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Oct 20, 2008 Advanced WordPress wp-config.php Tweaks ~. [] or forcing them to re-validate whenever I change the suffix. This takes advantage of the

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PHP Session File Hacks

What they say about kung-fu is true..

It can be attained by anyone through hard work over time. You can become as good as the amount of work you put in. Here’s a short look at a basic technique that I use. Simply reverse engineering the source code and taking notes along the way…

static void php_session_send_cookie(TSRMLS_D)
  if (SG(headers_sent)) {
          if (output_start_filename) {
                  php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot send session cookie - headers already sent by (output started at %s:%d)",
                          output_start_filename, output_start_lineno);
          } else {
                  php_error_docref(NULL TSRMLS_CC, E_WARNING, "Cannot send session cookie - headers already sent");
          }
          return;
  }
 
  /* URL encode session_name and id because they might be user supplied */
  e_session_name = php_url_encode(PS(session_name), strlen(PS(session_name)), NULL);

Tags: Cache, Cookies, Examples, GET, HTTP Headers, Nice, Perl, PHP, php.ini, Port, ram, Security, server, servers, Sessions, Shell, shell script, SSI, stat, umask, xargs
Posted in Apache, DreamHost, Featured, Hacking, Linux Unix BSD, PHP, Security, Server Administration, Shell Scripting, Web Hosting, Webmaster, WiredTree, WordPress | Published on 06/24/2010 |No Comments »

Questions I Ask Web Hosting Companies, Before Buying

The following is a transcript of a chat I had with a company called tektonic, and at that time I was looking for a cheap linux host to use for some redundancy/failover operations. I generally contact a new hosting company like this every few months.. I like to have options available in case of some kind of failure or network attack, so it’s always a good idea to have a few ace linux servers in your back pocket.

If you’ve read any other articles on AskApache, you can see a certain obsession towards optimization, speed, and security — so that is the purpose of the following questions.

Tags: askapache, DreamHost, Examples, Hosting, Linux, Powweb, server, servers, tutorial, VPS, Web Hosts, WiredTree
Posted in DreamHost, Featured, Linux Unix BSD, Making Money, Review, Security, Server Administration, Web Design, Web Hosting, Webmaster, WiredTree | Published on 04/25/2010 |6 Comments »

HOWTO: Uninstall CPANEL over SSH

The following is just a quick reference of some of the commands I used to uninstall cpanel. This is for advanced users of the shell. If you aren’t that advanced and you run a single one of these commands without fully understanding it, you will probably kill your server, probably lose everything on it permanently, probably not have a website or email for weeks.. So backup all your data FIRST. Also, if you aren’t 100% sure you won’t run into problems, you should contact your hosts technical support – but be prepared for some MAJOR negativity.. cpanel makes things very easy for hosts, and the last thing tech support wants is to fix a server broken by someone who doesn’t know what they are doing.

Tags: askapache, centos, Cpanel, cpanel uninstall, kill cpanel, linux find, uninstall cpanel
Posted in Apache, DreamHost, Hacking, Linux Unix BSD, Security, Server Administration, Shell Scripting, Web Hosting, Webmaster, WiredTree | Published on 04/24/2010 |No Comments »

Real-Life Htaccess Files from My Server

#### No https except to wp-admin -
# If the request is empty ( implies fopen or normal file access by a php script )
RewriteCond %{THE_REQUEST} ^$ [OR]
 
# OR if the request if for wp-admin or wp-login.php
RewriteCond %{REQUEST_URI} ^/(wp-admin|wp-login\.php).*$ [NC,OR]
 
# OR if the Referer is https
RewriteCond %{HTTP_REFERER} ^https://www.askapache.com/.*$ [NC]
 
# THEN skip the following rule, basically all this does is force https or badhost to be redirected
# BUT because of the above 3 rewritecond's, this won't break poorly written admin scripts
RewriteRule .* - [S=1]
 
RewriteCond %{HTTPS} =on [OR]
RewriteCond %{HTTP_HOST} !^www\.askapache\.com$ [NC]
RewriteRule .* http://www.askapache.com%{REQUEST_URI} [R=301,L]
 
RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /(wp-admin/.*|wp-login\.php.*)\ HTTP/ [NC]
RewriteCond %{HTTPS} !=on
RewriteRule .* https://%{SERVER_NAME}%{REQUEST_URI} [R=301,L]

Tags: AddHandler, Apache, Backups, Block IP, Cache-Control, cheatsheets, developers, errordocument, etag, htaccess tricks, http cookie, indexes, Mod_Security, open source, password protection, real world, rewritecond, rewriterule, Source Code
Posted in Apache, Apache Modules, Cache, DreamHost, Featured, Hacking, Htaccess, Linux Unix BSD, Mod_Rewrite, SEO, Security, Server Administration, Web Hosting, Webmaster | Published on 04/17/2010 |4 Comments »

30x Faster WP-Super Cache Site Speed

NOT a typo.. 30x is measurable, well-documented, and easily tested. This is what open-source is about. I haven’t had time to post much the past year, I’m always working! So I wanted to make up for that by publishing an article on a topic that would blow your mind and be something that you could actually start using and really get some benefit out of it. This is one of those articles that the majority of web hosting companies would love to see in paperback, so they could burn it.

Tags: Advanced, Apache, askapache, Backups, Bandwidth, Boot, Cache, chmod, console, devshm, DreamHost, File System, filesystem, grep, Hard Drive, HowTo, HTTPS SSL, ionice, Linux, memory bandwidth, mysql, Private Server, ram, rsync, Scripts, Security, server, servers, Shell, shell script, SLRAM, SPEED, speed improvements, SSI, stat, SymLinks, tmpfs, trick, Vulnerability, Web Hosting, webhosts, WordPress, WP-Super Cache
Posted in Apache, Cache, DNS, DreamHost, Featured, Hacking, Htaccess, Linux Unix BSD, Mod_Rewrite, PHP, Security, Server Administration, Shell Scripting, Web Design, Web Hosting, Web Tools, Webmaster, WiredTree, WordPress, WordPress Plugins | Published on 03/18/2010 |7 Comments »

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..

Tags: 301 Redirect, admin, Advanced, Ajax, Anti-Spam, Apache, askapache, bash, bash_profile, Cache, caching, cheatsheet, chmod, Cookies, CSS, debugging, Elite, encryption, error log, Examples, feed, File Permissions, File System, filesystem, GET, grep, HowTo, Htaccess, HTTP Headers, HTTPS SSL, Javascript, Linux, Login, Logs, Mod_Rewrite, Mod_Rewrite cheatsheet, mysql, password, PHP, php.ini, phpinfo, Port, post, Rewrite Tricks, rewritecond, rewriterule, Security, server, Sessions, Shell, Socket, SPEED, SSH, SSI, stat, trick, umask, Username, Web Hosting, WordPress, wp-config.php
Posted in CSS, Cache, Featured, Hacking, Htaccess, Javascript, Linux Unix BSD, Mod_Rewrite, PHP, SEO, Security, Server Administration, Shell Scripting, Web Design, Web Hosting, Webmaster, WordPress, WordPress Plugins | Published on 03/03/2010 |5 Comments »

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.

Tags: 301 Redirect, admin, Advanced, Ajax, Apache, apache server, askapache, Backups, Bandwidth, bleeding edge, blog, Cache, Cache-Control, caching, ColdFusion, compression, CSS, Dig, DNS, errordocument, Etags, Examples, expires header, feed, File Permissions, Flash, GET, Hacking, hacks, Htaccess, htaccess files, Htpasswd, HTTP Error, HTTP Headers, HTTP Status Codes, HTTPS SSL, Javascript, Linux, Login, Logs, Mod_Rewrite, Optimization, optimizations, optimized website, password, password protection, PDF, Performance, PHP, php.ini, Port, post, ram, real deal, Redirect, Redirection, Rewrite Tricks, Robot, robots, robots.txt, Scripts, search and replace, Security, server, server config, servers, SPEED, SSI, stat, SymLinks, trial and error, trick, Web Development, Web Hosting, web server, WordPress, WordPress Plugins
Posted in Apache, Cache, DreamHost, Featured, Hacking, Htaccess, Linux Unix BSD, PHP, SEO, Security, Shell Scripting, Web Design, Web Hosting, Webmaster, WordPress | Published on 02/18/2010 |9 Comments »

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?

Tags: 301 Redirect, 302 Redirect, 401, 403 Forbidden, 404 Not Found, 500, 503, admin, Advanced, Apache, askapache, authorization, Bandwidth, curl, Dig, error log, errordocument, Flash, Forms, GET, Google, Htaccess, HTTP Error, HTTP Headers, HTTP Status Codes, httpd, HTTPS SSL, If-Modified-Since, password, Perl, PHP, phpBB, Port, post, ram, Redirect, Redirection, Request Method, Security, SEO, server, servers, Sniffing, Source Code, SSI, stat, tutorial, Wget, Wireshark, WordPress
Posted in Apache, Apache Modules, DreamHost, Featured, Hacking, Htaccess, Linux Unix BSD, Mod_Rewrite, PHP, Server Administration, Web Hosting, Webmaster, WiredTree | Published on 01/04/2010 |22 Comments »

Vetted – Top 3 WordPress Speed Plugins

There are so many WordPress plugins out there now that I wanted to post my favorite 3 plugins for speeding up a WP-Powered blog. These are the 3 plugins that I install for pretty much all of my WP-Powered sites, which I run about 300 now. They work together to provide a very optimized blog for speed.

DB-Cache Reloaded does something entirely different, it saves the mysql queries that are made to the WP-database, as well as the mysql results to static files, and then through php serves those cached-files instead of re-querying the mysql database. Most mysql databases are stored on separate servers, and although many are on the same local network there is a limit to how many queries, and how many connections can take place.

So DB-Cache Reloaded basically makes WP-Super Cache work alot faster when generating the cache files, and DB-Cache Reloaded helps in a number of areas un-related to WP-Super Cache, like in the admin panel. And DB-Cache without WP-Super-Cache is a joke because it still uses the application-level and php for everything. Gotta use both (or just WPSC).

Tags: admin, Apache, askapache, AskApache Crazy Cache, Bandwidth, Bottleneck, Cache, caching, compression, Dig, filesystem, GET, httpd, mysql, Networking, password, PHP, post, Private Server, ram, Scripts, server, servers, SPEED, SSI, stat, Web Hosting, WordPress, WordPress Optimizing, WordPress Plugins, WordPress Speed, WP-Super Cache
Posted in Apache, Cache, Featured, Mod_Rewrite, Review, Server Administration, Web Hosting, Webmaster, WordPress, WordPress Plugins | Published on 11/29/2009 |13 Comments »

Custom bash_profile for Advanced Shell Users

Looking for some advanced uses for the shell? Here is ~~some of~~ my best. The shell is where 70% of my work takes place, and I have at least one terminal open almost 100% of the time, for viewing tailing color-coded logs, and of course for the SSH Tunnels that I use to route various networking through, like my email. So I decided that to standardize and create a bash_profile containing the most time-saving and helpful functions that I could use on all the various hosting environments would really be some sweet sugar, so here is my constant Work-in-progress.

It works for all shells I encounter, including BackTrack, Debian, Knoppix, Arch Linux, etc. Also works for many hosting environments I use including DreamHost, HostGator, WiredTree, and pretty much any linux VPS.

I also rely on this heavily from within shell scripts I write to access all the functions and stuff in this .bash_profile, and to do that I just do like:

#!/bin/bash
 
source ~/.bash_profile &>/dev/nulll
 
pm "PM is a function to output nice messages with color"
yn "Are you enjoying the shell" && pm "Thats great!" || pm "Perhaps you're better suited for DOS"
yn "Show Calendar" && aa_calendar
yn "Show Fortune" && aa_fortune

Tags: .bashrc, 500, admin, Advanced, Apache, askapache, Backups, bash, bash alias, bash_profile, CCZE, chmod, CNAME, Cookies, curl, Dig, DreamHost, Firefox, Forms, GET, Google, GPG, grep, HostGator, Htaccess, Htpasswd, HTTP Headers, HTTPS SSL, ionice, iostat, Linux, Networking, Nice, PHP, Port, Prompt, PS1, Python, Redirect, Redirection, Renice, Scripts, server, servers, Shell, shell script, Shell Scripting, Socket, SOCKS, SPEED, SSH, SSI, stat, SymLinks, Ulimit, Web Hosting, Wget, WiredTree, WordPress, wp-config.php, xargs
Posted in Featured, Hacking, Linux Unix BSD, Security, Shell Scripting, Web Hosting | Published on 11/23/2009 |5 Comments »

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…

Tags: 401, 403 Forbidden, 500, Accessibility, Advanced, Ajax, Apache, askapache, Backups, Cache, caching, CommandLine, console, Cookies, CSS, debugging, Dig, DNS, Email, encryption, feed, Firebug, Firefox, Flash, Forms, GET, Gmail, Google, HTTP Headers, HTTPS SSL, Javascript, Login, Networking, Nice, Pagerank, password, Performance, PHP, Port, post, ram, Scripts, Security, SEO, server, servers, SOCKS, Source Code, SPEED, SSH, SSH Tunnels, SSI, stat, tmpfs, trick, Username, Web Development, Wireshark, WordPress, YSlow
Posted in Cache, Firefox, Google, Hacking, Javascript, Making Money, Music, Review, SEO, Security, Web Design, Web Tools, Webmaster, Windows | Published on 10/18/2009 |4 Comments »

Optimizing Servers and Processes for Speed with ionice, nice, ulimit

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.

Tags: 503, Advanced, Apache, askapache, Backups, Bandwidth, bash, Blocking, Boot, Bottleneck, caching, compression, CPU, CSS, curl, Disk IO, DNS, Examples, feed, fifo, GET, httpd, ionice, iostat, Javascript, Linux, mysql, Nice, Optimization, pagefile, Performance, Perl, PHP, Port, ram, Renice, Round Robin, rsync, Scripts, Security, server, servers, Shell, shell script, Shell Scripting, Socket, SPEED, SSH, SSI, stat, taskset, trick, Ulimit, Web Hosting, WordPress, wp-config.php
Posted in Apache, Cache, Featured, Linux Unix BSD, Review, Security, Server Administration, Shell Scripting, Web Hosting, Webmaster | Published on 10/10/2009 |3 Comments »

Windows Optimization – Intense Part II

If you ever wanted to know the best way to defragment and speed up your Windows-Based PC, I mean you really wanted to know, here is the 2nd part to my article on Windows Speed Optimizing that details the process I have found works really well. Definately not a quick process, and certainly not the best ever, just my best ever and one that you only have to do once to get the benefits.
This article has a lot of incredibly useful (and FREE) tools I recommend, which you can grab and use without reading the article..

Tags: 301 Redirect, admin, Advanced, Apache, askapache, ASP, Backups, Boot, Cache, CommandLine, compression, console, Defrag, Defragmentation, Deframenting, Disk IO, File System, Firefox, Forms, GET, Google, Hard Drive, Linux, Login, MyDefrag, nsa, Optimization, PageDefrag, pagefile, PDF, Performance, PHP, Port, ram, Registry Optimization, Scanners, Scripts, Shell, SPEED, SpinRite, SSI, stat, trick, tutorial, UltraDefrag, Windows XP, Windows XP Optimization
Posted in Cache, Featured, Firefox, Hacking, Linux Unix BSD, Review, Webmaster, Windows | Published on 10/05/2009 |6 Comments »

Crazy Advanced Mod_Rewrite Tutorial

Note: Extremely ILL Content
Find the key to unlocking mod_rewrite and you WILL be sick.. sick with a diamond disease on your wrist!

Tags: 404 Not Found, admin, Advanced, Apache, askapache, Cache, cheatsheet, Cookies, Dig, errordocument, feed, FeedBurner, FeedCount, Firefox, GET, HowTo, Htaccess, htaccess rewrite, HTTP Headers, HTTP Status Codes, httpd, httpd.conf, HTTPS SSL, Linux, Mod_Rewrite, Mod_Security, Nice, Perl, PHP, Port, post, ram, Redirect, Redirection, Rewrite Tricks, rewritecond, rewriterule, Security, SEO, server, servers, SetEnvIf, SSI, stat, trick, tutorial
Posted in Apache, Apache Modules, Featured, Htaccess, Linux Unix BSD | Published on 09/11/2009 |22 Comments »

An AskApache Plugin Upgrade to Rule them All

So my blog as been rather quiet for almost a year now, and very few updates if any have been released for my Password Protection PLugin, my Google 404 Plugin, and definately not for my AskApache CrazyCache plugin, which I will be releasing last… So for all of you who’ve helped me out by sending me suggestions and notifying me of errors and sticking with it… Just wanted to say sorry about that, and thanks for all the great ideas.. Well, I’ve been sticking with it as well believe it our not. I manage to get free days once in a while, and then its time to jam.

Tags: 401, 404 Not Found, admin, Advanced, Apache, askapache, AskApache Google 404, AskApache Password Protection, ASP, authorization, bash, Cache, Cache-Control, chmod, compression, Cookies, debugging, Dig, Email, errordocument, Etags, Examples, FilesMatch, Fsockopen, GET, Google, Htaccess, htaccess files, htaccess tricks, HTTP Headers, httpd, HTTPS SSL, Javascript, Last-Modified, Logs, mod_include, Mod_Rewrite, Mod_Setenvif, Networking, Nice, password, password protection, Perl, PHP, Port, post, Python, ram, Redirect, Rewrite Tricks, rewritecond, rewriterule, Robot, robots, Scripts, Security, SEO, server, server config, servers, SetEnvIf, Shell, Socket, Source Code, SSH, SSI, stat, trick, Username, Web Hosting, Wireshark, WordPress, WordPress Plugins, WordPress Security
Posted in Apache, Apache Modules, Cache, Featured, Hacking, Htaccess, Linux Unix BSD, Mod_Rewrite, PHP, Security, Web Hosting, Web Tools, Webmaster, Windows, WordPress, WordPress Plugins | Published on 07/29/2009 |1 Comment »

Make Windows XP Blazingly Fast

Here is the basic process that I use to speed up Windows. A lot of good tips and tricks I’ve picked up over the past 15+ years of crashing and burning Windows that can transform your PC to be much faster than its ever been. The process focuses on freeing up RAM/Memory, freeing up your CPU/Processor, and optimizing your Hard Drive for a permanent solution.

Make sure to check out the free software I recommend at the end, installing them after this optimization process will keep your machine fast for a long time.

Tags: 301 Redirect, 500, Advanced, Apache, askapache, ASP, Backups, Boot, Bottleneck, Cache, console, Defrag, File System, Forms, GET, Hard Drive, Linux, Login, Logs, Nice, Optimization, pagefile, Performance, PHP, Port, ram, Security, SPEED, SSI, trick, Windows XP, Windows XP Optimization
Posted in Featured, Windows | Published on 06/27/2009 |14 Comments »

PHP and AJAX shell console

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.

Tags: 302 Redirect, 403 Forbidden, Ajax, Apache, Apache Htaccess, askapache, Backups, bash, chmod, console, errordocument, Flash, GET, Hacking, Htaccess, htaccess tutorial, HTTP-EQUIV, Javascript, Linux, Login, Mod_Rewrite, password, PHP, Port, ram, Redirect, Rewrite Tricks, rewritecond, rewriterule, Scripts, Security, server, Shell, shell console, shell script, Shell Scripting, SSI, stat, tutorial
Posted in Ajax, DreamHost, Featured, Hacking, Htaccess, Javascript, Linux Unix BSD, Mod_Rewrite, PHP, Security, Server Administration, Shell Scripting, Web Hosting, Web Tools, Webmaster | Published on 06/13/2009 |15 Comments »

DNS Round Robin Configuration using Rsync over SSH

The goal is to add the HostGator server to be an exact mirror of the static.askapache.com 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.)

Tags: 500, 503, admin, Apache, askapache, ASP, Bandwidth, Cache, caching, CNAME, CSS, Dig, DNS, DreamHost, experiments, GET, HostGator, HowTo, Htaccess, HTTPS SSL, Javascript, Linux, Logs, Networking, Nice, PHP, Port, Powweb, Prompt, PS1, Round Robin, rsync, Security, server, servers, Shell, SPEED, SSH, SSI, stat, trick, Web Hosting
Posted in Ajax, Apache, Apache Modules, Cache, Featured, Linux Unix BSD, Web Hosting | Published on 04/14/2009 |5 Comments »

Mirroring an Entire Site using Rsync over SSH

Sometimes there is an urgent need for creating an exact duplicate or “mirror” of a web site on a separate server. This could be needed for creating Round Robin Setups, Load-Balancing, Failovers, or for just plain vanilla backups. In the past I have used a lot of different methods to copy data from one server to another, including creating an archive of the whole directory and then using scp to send the file over, creating an archive and then encrypting it and then sending that file over using ftp, curl, etc., and my persistence at learning new ways to do things has paid off because now I use rsync to keep an exact replica of the entire directory on an external server, without having to use all the CPU and resources of other mirroring methods.

Tags: admin, Apache, askapache, Backups, Bandwidth, bash, chmod, compression, curl, debugging, DreamHost, Email, encryption, Forms, GET, Gmail, HostGator, HTTPS SSL, Linux, Login, Logs, password, PHP, Port, ram, Round Robin, rsync, Security, server, Shell, shell script, SPEED, SSH, SSH Tunnels, SSI, stat, WordPress
Posted in Apache, Featured, Linux Unix BSD, Security, Shell Scripting, Web Hosting | Published on 04/10/2009 |2 Comments »

AskApache Debug Viewer Plugin for WordPress

The story behind this plugin is sorta wack, but in a good way :). While doing tons of security research on permissions, authorization, access, etc.. for the Password Protection plugin (still being worked on), I needed to have unheard of debugging capabilities while working on the plugin on the various websites, webhosts, and test servers that I use to test in different environments. So I hacked together a bunch of php code that helped me debug, actually I pretty much went overkill and tried to get as much debugging info as programmatically possible, and it ended up being so much code that I took it out of my Password Protection code and made it its own plugin.

Tags: admin, Ajax, Apache, Apache Modules, askapache, authorization, Cache, chmod, Cookies, debugging, error log, fifo, File Permissions, GET, Htaccess, Login, Nice, password, password protection, PHP, php.ini, phpinfo, Port, post, ram, Rewrite Tricks, Security, server, servers, Socket, SSI, stat, umask, Username, WordPress, WordPress Development
Posted in WordPress, WordPress Plugins | Published on 04/05/2009 |1 Comment »

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