For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

girishb's avatar
girishb
Icon for Cirrus rankCirrus
Jan 25, 2020

Need Help to create an iRule for Name Based Virtual Hosting

We are trying to build iRule for one newly build tomcat server when the F5 picks one of the new pool members, the iRule needs to route the request, in a round robin manner, to the different instances...
application delivery
BIG-IP
irule
iRules
name based virtual hosting
Samir's avatar
Samir
Icon for MVP rankMVP
Jan 26, 2020

Hosting multiple websites on the same virtual server and load balancing requests to the appropriate webserver based on the host name requested. This can be achieved via iRule or F5 policy also.

** Make sure IP address bind with multiple DNS CNAME.

* Create the LB Pool based on the application requirement.

Pool_A[ 1perf.cloud123.com,   3perf.cloud123.com]

Pool_B [  2perf.cloud123.com,   4perf.cloud123.com]

* Create iRule

when HTTP_REQUEST {
set host [string tolower [HTTP::host]]
switch -glob $host {
      "www.xyz.com" {
         pool pool_A
      }
      "www.pqr.com" {
         pool pool_B
      }
     default { reject }
   }
}

* Create the Virtual Server and assign irule.

Hope it will solve issue.