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

…not support ConfigServer (e.g. Amazon AWS and some VPS may not play well with CSF), you may use Fail2Ban. Tune Apache the Sane Way (Requires Basic Math Skills) If you wish to tune your Apache MPM settings, you should consider following this method:–Usage.html (the formula works well as a basic guide… but does not […]

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APC INFO Monitor

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

…wSymLinks Includes IncludesNOEXEC -Indexes MultiViews SymLinksIfOwnerMatch RemoveHandler .php RemoveHandler .php5 IPCCommTimeout 12 You must “babysit” the configuration: use the APC monitor (apc.php) to see how many files 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 […]

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

…W3 Total Cache and APC Alternative PHP Cache, so I was very interested to see how Nginx performance compares to Apache for WordPress, and whether APC and W3TC would play nice with Nginx. I prefer to install WordPress in public_html/wordpress for ease of development, compatibility with other scripts, etc. Accordingly, the suggested configuration is for […]

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Fail2Ban Regex for RedHat, Fedora, CentOS and Amazon Linux 2013

…ill not function as written. Why? Because Fail2Ban has to deal with the particular implementations of log files in various GNU/Linux distributions, and the peculiarities of the reporting structure in those logs, no single RegEx, nor log file location, is going to work for every distribution. Neither can Fail2Ban account for every change in log file […]

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Apache and MySql Performance Tuning for High Traffic WordPress Website on Cpanel is a high traffic WordPress site with over 600,000 unique visitors and over 2,000,000 page impressions per month. It is a content republisher and aggregator, presenting custom XML feeds for (what else?) soccer news from all over the world. The site has a very active user base, providing content in the forms of editorials and […]

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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): ^%(__prefix_line)sAuthentication failure for .* from <HOST>$ […]

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Chris Gilligan Web Developer, Information Architect, Web Server Administrator, Media Producer web • video • print 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 Front-end UI design, HTML, PHP, LESS Linux Apache […]

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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 […]

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Punk Rock Music Community is a community powered site that covers punk music in Britain, but is poised to go worldwide. They cover punk and hardcore shows and festivals, and provide album reviews, video interviews and more. With a growing audience and user base, Punktastic needed a more reliable and robust web server, so they made the move […]

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