July 2016
Beginner
320 pages
6h 32m
English
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Tracking website visitors
A fairly unobtrusive way to track unique website visitors is to use the userid module. This module sets cookies that are used to identify unique clients. The value of these cookies is referenced by the $uid_set variable. When that same user returns to the site and the cookie is still valid, the value is available in the $uid_got variable. An example of how to use these cookies is as follows:
http { log_format useridcomb '$remote_addr - $uid_got [$time_local] ' '"$request" $status $body_bytes_sent ' '"$http_referer" "$http_user_agent"'; server { server_name .example.com; access_log logs/example.com-access.log useridcomb; userid on; userid_name uid; userid_domain example.com; userid_path /; userid_expires 365d; userid_p3p ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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