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Apache config for Worker MPM vs Prefork MPM

Some installations of Apache will have been compiled to work with either Prefork or Worker MPM, but most by default are compiled only to work with Prefork. Changing to Worker MPM may allow your server to handle much higher traffic, more user sessions, with less RAM use. Your site or server will not scale well if it is running Prefork MPM. Worker is a bit more difficult to set up properly, and has some restrictions regarding functionality of PHP… 16, 1, 1, 0 and 4449.63

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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 Plus, it’s out of date and vulnerable to an XSS exploit.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… 2, 0, 0, 0 and 2373.99

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APC INFO Monitor

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

…to configured correctly for your WordPress sites, I suggest WP Super Cache and WP Minify… that combination will probably have a better effect, as it will serve pages very quickly and accellerate user experience for a small number of users. Joomla 1.5 and phpBB3 are much easier to work with, as their caching systems are built to use APC and other opcode caches. Apparently, Gallery3 now also supports opcode caching. More advice: turn on apc… 2, 0, 0, 0 and 959.98

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

…hallenges in security as well as performance tuning. It is impossible to predict whether a certain configuration will work properly for a given server, unless the hardware, software, accounts, network and traffic are identical to a previously configured server… therefore it is impossible to give a configuration which will cover all applications. Firewall Unnecessary Traffic from Affecting the Server Before you begin performance tuning, please con… 1, 0, 0, 0 and 492.96

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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… 3, 0, 0, 0 and 467.01

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

…l2Ban for CentOS & other RedHat downstream distros only provides protection against SASL login failures. But with a little work and research, one can successfully configure many more “jails” for the malicious traffic. To take full advantage of Fail2Ban, the admin will need to become familiar with RegEx: regular expressions. Amazon Web Services Security Groups AWS provides several levels of firewall protection for EC2 instances; I… 3, 0, 0, 0 and 155.67

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

…8221; Nginx support on Virtualmin is working well, and it is reported that the lead developer, Jamie Cameron, is working on a php-fpm implementation, 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…. 3, 0, 0, 0 and 155.67

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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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Auto Mailer Form with Validation and reCAPTCHA

…emplate that uses Twitter’s Bootstrap framework. PFBC, the PHP Form Builder Class, was recently refactored with Bootstrap, and it also supports validation and reCAPTCHA. PFBC does not include a form handler, but it does take the difficult and redundant work out of creating self-validating forms. Adding an auto-mailer to PFBC is very simple, however. You just need a simple PHP if/else and all is well. If you have read this far, you should go… 1, 0, 0, 0 and 51.89

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