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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… 41, 1, 2, 0 and 2309.09

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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 1504.81

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

…mon (LFD) for your server: ConfigServer Firewall is an excellent free firewall & LFD. This will help prevent brute force probes, port flooding, DDOS, etc. If you have 600 virtual hosts running on a server, it is very likely that the server is experiencing constant malicious exploits, especially if you are also running email servers on the same IP addresses. If your host does not support ConfigServer (e.g. Amazon AWS and some VPS may not play… 4, 0, 1, 0 and 843.22

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

…erable 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 instructions are provided for Apache and NginX web servers. For this to work properly and safely, you should be running SSL on your host. Otherwise, change the ForceSSL line in the config file provided below… Install p… 10, 0, 0, 0 and 518.9

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

…ted 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 actually made the problems worse, resulting in an “own goal” that brought down the server… 6, 0, 0, 0 and 311.34

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

…sions. Write the RegEx OK, here’s the payoff for reading so far: a regex filter that will squelch Dovecot brute force attacks on CentOS 6, Amazon Linux 2013 and other kernel 3.4 RedHat downstream distros such as Fedora and Arch. This would, of course go in /etc/fail2ban/filter.d/dovecot.conf: Here’s the original, commented out via #: #failregex = .*(?:pop3-login|dovecot):.*(?:Authentication failure|Aborted login \(auth failed|Aborted… 1, 0, 0, 0 and 259.45

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