Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

eLeCtRoN's avatar
eLeCtRoN
Icon for Cirrus rankCirrus
Aug 22, 2018

iRule HOST Header replace with dynamic content

Hello,   I have just a short question, is it possible and how to change the HOST Header. For example I come from admin.test1.mycompany.com and I would like to change it to admin.test2.mycompany.co...
application delivery
devops
irules
LTM
stan_piron's avatar
stan_piron
Icon for Cumulonimbus rankCumulonimbus
Aug 22, 2018

Try this:

when HTTP_REQUEST { 
    HTTP::host [string map {".test1.mycompany.com" ".test2.mycompany.com"} [HTTP::host]]
}