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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… 7, 1, 2, 0 and 1439.98

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APC INFO Monitor

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

APC INFO Monitor My Virtualmin CentOS 5.6 Virtual Private Server runs several virtual domains with PHP under FCGId using APC for opcode caching: Joomla, PHPbb, WordPress, etc . APC is somewhat challenging to configure properly with fcgid-enabled virtual domains, but it is quite helpful to optimize system resources and prevent traffic surges on one site from affecting overall server performance. Joomla and PHPbb have code that is pre-optimized w… 2, 0, 0, 0 and 804.3

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

…m install phpMyAdmin Apache Edit /etc/httpd/conf.d/phpMyAdmin.conf Allow all incoming hosts for a web hosting server, or only allow hosts you require: localhost, your local workstation, etc.) For a hosting server with open access, you should have a login failure daemon to block offending IP addresses with multiple failed HTTP logins. ConfigServer Firewall works well, and has modules for cPanel and Webmin. OSSEC is another reactive IPTables fir… 12, 0, 0, 0 and 622.67

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

…s 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 consider using a stateful packet i… 10, 0, 1, 0 and 557.81

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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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SoccerNews.com website

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

…responding to a plea for assistance in a WordPress.org support forum. Though the site was running on a dedicated server with 8GB RAM, it was crashing frequently under load. The developer tried implementing APC Alternative PHP Cache and W3 Total Cache, but these measures turned out to be incompatible with some of the custom PHP code and the software architecture of the Cpanel server. Haphazardly implementing randomly suggested “solutionsR… 9, 0, 1, 0 and 505.92

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

…raffic to an instance based on IP address, IP block, port, etc. VPC will gateway traffic to and within a virtual cloud; one can create a security group for a cohort of replicated database servers to only allow traffic from within the virtual cloud. Likewise, one could create a cloud group with public facing, load-balanced Varnish reverse proxies that interact with an Apache or NginX app server, and that app server connects to the database cohort…. 3, 0, 0, 0 and 467.01

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

…for WordPress installed in a subfolder. This info also assumes you have successfully installed APC Cache on your server, and set up a clean install of Virtualmin with Nginx as the Alternative Web Server. Switching from Apache to Nginx later is difficult, as is transferring apache virtual server backups. Best to start fresh and build from scratch. Testing the Virtualmin Nginx Modules Virtualmin does not support Nginx and Apache together, and there… 8, 0, 0, 0 and 415.12

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APC INFO Monitor

APC Cache Considerations for Virtual Hosting Environments

…and fcgiwrapper for every individual virtual host, and so to set an individual configuration for APC per virtual server. However with 200+ virtual hosts all running PHP script packages, as is the case with a commodity shared hosting server, this will use a lot of memory, and you will need somewhere in the neighborhood of 10-30GB apc.shm_size if you attempt to configure a single APC cache for the entire server. My web hosting server is for a small… 6, 0, 2, 0 and 389.17

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