Hi, I've searched the mailing list archive, but haven't seen an answer yet, so I'm hoping someone can help. I'm using the classic setup of having a lightweight Apache frontend with mod_proxy (and Ask Bjoern Hansen's mod_proxy_add_forward extension for setting the X-Forwarded-For header). Proxied requests are passed to the mod_perl Apache backend. For some of the requests, I need to find the originating host, not the localhost 127.0.0.1 IP address, so that I can select which data set the request should be serviced by. (The service is a search engine service, where all the GUI is written in Perl.) The setup is all as per the mod_perl guide (other than calling the package name IpFix instead of My). So I have a line in the mod_perl httpd.conf with: PerlPostReadRequestHandler IpFix::ProxyRemoteAddr I've even got the system working fine on the experimental server. However, when moving over the installation to the live server yesterday, I ran into a problem, where the ProxyRemoteAddr code does not appear to be receiving its argument correctly. The error message coming from the error_log file is as follows: Use of uninitialized value at PerlPostReadRequestHandler subroutine `IpFix::ProxyRemoteAddr' line 1. Subsequent error messages complain about the access to $r->connection->remote_ip Use of uninitialized value at /usr/local/lib/perl/IpFix.pm line 17. which suggests to me that the $ argument to ProxyRemoteAddr is failing to be passed. I've checked that the mod_proxy_add_forward code is compiled into the front end Apache server (it is). And the url is definitely being proxied to the backend, because my perl code is reporting a url for http://localhost:8080/perl/search/internaltest (and this is the code being executed). The mod_perl back end has been built with PERL_UTIL_API=1, EVERYTHING=1 settings to make sure Apache:: objects should all be available. And I use Apache::Registry in startup.pl and the IpFix package. Can anyone suggest where it's going wrong? All help gratefully received - I can't see why it shouldn't be getting this correct. Thanks, Peter -------------------------------------- Peter Bailey ph: +61 2 6249 3460 ACSys CRC; Dept of Comp Sci, FEIT, ANU Canberra ACT 0200 Australia
