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Varnish VCL and Config for WordPress with W3 Total Cache

…{ # only using one backend set req.backend = origin; # # set standard proxied ip header for getting original remote address set req.http.X-Forwarded-For = client.ip; # # logged in users must always pass if( req.url ~ “^/wp-(login|admin)” || req.http.Cookie ~ “wordpress_logged_in_” ){ return (pass); } # accept purges from w3tc and varnish http purge […]

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

…ze (> 16M) I suggest you NOT enable the slow query log unless the Slow Queries result is very high. Slow Queries result % will be somewhat high if MySQL has run for less than 24 hours. Example MySQL Tuning Primer results: SLOW QUERIES The slow query log is NOT enabled. Current long_query_time = 10.000000 […]

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

…ream 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 login \(tried to use disabled|Disconnected \(auth failed).*rip=(?P\S*),.* …and here’s a substitute, created via experimentation with RegExr: failregex =… 7, 0, 0, 0 and 467.94

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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): ^%(__prefix_line)sAuthentication failure for .* from <HOST>$ […]

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

…d MySQL browser written in php # # Allows only localhost by default # # But allowing phpMyAdmin to anyone other than localhost should be considered # dangerous unless properly secured by SSL Alias /phpMyAdmin /usr/share/phpMyAdmin Alias /phpmyadmin /usr/share/phpMyAdmin # Apache 2.4 Require ip Require ip ::1 … 2, 0, 0, 0 and 133.7

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APC INFO Monitor

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

…filter them out with simple RegEx: apc.filters = “-/home/username/public_html/apc\.php$,-/home/username/public_html/wordpress/wp-content/themes/themename/thumb\.php$,-/usr/share/psa-horde/.*,+/home/username/public_html/phpmyadmin/.*” TimThumb is a good example of a common WordPress theme plugin that may not need to be cached. Because the apc.filters RegExp only works with filenames, it is not possible to filter out an entire PHP script package,… 1, 0, 0, 0 and 66.85

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

…rated 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: mailing lists – Admin Links No such list There currently are no publicly-advertised Mailman mailing lists on visit the administrators configuration page for an unadvertised list, open a URL… […]

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

…1; that brought down the server. I did an assessment of the software, hardware and traffic load and found that there were many improvements to be made. Among the changes: Implemented a Stateful Packet Inspection firewall and Login Failure Daemonto block malicious IP addresses, malware servers, bad bots, content scrapers, etc. Many of the problems […]

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TEDxChattanooga website screenshot

TEDx Event Website

…l in the design and architecture. Developed on an Amazon EC2+Ubuntu+Webmin server running a Nginx+MySQL+PHP-FPM stack, the site should handle plenty of traffic, and can be scaled up to meet spikes in demand coinciding with the event. Please check out! Love Open Source software, but hate the generic branding? No problem. It’s very simple […]

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