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APC INFO Monitor

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

…iles are being cached, and how much memory (apc.shm_size) is needed to avoid fragmentation, which will cause the 500 errors. If fragmentation rises quickly to 100%, memory usage is full, and cache full count rises above 0, you will almost surely see “500″ errors. If WordPress is the only PHP script software package on the domain, the following configuration will likely work for you; if you have more PHP software packages, you will nee… 4, 0, 0, 0 and 6486.22

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

…Virtualmin is working well, though I don’t see much improvement over Apache in terms of initial index page load, or time to first byte on the WordPress test site I created.  Cached and subsequent pages load very quickly, so it looks like there is an overall improvement. All WordPress functions seem to work well: comments, image uploads, etc. are no problem. I am interested to see if there is improvement with other scripts, especially phpbb3… 26, 0, 0, 0 and 4670.07

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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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Varnish VCL and Config for WordPress with W3 Total Cache

I have been working on a Varnish front-end for Apache, to be used with WordPress sites. I described the architecture in Load Balancing Virtualmin WordPress Hosting Server with Varnish on AWS. I now have a configuration that seems to work for all WordPress features, including logged-out commenting. This configuration also works well with W3 Total Cache. This configuration is for Varnish on a separate server, but should also work on a single serve… 0, 0, 1, 0 and 1777.23

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SoccerNews.com website

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

…handle. Changed 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 JavaSc… 6, 0, 0, 0 and 1751.28

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WordPress Fail2Ban RegEx for RedHat, CentOS, Amazon Linux

VacantServer WordPress sites are getting hammered with bad logins and probes. We’ve implemented a plugin to log failed login attempts to syslog, and a Fail2Ban filter for the same. If you run these on RedHat, you’ll need some additional configuration info… here it is: WordPress login failure regex (error_log):

Apache nohome regex (error_log):

[…]

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Remote publishing to WordPress from Facebook via RSS

Most WordPress developers know you can use one of several plugins to publish from WordPress to a Facebook wall, app or fan page. Did you know you can also do the opposite? You can publish from Facebook to WordPress by using the FeedWordPress plugin and the RSS feed from your fan page. This can be handy for clients who want to keep their site updated with blog posts, or share links and information, but don’t necessarily want to spend the ti… 3, 0, 0, 0 and 1284.27

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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… 9, 0, 1, 0 and 1050.76

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Automated WordPress Installation Via Custom Virtualmin Script Installer

Updated: please read instructions again and find link to new example file. WordPress (or any other script) can automatically install during Virtualmin > Create Virtual Server. Virtualmin automatically creates users, MySQL database, and installs WordPress in the public_html root, then gives a link to the WordPress Installer. You can even create a custom installer with a set of plugins and themes. To create a custom script installer with plugin… 3, 0, 0, 0 and 1024.82

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

…Apache-for-Low-Memory-Usage.html (the formula works well as a basic guide… but does not take into account PHP memory requirements… see Ovidiu’s comment below). MySQL Tuning Is More Difficult: Trial and Error To test your MySQL server performance, you may try: mysqltuner: https://github.com/rackerhacker/MySQLTuner-perl (or http://mysqltuner.pl for the script only) MySQL Tuning Primer: https://launchpad.net/mysql-tuning-primer p… 2, 0, 0, 0 and 895.1

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