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

Forum Discussion

Subrun's avatar
Subrun
Icon for Cirrostratus rankCirrostratus
May 05, 2019

Domain Based Filtering for a Virtual Server

Hello All,   My client asked to do DNS Based Filtering for a Virtual Server. For example Virtual Server Configured in F5 will be accessible only from some specific domain from Internet world. For...
application delivery
big-ip
LTM
Vijay_E's avatar
Vijay_E
Icon for Cirrus rankCirrus
May 05, 2019

You would have to figure out the IP addresses that belong to msn.com and use an iRule like this to allow communication. Another option is to be able to check any specific header value to allow communication.