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

…emon 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 firewall with Apache login failure IP blacklisting. For Amazon EC2, a good practice is to create a discrete database server, and only allow access to it inside a VPC security group, or from specific IP addresses enabled in that security group. That way, you can safely Al… 1, 1, 1, 0 and 3139.38

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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… 1, 0, 0, 0 and 2724.24

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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 2179.42

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

…dations. If you are running MySQL 5 or later, the configuration statements can be in the following form (example from one of my servers): [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql symbolic-links=0 innodb_file_per_table = 1 thread_concurrency = 8 query_cache_size = 64M query_cache_limit = 4M thread_cache_size = 8 myisam_sort_buffer_size = 64M read_rnd_buffer_size = 8M read_buffer_size = 2M sort_buffer_size = 2M ta… 10, 0, 1, 0 and 1323.19

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

…gitimate IP address can monopolize, in addition to blacklisting attackers. This is the first step to proper web server performance in today’s Internet climate. Popular sites that do not have a solid security and load balancing strategy are subject to crippling traffic from the Internet’s millions of malicious and compromised servers and personal computers. Reconfigured Apache web server, PHP and MySQL to better utilize the server&#… 9, 0, 1, 0 and 1167.52

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

…C 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. The only publicly-accessible servers would be the web proxies. Th… 5, 1, 0, 0 and 1089.69

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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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Varnish VCL and Config for WordPress with W3 Total Cache

…menting. 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 server with appropriate changes to the port and backend IP settings. Varnish Config (/etc/sysconfig/varnish) # Configuration file for varnish # # /etc/init.d/varnish expects the variable $DAEMON_OPTS to be set from this # shell script fragment. # # # Maximum number of open files (for ulimit -n)… 5, 0, 0, 0 and 972.94

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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 830.23

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Auto Mailer Form with Validation and reCAPTCHA

…o, send email and display a confirmation message. if(Form::isValid($_POST["form"])) { /*The form’s submitted data has been validated. Your script can now proceed with any further processing required.*/ //get the POST data from the form $Course = $_POST['Course']; $Semester = $_POST['Semester']; $WhyUnavailable = $_POST['WhyUnavailable']; $DetailUnavailable = $_POST['DetailUnavailable']; $Classification = $_POST[… 2, 0, 0, 0 and 674.58

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