Use useragent_ip instead of client_ip on Apache 2.4 #12
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manuelkasper
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Apr 30, 2013
Use useragent_ip instead of client_ip on Apache 2.4
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Although r->connection->client_ip is the 2.4 equivalent of r->connection->remote_ip in Apache 2.2, for mod_auth_pubtkt's use case it's more appropriate to check against r->useragent_ip, which is the IP of the actual user if there is a transparent load balancer or proxy between the user and the server.
For more details: https://httpd.apache.org/docs/2.4/developer/new_api_2_4.html