ListOfErrors

Apache, Hosting 2.4 Apache Error

Speed Up Sites with htaccess Caching

Htaccess Cache Cache-Control ETag Expires Header Headers Htaccess mod_expires mod_headers

HTTP Status Codes and Htaccess ErrorDocuments

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

OpenSearch description document

SEO

Notes from Apache HTTPD Source Code

thought I'd take a break from coding and post about how open-source is such a great tool for finding the best answers to the toughest questions,

/** is the status code informational */
#define ap_is_HTTP_INFO(x)         (((x) >= 100)&&((x) < 200))
/** is the status code OK ?*/

#define ap_is_HTTP_SUCCESS(x)      (((x) >= 200)&&((x) < 300))
/** is the status code a redirect */
#define ap_is_HTTP_REDIRECT(x)     (((x) >= 300)&&((x) < 400))

/** is the status code a error (client or server) */
#define ap_is_HTTP_ERROR(x)        (((x) >= 400)&&((x) < 600))
/** is the status code a client error  */

#define ap_is_HTTP_CLIENT_ERROR(x) (((x) >= 400)&&((x) < 500))
/** is the status code a server error  */
#define ap_is_HTTP_SERVER_ERROR(x) (((x) >= 500)&&((x) < 600))

/** is the status code a (potentially) valid response code?  */
#define ap_is_HTTP_VALID_RESPONSE(x) (((x) >= 100)&&((x) < 600))

Hacking

Caching Tutorial for Webmasters

If you examine the preferences dialog of any modern Web browser (like Internet Explorer, Safari or Mozilla), you'll probably notice a 'cache' setting. This lets you set aside a section of your computer's hard disk to store representations that you've seen, just for you. The browser cache works according to fairly simple rules. It will check to make sure that the representations are fresh, usually once a session (that is, the once in the current invocation of the browser).

Optimization

SEO with Robots.txt

SEO

Fsockopen Magic

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

DreamHost Server IP Address List

Hosting

Htaccess Mod_Rewrite – Crazy Advanced Master Class

htaccess rewrite Master Class! If you understand the basics of mod_rewrite, or if you literally write the mod_rewite.c code, this article will transform your thinking. The transformation is profound. Deeply effective. Culmination of the best of the best mod_rewrite tricks for understanding and learning exactly what rewrite is doing.

Htaccess Htaccess mod_rewrite PHP RewriteCond RewriteRule

Advanced WordPress wp-config.php Tweaks

The bottom line for this article is that I want to make WordPress as fast, secure, and easy to install, run, and manage because I am using it more and more for client production sites, I will work for days in order to solve an issue so that I never have to spend time on that issue again. Time is money in this industry and that is ultimately (time) what there is to gain by tweaking WordPress.

Note: I spent no time on readability, this is primarily a read the code and figure it out article.. This is for advanced users looking for a reference or discussion and for those of you looking to advance. Feedback would be great if you make it that far..

WordPress wordpress wp-config.php

Generating AddDescription for all Files

Htaccess AddDescription Apache bash

WordPress .htaccess in-depth

WordPress uses a file named .htaccess to rewrite all requests to the main index.php file. This article explains what the htaccess file rules look like and what they actually do.

Htaccess Htaccess wordpress

Libcurl Error Codes

Hacking, Net, PHP cURL Error PHP

Mod_Rewrite Variables Cheatsheet

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

Fight Blog Spam with Apache

Fighting Blog Spam with Apache htaccess and other methods.

Htaccess

Firefox Add-ons for Web Developers

Advanced Web Development by AskApache is a Firefox Collection I created since I'm always trying new Addons out and using multiple computers and I wanted a quick and easy way to install my favorite's and keep a running list. Firebug, YSlow, LastPass, and Web Developer are the only ones I always use regularly.

I like the idea of the last.fm but it's not as powerful as the site, which is awesome. Lately listening to Kings of Leon Radio...

Software Addons Firefox Mozilla

Optimized Vimrc with 256 Colorscheme

This is not your everyday vimrc. This is my personalized vimrc.. works especially great on remote servers, in tmux, screen, etc.

This doesn't require a git checkout, a vim update, a bash update, an OS update, a plugin. No. 1 vimrc, 1 colorscheme, just use curl to download and it's on. I use this on Arch Linux, NetBSD, FreeBSD, OpenBSD, Debian, Ubuntu, Cent OS, Red Hat, and that's mostly it so far.
If you aren't already using vim as your primary editor in a powerful way, you are gonna owe me for this.

Linux .vimrc 256 Color Vim

Apache SSL in htaccess examples

SSLOptions +StrictRequire
SSLRequireSSL
SSLRequire %{HTTP_HOST} eq "google.com"
ErrorDocument 403 https://google.com

Some of the Ins and Outs of using SSL Connections with Apache.

Htaccess 301 Redirects Htaccess mod_rewrite SSL

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 ASCII Unicode

SSI in Htaccess for ErrorDocuments, DirectoryIndexing, SEO

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

Ultimate Htaccess Part II

Here is even more information from the Ultimate Htaccess Part I. For now this is very rough and you will want to come back later to read it.

Htaccess Apache HTTP Server Htaccess World Wide Web

Running a Reverse Proxy in Apache

Hosting

PHP File Uploads

PHP

Optimize a Website for Speed, Security, and Easy Management

Learn how to setup, configure, secure, optimize, and create a low-maintenance website the AskApache way. I'm piecing together all the hacks, tricks, methods, and ideas discussed throughout this blog and all across Netdom and glueing them all together to show you how to have the most optimized, crazy fastest, and best website setup I can think of.

Hosting Apache HTTP Server Caching Htaccess HTTP linux operating systems round-robin DNS technology Web Developer Web server

Htaccess File Sample

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

Mod_Status tricks to View Apache Module Directives

Quick and easy method to get a list of all Apache Modules currently loaded, a list of all the directives each module provides, a list of currently used directives, etc... These directives can be used in httpd.conf and/or .htaccess files so it is definately useful to know which ones are available and which ones are currently being used.

Htaccess Apache bash lynx mod_rewrite mod_status server-info server-status

Debugging Tools for Windows

I am almost ready to publish the final tutorial on using ssh tunnels from a truecrypt partition on a Windows machine. Of course I choose to go way overboard in my research and the tutorial is full of some pretty awesome windows tricks.. I will come back to this post soon and post all the other advanced tools I use for debugging windows, for now though you MUST know how to debug the kernel and use these basic debugging tools.

Windows Assemblers basic debugging tools Debug Debuggers Debugging Kernel

Advanced HTTP Request and Response Header Viewer

.htaccess Plugin Blocks Spam, Hackers, and Password Protects Blog

Well what can I say, other than this is sooo DOPE! Here is a list of the modules this plugin (version 4.7 unreleased) will automatically detect. I compiled the list myself using every module included with any default Apache installation for ALL the versions listed below, 1.3 to 2.2+

Want to know something else I'm including in this plugin? For each and every module that is detected, this plugin can then detect ALL of the modules .htaccess Directives! For instance, RewriteRule, AccessFileName, AddHandler, etc.. are each a directive belonging to a module that is allowed to be used from within .htaccess files.

Talk about sick.. these tricks have the diamond disease!

WordPress Advanced Anti-Exploit Anti-Spam Htaccess RewriteCond RewriteRule security SSL THE_REQUEST

Htaccess Mod_Rewrite – Guidedddd

Htaccess Apache HTTP Server Htaccess Redirect rewrite RewriteBase RewriteCond RewriteEngine RewriteLock RewriteLog RewriteMap RewriteOptions RewriteRule

Introducing the Online Figlet ASCII Generator

Look at the text "askapache". That's pretty boring huh? It would be cool to have a nerdy textual representation of that for extra nerdy stuff like styling my /robots.txt file, email list signatures, forum sigs, etc. But who has time to create that by hand? If only there were an online tool to create it..

Bam.

Web Design

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 Apache HTTP Server CGI Common Gateway Interface Htaccess HTTP 403 interpreter PHP php interpreter php.ini security SuEXEC

3 Ways to Serve PDF Files using Htaccess Cookies, Headers, Rewrites

FYI, using the Mod_Rewrite Variables Cheatsheet makes this example, and all advanced .htaccess code easier to understand. This demo lets you set a cookie with 1 of 3 values, then you just request the pdf file with a normal link click and get 1 of 3 different responses. This is accomplished with a nice bit of .htaccess code.

Htaccess Htaccess HTTP cookie JavaScript PDF pdf.js Portable Document Format

SEO in WordPress

WordPress

Blocking Bad Bots and Scrapers with .htaccess

Want to block a bad robot or web scraper using .htaccess files? Here are 2 methods that illustrate blocking 436 various user-agents.

Htaccess

Help the Free Software Foundation

Net Coreboot Free Software Foundation FSF GNU GNU/Linux Microsoft Windows

Mod_Rewrite Basic Examples

mod_rewrite is very useful in many situations. Yet some behaviors were not so obvious when I started to mess with it. After many testings, I understand it much better, now. Having said that, I do not pretend to know it perfectly. I also make mistakes.

Htaccess

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 centos compression InnoDB lz4 MariaDB MySQL

Get Yesterdays Time in Htaccess

Say you want to Serve Alternate Content based on Time, but instead of serving based off the current time, you want to serve based off yesterdays time, and using .htaccess mod_rewrite rules?

Htaccess Htaccess mod_rewrite RewriteCond RewriteRule TIME TIME_DAY TIME_MIN TIME_MON TIME_SEC