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ASCII Chart

Wanted to stick this here for a reference, mostly for me. I use ASCII alot in bash, preg_matches, preg_replace, etc..

Linux

WordPress Plugin for Apache .htaccess Security

Askapache Password Protect Security Features

  1. gzip's previous .htaccess file and sends it as an attachment to the logged in users email account along with password user setup.
  2. Now also works for sites running on SSL (PHP version >4.3.0)
  3. Rewrote the security module code in the form of snort, nessus, and mod_security rules and signatures
  4. Added a *real* check to see if mod_rewrite is installed
  5. Added Modules that remove directoryindexes
  6. Much more on the way..

WordPress

SEO Secrets of AskApache.com

Learn how in a year, with no previous blogging experience this blog was able to rank so high in search engines and achieve 15,000 unique visitors every day. Uses combination of tricks and tips from throughout AskApache.com for Search Engine Optimization.

SEO

Wget Trick to Download from Restrictive Sites

Before
wget 403 Forbidden After trick
wget bypassing restrictions
I am often logged in to my servers via SSH, and I need to download a file like a WordPress plugin. I've noticed many sites now employ a means of blocking robots like wget from accessing their files. Most of the time they use .htaccess to do this. So a permanent workaround has wget mimick a normal browser.

Linux

The Latest and Greatest php.ini

Grab the latest php.ini developmental version and discover new or previously hidden php runtime configuration settings... ahead of everyone else!

PHP

DNS Round Robin Configuration using Rsync over SSH

The goal is to add the HostGator server to be an exact mirror of the s.askapache.net domain, then to add that server as a 2nd A record to my DNS zone. That way half the visitors to the size will be taking up resources and bandwidth on the HostGator server instead of mine.

Round Robin A records in DNS are intended to evenly distribute queries between each host of the same name. Using some tricks straight out of a hackers toolbox we can verify if the distribution is taking place. (It is.)

Optimization

Securing php.ini and php.cgi with .htaccess

If you have a php.cgi or php.ini file in your /cgi-bin/ directory or other pub directory, try requesting them from your web browser. If your php.ini shows up or worse you are able to execute your php cgi, you'll need to secure it ASAP. This shows several ways to secure these files, and other interpreters like perl, fastCGI, bash, csh, etc.

Htaccess

SEO Redirects without mod_rewrite

Web Professionals use mod_rewrite to issue 301 and 302 Redirects for Search Engines. Sometimes you may not have mod_rewrite.c or you want an alternative redirect method. Using mod_alias RedirectMatch you can use REGEX in Redirect commands!

Htaccess

PHP htaccess tips and tricks

Htaccess php tips and tricks for the Apache HTTPD Web Server, mostly these tips show you how to run customized versions with customized php.ini files, I require custom php.ini files because they are so useful!

PHP

MariaDB with LZ4 Compression Howto for CentOS

I really really wanted to run the latest MariaDB with LZ4 Page Compression.. it is a game changer for many types of large databases I deal with. So I compiled it manually in a way that is repeatable and follows best-practices and it's now powering this site. Now I can use InnoDB Page Compression with lzo, lzma, bzip2, snappy, or my favorite algorithm: LZ4.

Thought this would be a good chance to post a howto, and show that there is a lot you can do by compiling software yourself and breaking the package management one-click install shackles.

Linux, MySQL

MySQL Performance Tuning Scripts and Know-How

mysql-tuning-primerUnless you are a total linux-freak-guru like myself, and even if you are, it can be enormously challenging and somewhat overwhelming to locate and eliminate MySQL bottlenecks. While many DBAs focus on improving the performance of the queries themselves, this post will focus on the highest-impact items: MySQL Server Performance and OS Performance for MySQL. Specifically showing 4 awesome tools to auto-tune your MySQL and a few more tools just for monitoring!

MySQL