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

Forum Discussion

davidq_20688's avatar
davidq_20688
Icon for Nimbostratus rankNimbostratus
May 23, 2011

iRule for DNS rewriting

Hi, I’m fairly new to iRules and the company I work for has asked me to use the F5 to perform DNS rewrites.     The F5 will see DNS requests coming in via a Virtual server,...
application delivery
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devops
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hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
May 23, 2011
Hi David,

 

 

You can parse the binary content using iRules. Nat has added a couple of comprehensive examples to the Codeshare:

 

 

http://devcentral.f5.com/wiki/default.aspx/iRules/DNS_decoding.html

 

 

http://devcentral.f5.com/wiki/default.aspx/iRules/fast_DNS.html

 

 

Aaron