Rewrite Subdomain
Dears,
I am wondering about an efficient procedure to search and replace a specific Subdomain in the HOST, What i want to achieve is rewrite the HTTP request toward the server side as follows:
Client Request: DIRx.Clust1.Domain.com ----Should be forwarded to server side as follows:--- DIRx.Clust2.Domain.com, Only rewrite the Clust1 to Clust2 in the HOST, noting that the x value is variable DIRx and keep changing so i am unable to achieve the rewrite by simple Rule to replace the whole domain, i want to have a universal rule that can match the DIR# and copy it successfully to the domain when the rewrite happened.
Please can you guide me if there is any useful workaround.
Regards,
Muhannad
Code above is case sensitive on HTTP::host match.
If you want a case-insensitive match you can run this instead
when HTTP_REQUEST { # log local0. "Client requested host: [HTTP::host]" if { [string tolower [HTTP::host]] starts_with "dir" && [string tolower [HTTP::host]] contains "clust1" }{ HTTP::header replace Host [string map {"clust1" "clust2"}[string tolower [HTTP::host]]] # log local0. "Modified host: [HTTP::host]" } }
Oct 17 15:43:07 bigip info tmm7[11345]: Rule /Common/test-iRule <HTTP_REQUEST>: Client requested host: DIR000.Clust1.Domain.com Oct 17 15:43:07 bigip info tmm7[11345]: Rule /Common/test-iRule <HTTP_REQUEST>: Modified host: dir000.clust2.domain.com