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Latest in Apache

Tutorials, howtos, and general web server security & optimization tips about Apache web server under Linux and Unix like operating systems.

I made changes to the httpd.conf file. How do I reload the new config changes without restarting the Apache 2 web server under Debian / CentOS Linux operating systems?
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I am in the process of setting Apache and PHP for my small business server. I'm not utilizing file upload functionality in any of my PHP scripts. How do I disallow uploading files under CentOS or Ubuntu Linux based LAMP server?
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curl: If-Modified-Since Command Linux / Unix Example

HTTP protocol allows a client to specify a time condition for the document it requests. It is If-Modified-Since or If-Unmodified-Since. How do I use curl Unix/Linux command line option to test a server with If-Modified-Since condition and validate Last-Modified settings?
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How do I find out if a web-page is gzipped or compressed using Unix command line utility called curl? How do I make sure mod_deflate or mod_gzip is working under Apache web server?
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Default robots.txt File For Web-Server

How do I create a default robots.txt file for the Apache web-server running on Linux/Unix/MS-Windows server?
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I'm running the Mediawiki software under Apache web server running on the Unix operating systems. I'm getting the following in my php error log:

PHP Fatal error: Cannot redeclare wfProfileIn() (previously declared in /var/www/html/wiki/includes/profiler/Profiler.php:14) in /var/www/html/wiki/includes/ProfilerStub.php on line 25.

How do I fix this problem under Mediawiki version 1.18.0?
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How do I a user to the Apache group called www-data under Ubuntu or Debian Linux server operating systems?
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