratus
Jun 11, 2019
Thanks, Dario.
So you are saying that the the Virtual Server the customer's are hitting initially would have to consist of the subdomain.companya.com Virtual Server, or it would need to have the actual pool members for subdomain.companya.com?
- Dario_Garrido
  MVP
  Jun 12, 2019
  Hello gdoyle
  
  If I understood well...
  
  You want to hide this domain ->
  subdomain.companya.com
  And you want to show this domain instead ->
  subdomain.differentdomain.com
  
  For this reason, your configuration should be something like this:
  
  CUSTOMER -> VS (subdomain.differentdomain.com) -> POOL (subdomain.companya.com)
  
  In case you need something totaly opposite. you just have to replace one domain for another in the iRule and the schema.
  
  KR,
  Dario.
  - gdoyle
    Cirrostratus
    Jun 12, 2019
    Thank you!