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APC INFO Monitor

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

…not need apache’s mod_php (php module). Less modules loaded, less wasted memory. Comment out: LoadModule php5_module modules/libphp5.so in /etc/httpd/conf.d/php.conf Remove any php_memory_limit lines in httpd.conf’s virtual hosts section. restart apache do some performance testing and raise your server and thread limits to sane levels in httpd.conf If possible, you may wish to run Apache with Worker MPM instead of Prefork MPM. M… 2, 0, 1, 0 and 4955.47

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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… 12, 0, 0, 0 and 1491.88

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

…ss/wp-content; } Adding APC Support for a Virtual Domain Because Virtualmin’s implementation of Nginx uses php-fastcgi, each virtual domain will load its own php.ini file, so you can add the APC directives to that file (/home/domainname/etc/php5/php.ini) Add the following to php.ini (adjust to your requirements) [APC] extension = apc.so apc.enabled = 1 apc.shm_segments = 1 apc.shm_size = 12M apc.optimization = 0 apc.num_files_hint = 256 apc… 26, 0, 0, 0 and 1349.13

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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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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… 10, 0, 0, 0 and 1232.38

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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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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 to PFBC is very simple, however. You just need a simple PHP if/else and all is well. If… 11, 0, 0, 0 and 570.79

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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 505.92

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

…can Fail2Ban account for every change in log file location or structure from version to version. What worked for Centos 5.x may not work for CentOS 6.x; what worked in kernel 2.8 may be invalid in kernel 3.4. Also stated earlier, it is well worth the time to learn a little about RegEx. One vehicle to propel the admin far along the path is RegExr. Author Greg Skinner provides an online version as well as Adobe AIR standalone app. RegExr is an inva… 1, 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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