Looking for the download instructions?
All available diagnostic modules for IBM HTTP Server 7.0 and later are included in the product installs. They do not require any separate download.
Original documentation from when mod_net_trace required a separate download is preserved here
Original documentation from when mod_net_trace required a separate download is preserved here
Provide feedback on the IBM HTTP Server forum on IBM developerWorks.
Questions about IBM HTTP Server may be posed on stackoverflow and serverfault