Postscreen

Postscreen is a handy feature of Postfix 2.9 and on, if you want to prevent degrading the performance of your server box with frequent external invalid requests. It actually implements a set of basic tests before the remote server could even initiate SMTP transport.  It’s features are vast, and you can read about it here. …

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Enable compression in Apache

This is a short article mostly optimized for use with WordPress. First, very simply insert this into your virtual host config file (probably in /etc/httpd/conf.d or in /etc/httpd/conf/httpd.conf if you’re using the basic Apache setup config file for the host):   #Let's set to gzip all apache's output SetOutputFilter DEFLATE #let's exclude the following file …

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