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Recursive chmod Tricks

Recursively chmod only directories find . -type d -exec chmod 755 {} \; Similarly, recursively set the execute bit on every directory chmod -R a+X * The +X flag sets the execute bit on directories only Recursively chmod only files find . -type f -exec chmod 644 {} \; Recursively chmod only PHP files (with extension .php) find . -type f -name ‘*.php’ -exec chmod 644 {} \;… 2, 0, 2, 0 and 505.95

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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 Plus, it’s out of date and vulnerable to an XSS exploit.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… 1, 0, 0, 0 and 207.56

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Remote publishing to WordPress from Facebook via RSS

…lable to RSS readers and aggregators, you must change a few settings: Edit Page > Manage Permissions Uncheck Only Admins can See Page Age Restrictions: None Country Restrictions: None Uncheck All: Users can write or post content on the wall Users can add photos Users can add tags to photos Users can add videos This will make your wall posts available to the general public, because users with restricted privacy settings cannot post to your… 2, 0, 0, 0 and 103.78

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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 ease of development, compatibility with other scripts, etc. Accordingly, the suggested configuration is for WordPr… 2, 0, 0, 0 and 103.78

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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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Apache config for Worker MPM vs Prefork MPM

Some installations of Apache will have been compiled to work with either Prefork or Worker MPM, but most by default are compiled only to work with Prefork. Changing to Worker MPM may allow your server to handle much higher traffic, more user sessions, with less RAM use. Your site or server will not scale well if it is running Prefork MPM. Worker is a bit more difficult to set up properly, and has some restrictions regarding functionality of PHP… 1, 0, 0, 0 and 51.89

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

…ic 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. This is similar to wha… 1, 0, 0, 0 and 51.89

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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 51.89

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