As an example, here is the boot line that I am using at the moment on an older Dell Desktop, just to illustrate module parameters and environment vars.
title Arch Linux X-256
linux /vmlinuz-linux root=UUID rw rootfstype=ext4 elevator=noop selinux=0 plymouth.enable=0 raid=noautodetect ipv6.disable=1 video=DP1:d rcutree.rcu_idle_gp_delay=1 i915.panel_ignore_lid=-1 i915.modeset=1 TERM=rxvt-256color
Linux Arch Linux Boot GRUB Kernel
Here's an example of validation links from the AskApache footer.
RSS | XHTML 1.1 | CSS 2.1
document.getElementById("validat").innerHTML += ' | <a href="http://feedvalidator.org/check.cgi?url=https://www.askapache.com/feed/">RSS</a> | <a href="http://validator.w3.org/check/referer?ss=1;outline=1;sp=1;debug">XHTML 1.1</a> | <a href="http://jigsaw.w3.org/css-validator/check/referer?warning=0">CSS 2.1</a>'; Javascript Firebug JavaScript
Htaccess 301 Redirects Htaccess
This amazing bash linux prompt does more than meets the eye. If you want to know how to become really good with technology, linux is the secret sauce behind the AskApache articles. Open Source is elixir of the web. Thanks to everyone who helped me for the past 20 years. I use linux/bsd because homey don't play, so this is geared to be as productive a prompt as I can make it.
Don't have much time.. or just don't care? Not a problem, here are the 3 lines to copy and paste - you can just paste them right in your shell to test it, or add to a startup script.
export AA_P="export PVE=\"\\033[m\\033[38;5;2m\"\$(( \`sed -n \"s/MemFree:[\\t ]\\+\\([0-9]\\+\\) kB/\\1/p\" /proc/meminfo\` / 1024 ))\"\\033[38;5;22m/\"\$((\`sed -n \"s/MemTotal:[\\t ]\\+\\([0-9]\\+\\) kB/\\1/p\" /proc/meminfo\`/ 1024 ))MB\"\\t\\033[m\\033[38;5;55m\$(< /proc/loadavg)\\033[m\";echo -en \"\""
export PROMPT_COMMAND="history -a;((\$SECONDS % 10==0 ))&&eval \"\$AA_P\";echo -en \"\$PVE\";"
export PS1="\\[\\e[m\\n\\e[1;30m\\][\$\$:\$PPID \\j:\\!\\[\\e[1;30m\\]]\\[\\e[0;36m\\] \\T \\d \\[\\e[1;30m\\][\\[\\e[1;34m\\]\\u@\\H\\[\\e[1;30m\\]:\\[\\e[0;37m\\]\${SSH_TTY} \\[\\e[0;32m\\]+\${SHLVL}\\[\\e[1;30m\\]] \\[\\e[1;37m\\]\\w\\[\\e[0;37m\\] \\n(\$SHLVL:\\!)\\\$ " && eval $AA_P Linux bash Prompt PROMPT_COMMAND PS1 sed ssh
Webmasters often use SSH to remotely admin web sites and servers, learn how to make your shell colorful and powerful using my sample .bash_profile and you can be up and running in 30 seconds!
Shell Scripting
Software
To prepare for several upcoming articles on AskApache that are focused on optimizing Servers and Sites from a server admin level, here is an article to introduce the main tools that we will be using. These tools are used to optimize CPU time for each process using nice and renice, and other tools like ionice are used to optimize the Disk IO, or Disk speed / Disk traffic for each process. Then you can make sure your mysqld and httpd processes are always fast and prioritized.
Optimization CFQ Idle linux Linux scheduler Load Nice RAM Scheduling algorithms
Part II: Example illustrating how to speed up GET/POST form submissions. Uses fsockopen to initiate a server-side background request to process the submitted data, so that the result page of the form is displayed to the client lightningly quick.
PHP
Comprehensive .htaccess example file with advanced examples in 1 htaccess sample skeleton .htaccess file with the very best apache htaccess examples... Updated frequently based on detailed info from the Apache htaccess tutorial.
Htaccess Allow AuthUserFile Deny Htaccess Redirect RewriteCond RewriteEngine RewriteRule
Part deux of Want to know how to really hack? Originally Posted: 12/28/2003
Hacking
There are a total of 57 HTTP Status Codes recognized by the Apache Web Server. Wouldn't you like to see what all those headers and their output, ErrorDocuments look like?
Htaccess 403 404 500 503 Htaccess mod_rewrite PHP RewriteCond RewriteRule
Apache .htaccess and httpd.conf have the power to send and manipulate HTTP Header Requests like sending P3P privacy headers, Content-Type: UTF-8, Content-Language, etc. The power is immense and you can do some really cool stuff with HTTP Headers!
Htaccess Header Htaccess
Htaccess Apache HTTP Server Htaccess Redirect rewrite RewriteBase RewriteCond RewriteEngine RewriteLock RewriteLog RewriteMap RewriteOptions RewriteRule
Check out this free online SEO site-scoring tool. The SEO generated report is simple, neat, and helpful. The main thing I like about it is how it is a stand-alone website, a residual money making machine.
Software
Thought I'd give you all the tips and tricks that I've learned and use when developing WordPress plugins.. which can be quite fun!
WordPress
If you want to pre-load .flv / .mp3 files into a visitors browser cache using flash, here's the actionscript I use to do it, and some ideas behind a good javascript implementation using swfobject or ufo.
Optimization
This article shows how to save and modify php session data, cookies, do anything really... without using ajax or iframes or forcing the user make a request.
PHP

3-Part article covering practical implementation of 3 advanced .htaccess features. Discover an easy way to boost your SEO the AskApache way (focus on visitors), a tip you might keep and use for life. Get some cool security tricks to use against spammers, crackers, and other nefarious sorts. Take your site's error handling to the next level, enhanced ErrorDocuments that go beyond 404's.
Htaccess SSI
A WordPress plugin that caches your entire blog for WP-Cache, I love this plugin and finally released it to the public!
WordPress
DreamHost PS gives you your own "virtual machine", protecting your CPU and RAM on your physical machine for faster websites. Here's what I like and dislike about DreamHostPS, and some of the issues and solutions for migrating.
Hosting DreamHost
Its really nice to be able to print out a webpage you are reading using your browsers built-in print feature. Using CSS you can easily transform your site into a print-friendly site.
Today I received an email from a visitor to my site requesting that I add a way to print site articles on AskApache
CSS Cascading Style Sheets nicer printing Style sheet
PHP's fsockopen function lets you open an Internet or Unix domain socket connection for connecting to a resource, and is one of the most powerful functions available in the php language.
PHP fsockopen PHP socket strace udp Unix
4.6 just released.... Check It Out.
:p
WordPress
I've had a lot of people ask about the FeedBurner FeedCount image on AskApache. Specifically how to set it up with custom messages and different colors each page view... It is pretty sweet..
Hacking Feed Count FeedBurner Htaccess
We've figured out what mod_rewrite variables look like, a cheatsheet of the actual value.
Htaccess Apache cheatsheet Htaccess htaccess file mod_rewrite PHP rewrite Rewriting
A list of API Versions and the corresponding HTTPD Version, for use in determining the version of Apache currently running without having to rely on the often inaccurate SERVER_SOFTWARE Header.
Security
Hacking philosophy