# HttpUserId Module

**URL:** <https://www.ruby-forum.com/t/httpuserid-module/208813>\
**Category:** NGINX\
**Created:** [June 27, 2011, 9:01pm UTC](https://www.ruby-forum.com/t/httpuserid-module/208813 "2011-06-27T21:01:11Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dubstep](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/d/cdc98d/32.png) [@dubstep](https://www.ruby-forum.com/u/dubstep)\
**Post date:** [June 27, 2011, 9:01pm UTC](https://www.ruby-forum.com/t/httpuserid-module/208813/1 "2011-06-27T21:01:11Z")

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Hi all,

which algorithm uses the HttpUserId module ?

I’ve a strange behavior in my nginx installation: it seems that  
different  
client (behind a proxy server) got the same userid cookie, so i’d like  
to  
investigate if nginx use the source ip address + the nginx time as a  
criteria to assign the cookie or not.

Regards

Daniele