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

Choose Your Operator Wisely

Chase bumped a question on Stack Exchange my way last night on redirects. The question was simple enough: how do you take a request for https://website1.com/user=1234 and redirect to https://website2...
Updated Jun 05, 2023
Version 2.0
application delivery
irules
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Christ Follower, Husband, Father, Technologist. I love community and I especially love THIS community. My background is networking, but I've dabbled in all the F5 iStuff, I'm a recovering Perl guy, and am very much a python enthusiast. Learning alongside all of you in this accelerating industry toward modern apps and architectures.
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JG
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Feb 05, 2019

These two are not exactly the same, as this use of "string match" does not do a positional search:

if { [HTTP::uri] starts_with "/user=" } {}
if { [string match "/user=*" [HTTP::uri]] } {}

.