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APC INFO Monitor

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

…oad_” apc.rfc1867_name = “APC_UPLOAD_PROGRESS” apc.rfc1867_freq = 0 apc.localcache = 1 apc.localcache.size = 512 apc.coredump_unmap = 0 apc.stat_ctime = 0 Save php.ini, restart apache and then watch the APC Monitor to ensure fragmentation stays below 50% (it should remain less than 10% most of the time… if fragmentation rises quickly, you should add a few more […]

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

Virtualmin now includes support for Nginx web server. I deploy many WordPress sites with 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 […]

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

…assword you added to the config file, with no default permissions, on localhost Give pma user all permissions on phpmyadmin database, on localhost Now you have a secure PMA which will work for all mysql users on your host. Version 3.5+ now has Status Monitoring and Advisor. Used in conjunction with a performance tuning script […]

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

…ning 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 “solutions” had […]

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

…with max_connections set slightly higher than Apache’s maxclients. If you are running database caching via APC, you may lower max_connections, because APC will serve the busiest queries directly from cache. Take Time to Get a Realistic Assessment of MySQL Performance If you have a PHP opcode and database caching strategy (such as APC) implemented on […]

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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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Auto Mailer Form with Validation and reCAPTCHA

I was recently searching for a form template 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 […]

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Cpanel Mailman mailing lists: cannot manage lists after migrating to new host

We recently migrated 2 Cpanel servers to VPS. Most things migrated properly and without incident. However, Mailman mailing lists were the exception. Mailing lists appear to have migrated properly, as they show up under WHM and Cpanel and usr/local/cpanel/3rdparty/mailman/bin/list_lists However, when cpanel user clicks Manage link, the following message appears: cpanel1.hosting.com mailing lists – Admin […]

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