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Tuning Apache and MySQL for Best Performance in a Shared Virtual Hosting Environment

…e_limit = 1 M Current Query cache Memory fill ratio = 77.74 % Current query_cache_min_res_unit = 4 K MySQL won’t cache query results that are larger than query_cache_limit in size SORT OPERATIONS Current sort_buffer_size = 1 M Current read_rnd_buffer_size = 4 M Sort buffer seems to be fine JOINS Current join_buffer_size = 132.00 K You have had 0 queries where a join could not use an index properly Your joins seem to be using indexes properly O… 34, 0, 3, 0 and 8017.04

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APC INFO Monitor

How to Configure APC Cache on Virtual Servers with PHP running under FCGId

…timeout) … if the cache is working well. If you see exit(communication error) then you have issues, probably cache full and fragmented. Fragmentation Explained Fragmentation is a measure of the non-available portion of apc.shm_size due to lack of contiguous memory large enough to accept new cache items. 100% fragmentation means the available memory is broken into hundreds of small pieces that are too small to accept new cache items. This occu… 4, 0, 0, 0 and 4825.77

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WordPress with W3 Total Cache on Nginx with APC (Virtualmin)

…which should increase performance and lessen memory requirements. Let’s hope this rumor is true! W3 Total Cache Settings Provided you use the nginx.conf settings described above, using APC cache for all W3TC categories of cache/minify/etc. will work with no additional changes to the conf file. However, if you wish to choose Disk cache for page and/or minify cache, URL rewriting will not work properly on Virtualmin. You must include the loc… 4, 0, 0, 0 and 2412.88

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Varnish VCL and Config for WordPress with W3 Total Cache

…threads to start VARNISH_MAX_THREADS=1000 # # # Idle timeout for worker threads VARNISH_THREAD_TIMEOUT=120 # # # Cache file location if using file cache #VARNISH_STORAGE_FILE=/var/lib/varnish/varnish_storage.bin # # # Cache size: in bytes, optionally using k / M / G / T suffix, # # or in percentage of available disk space using the % suffix. VARNISH_STORAGE_SIZE=3G # # # Backend storage specification # malloc runs from RAM, file from file VARNISH… 6, 0, 0, 0 and 1465.9

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APC INFO Monitor

APC Cache Considerations for Virtual Hosting Environments

APC cache does not work well in a virtual hosting environment unless PHP is running as FCGID, and every individual virtual host has a unique PHP.ini and a unique fcgiwrapper. This is not the case with many virtual hosting environments because the memory and CPU requirements are too great. I suggest using Virtualmin for a shared hosting environment with APC cache, because it does allow to set php.ini and fcgiwrapper for every individual virtual h… 1, 0, 0, 0 and 1271.3

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SoccerNews.com website

Apache and MySql Performance Tuning for High Traffic WordPress Website on Cpanel

…PHP to run as FastCGI (fcgid) and recompiled Apache to better handle the needs of a high traffic WordPress site. Configured a large MySQL table and query cache based on performance and load testing. Configured Amazon CloudFront Content Distribution Network, page cache, browser cache, and object cache with the WordPress plugin, W3 Total Cache. Due to the sheer number of ad scripts being served per page, there were inevitable JavaScript and PHP con… 8, 0, 0, 0 and 934.02

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Web Hosting

Decades of experience hosting websites, from small local sites with only a few html pages, to high-traffic sites with thousands of users and pages.  Website hosting, evolved Web hosting has changed dramatically in the last few years. The majority of accounts are now running PHP scripts and MySQL, whereas in the past most accounts were only […]

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Install phpMyAdmin with SSL on CentOS, Amazon Linux, RedHat (Apache or NginX)

phpMyAdmin database display I recently ran into a problem with the upgraded 3.5.2 phpMyAdmin package provided via the rpmforge.repo. Search no longer works, nor does pagination, etc. Plus, it’s out of date and vulnerable to an XSS exploit. I have solved this by changing to the EPEL repo, which maintains the latest version of phpMyAdmin. This post will teach you how to install phpMyAdmin on CentOS, Amazon Linux, or Redhat. Configuration ins… 3, 0, 0, 0 and 415.12

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Remote publishing to WordPress from Facebook via RSS

…pend the time to post with WordPress. Let’s face it, Facebook is convenient to use to share a link, upload small photos and video, or write a brief update. Your Blog is Hungry FeedWordPress is a plugin that pulls content from an RSS feed and publishes articles as WordPress posts. It is somewhat complex to set up properly, so I won’t go into that here. It’s up to you to figure it out, but it is very useful for adding non-copyrigh… 1, 0, 0, 0 and 415.12

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Résumé

Chris Gilligan Information Architect, Web Server Administrator, Media Producer web • video • print chris@chrisgilligan.net chrisgilligan.com I design and produce information and communication media for university, corporate, small business, manufacturing and non-profit clients: web sites Information architecture and design for open source content management systems Linux Apache MySQL PHP web server administration Postfix Dovecot Sendmail […]

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