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

Forum Discussion

Lucern's avatar
Lucern
Icon for Nimbostratus rankNimbostratus
Oct 05, 2019

Automatic Maintenance (Sorry) Page triggered via monitor

All,   I see there are tons of different ways to automatically display a VIP maintenance page when all members of a pool are down. What I'm looking for is a way to automatically display a mainten...
application delivery
big-ip
irules
Enes_Afsin_Al's avatar
Enes_Afsin_Al
Icon for MVP rankMVP
Oct 06, 2019

Hi Lucern,

when HTTP_REQUEST {
    if { [active_members pool_example] < X } {
        log local0. "pool_example: At least one member offline"
        HTTP::respond 503 content "MAINTENANCE"
    }
}

X = number of members in pool_example

Lucern's avatar
Lucern
Icon for Nimbostratus rankNimbostratus
Oct 06, 2019

Oh wow! That doesn't seem too complicated! I will give that a shot! Thank you so much!