Even though at the moment I'm more into AJAX and simple behavioural unobtrusive javascript more than java, I still remember how excited I was back in 1995 when Sun released both beta and alpha Java versions to the public.. In fact I still have my Java 1.0 Unleashed book, which I'm looking at right now.
Javascript
Hosting, Htaccess, Linux, PHP Htaccess php-fpm
Hacking, Net, PHP cURL Error PHP
Check out ReadWriteWeb's fantastic list of uniquely useful search engines, its a lot of fun!
Google
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
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
WordPress plugin gives you control over HTTP Basic Authentication for your WordPress blog which among other things, stops most automated hacking attempts and exploits being attempted, cutting down on the number of requests, connections, and mysql queries for all WordPress blogs on the Internet.
WordPress
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
Updated to now also show the type of permalink configured for your blog. Including what type of internal permalinking, pathinfo, mod_rewrite, etc.. Also shows contents of blogs current .htaccess file and provides a link to directly edit.
WordPress
Use php.ini to add HTTP Headers to output PHP
FallBackResource is a great alternative to using mod_rewrite to direct Apache to send all requests for non-existing files/directories to a script in WordPress. Htaccess and Server Config enabled.
Apache, httpd 2.4 FallbackResource Htaccess mod_dir mod_rewrite RewriteBase RewriteRule wordpress

Stop wasting your lives with Mac Terminals.. or Macs. Get a real machine and then get a real shell multiplexer! For many years we all loved GNU Screen, but tmux is by far a better option today. The only time I am in the shell and not using a multiplexer, is when I'm not on one of my machines. My Arch Linux machines all run URxvt and my .bash_profiles all start tmux automataically, whether in X or single-user mode, tmux is where it's at.
Hacking, Linux linux.bash Screen shell tmux
Ever wanted to execute commands on your server through php? Now you can. I'm calling this file (see below) shell.php and it allows you to run commands on your web server with the same permissions that your php executable has.
Hacking AJAX PHP
Find and Replace tool in Adobe DreamWeaver is useful of course, but you aren't using a fraction of the power until you use REGEX.
Software
One of the biggest speed bottlenecks of sites today are images, specifically unoptimized images or large scaled images. With Apaches Rewrite module we can convert all existing jpegs and png files (and most gifs) to webp, then transparently rewrite them so that a request for img.png from a browser that supports webp will receive img.webp.
Hosting, Htaccess, Optimization accept Header png RewriteCond RewriteRule vary webp
A souped-up version of the Apache printenv script for hard-core server environment debuggery.
#!/bin/sh
echo -e "Content-type: text/plainnn"
...
__T "CURRENT PROCESS CMDLINE"
{
for p in `echo /proc/[0-9]*/cmdline`;
do
pid=${p:6:$((${#p}-13))}
[[ $pid == $PPID || $pid == $$ ]] && continue;
__M "[ /proc/$pid ]";
sed 's/x00/ /g;G' $p 2>/dev/null
done
}
fi Hosting Apache HTTP Server Apache server CGI Common Gateway Interface Htaccess
Nifty SEO tip to get Search Engine Bots to check your site every hour until you finish working on it and tell them you are finished.
SEO
The Admin Bar in WordPress is always shown when in the backend administration area no matter what.
You are given the option to show/hide the admin bar when viewing the site, but there is no option to show/hide the admin bar when using the backend... So I created a plugin to provide that option on profile pages.
Why hide the admin bar in backend?
Normally I like the admin-bar and usually have it enabled, but it's nice to be able to switch it on/off from the "Edit Profile" page. The biggest reason for not loading/showing the admin_bar in the backend is SPEED. Here are 2 instances where I hide it-
· Sites with many authors/admins
· Moderating Comments on a Mobile Phone
WordPress PHP WordPress Plugin
One of the most cost-effective ways to drive traffic to your Web site is to optimize it for search engines. Many of them use automated programs called "crawlers" or "spiders" to create an index of the Web, which they use to determine what sites are most relevant to users' queries. These programs essentially visit Web sites, read the pages' content, and follow any links to other pages, repeating the process
SEO
Using memcache for me personally and the client sites I work on, has improved performance by over 1000%, in some cases even higher than that. It is a truly revolutionary way to optimize the performance of MySQL queries, remote requests such as to twitter or other apis, and this article is step 1. Plan is to go all the way to step 10 in future articles, it it grossly underused and misused in the WP world.
Optimization, WordPress Cache Load memcache memcached performance server speed
WordPress json_encode memory PHP wordpress
This is the 10th anniversary of the Alexa Toolbar, July 17, 1997. Do you remember what the Net looked like back then? Netscape was the most popular browser. AOL had released it's first Instant Messenger program in Beta. Jodie Foster's new movie Contact was number one at the box office.
Software
Learn how to make YOUR DreamHost promo codes work much better for YOU! This is not about promo-codes, this is about a simple method you should implement.
Hosting
Recently I had to setup a script to curl 10k urls, but it could only do 500 requests at any one time. In order to work under that limit, I created a function that returns the number of currently running processes on the machine in an extremely fast and efficient way, thus allowing the curl_multi requests to queu themselves such as GNU xargs.
PHP /proc clearstatcache Hard link PHP Process stat version_compare
Some good examples for how to use the Files and FilesMatch directives in .htaccess files and httpd.conf files for Apache.
<FilesMatch ".(htm|html|css|js|php)$">
AddDefaultCharset UTF-8
DefaultLanguage en-US
</FilesMatch>
Htaccess FilesMatch
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
Here are the steps that I take to get an SPF Record going on DreamHost
v=spf1 mx ip4:64.111.100.0/24 ip4:66.33.201.0/24 ip4:66.33.216.0/24 ip4:208.97.1 32.0/24 ip4:208.97.187.0/24 ip4:208.113.200.0/24 ip4:208.113.244.0/24 ip4:64.18.0.0/20 ip4:74.125.148.0/22 include:aspmx.googlemail.com include:_spf.google.com ~all
Hosting
Orig published 2006. I had a CD-RW drive but being a computer security researcher I had no money for blank cd-recordables. What follows is how I managed to install various operating systems on my computer (1 hard drive) without having to burn to a CD the ISO and then boot from that.
And also:
==Phrack Inc.==
Volume 0x0b, Issue 0x3f, Phile #0x0a of 0x14
|=-----------------=[ Hacking Grub for fun and profit ]=-----------------=|
Linux bash GRUB iso linux OS Phrack USB
Hacking
- When php run as Apache Module (mod_php)
- When php run as CGI
- When cgi?d php is run with wrapper (for FastCGI)
PHP CGI Htaccess PHP php.ini
Both of these pcs were behind a hardware/software firewall, and so each had their own host names, we'll say PEPSI and COKE, and they were both on a private network on the same subnet, so each belonged to a domain called MARKETING. Hacking
I had some urls show up in my google sitemaps for one of my sites with "404 Not found" errors for a bunch of urls that had "%23comment-155" looking urls instead of "#comment-155" Htaccess
Let me show you an example that works so well I am using it right now on my site. Every page in fact. If you are a young or up and coming web developer with skills to pay the bills, lets make the future Net fast, learn about optimization and refactoring while you still have the chance.
CSS
AskApache.com won the contest for May! Thanks to all of you who voted for my site! Even though AskApache won the contest according to the rules, somehow they said I cheated by giving DreamHost too much free publicity and advertising. I love DreamHost!
SEO
Web Design
NOTE: This is a very old post, I do NOT recommend DreamHost for anyone other than spammers. They are not a long-term solution.
Hosting
Hosting DreamHost Htaccess mod_security
Enter your DOMAIN_ROOT and the location of your wp-config.php or config.php, and this script finds all the mysql settings by parsing the phpbb or wordpress config file, then creates GPG encrypted backups, and saves your settings for future automation.
Shell Scripting