Search For php

30x Faster WP-Super Cache and Site Speed with TMPFS

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. Now ask yourself, if a webhost makes money based on how much memory, bandwidth, and data used by a customer, what would they not want their customers to do? That’s right, they do not want their customers to learn how to minimize and drastically reduce these moneymakers. They get giddy when you complain about slow-site-speed, or that it takes a long time for your site to load, because they have exactly the right answer- upgrade your memory, bandwidth, and data by purchasing a more expensive plan.

Tagged: Cache, devshm, filesystem, ram, ramdisk, ramfs, server, slram, speed, tmpfs | Continue...

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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).

Tagged: AskApache Crazy Cache, Cache, caching, DB-Cache Reloaded, WordPress, WordPress Optimizing, WordPress Plugins, WordPress Speed, WP-Super Cache | 8 Comments | Continue...

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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

Tagged: .bashrc, advanced, alias, bash, bash alias, bash_profile, function, linux, scripts, shell script | 4 Comments | Continue...

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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…

Tagged: askapache, Firebug, Firefox, Firefox Addons, Web Development, webdev, YSlow | 4 Comments | Continue...

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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.

Tagged: bash, chrt, CPU Scheduling, Disk IO, ionice, iostat, Nice, optimize processes, Renice, servers, Shell Scripting, taskset | 2 Comments | Continue...

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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..

Tagged: Defrag, Defragmentation, Deframenting, Disk IO, MyDefrag, PageDefrag, Registry Optimization, SpinRite, UltraDefrag, Windows XP | 5 Comments | Continue...

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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..

Tagged: admin, advanced, Cookies, debugging, htaccess, mod_rewrite, PHP, phpinfo, WordPress, wp-config.php | 4 Comments | Continue...

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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!

Tagged: advanced, askapache, cheatsheet, howto, htaccess, htaccess rewrite, mod_rewrite, tutorial | 19 Comments | Continue...

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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.

Tagged: AskApache Google 404, AskApache Password Protection, Fsockopen, WordPress Plugins, wordpress security | 1 Comment | Continue...

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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.

Tagged: File System, Hard Drive, pagefile, Windows XP Optimization | 12 Comments | Continue...

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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.

Tagged: Ajax, bash, console, Hacking, htaccess, Javascript, linux, mod_rewrite, PHP, Security, Shell, shell console, Shell Scripting | 14 Comments | Continue...

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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.)

Tagged: DNS, DreamHost, HostGator, Powweb, Round Robin, rsync, ssh | 4 Comments | Continue...

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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.

Tagged: backup, bash, encryption, mirror, password, rsync, ssh | 1 Comment | Continue...

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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.

Tagged: debugging, wordpress development | 1 Comment | Continue...

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Advanced Htaccess Demo/Example using Cookies, Headers, Rewrites

Whoa pretty sweet huh? Bet you’ve never seen that before! As I explain the htaccess code that achieves this, keep in mind this is merely one simple application for this code. It’s much more advanced than your basic htaccess trick, notice how this htaccess acts like a php script, very unusual.. I really wanted to share this trick after I created it for one of my clients because this is the tip of the iceberg. Another use would be to display an alternate style sheet depending on a users theme preference. The coolest thing about this example IMHO is that it uses multiple advanced .htaccess ideas in order for it to work, most htaccess code on the net is very singular. This code uses mod_headers to set the Content-Disposition header for forcing a download and uses mod_rewrite to do the rest.

Tagged: htaccess, htaccess rewrites, http headers, Javascript, pdf, PHP | 7 Comments | Continue...

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Htaccess SEO Trends by Google

htaccess vs. httpd.conf

Tagged: Google, SEO | 1 Comment | Continue...

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Advanced Htaccess – SSI, 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.

Tagged: Apache Htaccess, errordocument, htaccess, htaccess rewrite, mod_include, Server Side Includes, SSI, SymLinks | 1 Comment | Continue...

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Password Protection Plugin Status

Enumerating Permissions can be Annoying

Don’t ask me how because I won’t tell you, but on one of the hosts I was testing on that did not allow direct access I was able to get the Apache server running as dhapache to erroneously write a file into my users blog directory. This is a big security no-no and I now have my .htaccess file written into the blog directory where it should go, but instead of my php script’s user having write access to the file so I can modify it, its owned by dhapache! Because the file is owned by dhapache I shouldn’t even be allowed to know it exists, but there it is. So the next step was to try and take ownership of the .htaccess file so that I could modify it. I tried and tried but was unsuccessful, I couldn’t modify it so that was another dead end. Actually it took me awhile to figure out how to remove the file from my directory. Being that it was owned by dhapache I couldn’t delete or modify it using my php process or even through ftp/ssh! Sysadmins regularly run find commands that search the servers for any files owned by dhapache that should not be there as this is a big red flag that someone has found a way to manipulate dhapache which could potentially lead to modifying dhapache-owned server config files, which sometimes is all it takes to hack your website and server.. Luckily I was able to delete it by basically running the hack again to overwrite the file.

Tagged: .htaccess plugin, Apache, askapache, htaccess, password protection, Security, WordPress | 2 Comments | Continue...

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Ultimate Htaccess Tutorial for .htaccess files

This is not an introduction to .htaccess… This is the evolution of .htaccess… The BEST, the ORIGINAL, the NEWEST, and the most HIGHEST, FLYEST .htaccess tricks I can find.

Originally known as the “Ultimate .htaccess Guide”, its changed over the years by adding new .htaccess tricks and .htaccess examples to it.. I also add my favorite .htaccess links, the best .htaccess articles on AskApache, the coolest .htaccess experiments, the Web’s best .htaccess hacks, and update this article on the regular.

Tagged: .htaccess examples, Apache, Cache, caching, Files, FilesMatch, Google, Hacking, howto, htaccess, htaccess guide, htaccess help, htaccess howto, htaccess rewrite, htaccess tricks, htaccess tutorial, httpd, litespeed, mod_rewrite, Mod_Security, rewritecond, rewriterule, sample .htaccess, Security, SEO, seo secrets, SetEnvIf, ssl, ultimate htaccess | 56 Comments | Continue...

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Advanced .htaccess Tricks for Securing Sites

This is all new, experimental, and very very cool. It literally uses .htaccess techniques to create several virtual “locked gates” that require a specific key to unlock, in a specific order that cannot be bypassed. It uses whitelisting .htaccess tricks to specify exactly what is allowed, instead of trying to specify everything that isn’t allowed. Also, by setting specific cookies/tokens after successfully passing through a gate, we can then require the exact cookie/token from the previous gate, which stops an attacker from skipping or bypassing gates.

Tagged: advanced, Hacking, htaccess, mod_rewrite, phpBB, Security, ssl | 7 Comments | Continue...

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.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!

Tagged: Hacking, htaccess, htaccess rewrites, mod_rewrite, Security | 38 Comments | Continue...

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Chmod, Umask, Stat, Fileperms, and File Permissions

Unix file permissions are one of the more difficult subjects to grasp.. Well, ok maybe “grasp” isn’t the word.. Master is the right word.. Unix file permissions is a hard topic to fully master, mainly I think because there aren’t many instances when a computer user encounters them. I’ve done a lot of research on it the past couple weeks… and now here’s everything I’ve learned so far.. cuz you guys AskApache Regs Rock!

Tagged: chmod, File Permissions, fileperms, Hacking, Security, stat, umask | 5 Comments | Continue...

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.htaccess trick to show Alternate CSS file based on IP

This past week I updated my sites apache.css file for a site-redesign. I wanted to make changes to the .css file that only I could see, so that my regular traffic and site-visitors would still see the old version. Here’s the elegant solution I came up with using .htaccess and mod_rewrite that works so well I’m sharing it with all you wonderful and incredible people reading my blog :)

Tagged: CSS, htaccess, mod_rewrite, trick, tutorial | 4 Comments | Continue...

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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.

Tagged: Apache, Cache, compression, hosting, htaccess, optimization, Security, server | 5 Comments | Continue...

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COMPUTER SECURITY TOOLBOX

List of mainly obscure security software geared more for the master pentester. These are mostly for unix, bsd, and mac and many are difficult to install and setup (require custom servers, inside access points, obscure libraries). Only programs that output data are included, so no actual exploits or anything. Most of these output extremely useful albeit extremely technical information.

3 Comments | Continue...

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Mod_Rewrite Variables Cheatsheet

We’ve figured out what mod_rewrite variables look like, a cheatsheet of the actual value.

Tagged: cheatsheet, htaccess, mod_rewrite, mod_rewrite cheatsheet, rewritecond, rewriterule | 4 Comments | Continue...

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About AskApache

Purpose and Goal of AskApache
To provide free access to knowledge and data with the goal of empowering people.. or more melodramatically: “Power to the People!”
Why the name AskApache? AskApache was chosen to show and pay respect to the contributors of the Apache Web Server. Literally it means to ask Apache when facing a problem, by searching the Open-Source, contacting a board/list, or browsing the documentation.
The Author
I work for a multimedia production / brand development & marketing company here in Indianapolis, the greatest city in the world! I started this blog in Dec., ‘06 to familiarize myself with WordPress as a blogging platform among other things for my job. I help expand/create a growing companies market-share online (and offline) by managing and building the brand and developing high-quality leads and loyal customers by building online funnels fed by SEO traffic and on/offline marketing campaigns. Other than the design and development costs for our minimum 12 month contract, we operate using a gain-share formula where we receive a percentage of the increased revenue that results from our services. This translates to fanatical attention to improving the bottom-line, and focus on long-term sustainable growth and overall success.
It’s important to me to note that unlike most systems set up like this, we are absolutely interested in creating customers/leads/whatever by providing real value for them. It’s much more difficult and takes a lot longer, but it is also self-sustaining as value attracts in an exponential manner. We are likely different than any model you’ve seen before in terms of lead-sales-marketing types.
My Background
I started on DOS, then Windows 2.11 (released 1989), and learned BASIC for my first language… then IBM PC assembly followed by Java, which I used as an excuse to stop learning assembly.. …

5 Comments | Continue...

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Elite Log File Scrolling with Color Syntax

Scrolls the latest log entries for multiple log files to the current screen or to any other monitor or TTY in color using syntax highlighting, making debugging easier and saving a lot of time for multi-monitor workstations.

Tagged: bash, CCZE, Color Logs, debugging, Elite, error log, fifo, linux, Logs, shell script | 2 Comments | Continue...

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Encrypted WordPress / phpBB Backups

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.

Tagged: Backups, bash, encryption, GPG, linux, mysql, phpBB, shell script, unix, WordPress | 1 Comment | Continue...

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Fsockopen Power Plays

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.

Tagged: Cache, Fsockopen, Hacking, HTTO, linux, Networking, Performance, PHP, Pipelining, Socket | 3 Comments | Continue...

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SEO Boost from Google 404 Plugin

1 minute Install!
Turns every 404 Not Found error into a SEO traffic generating event! Now you have many unique users with unique IP addresses and cookies searching your blog on all of the Google Indexes… Sweet!

«Take My 404 for a Test-Drive

112 Comments | Continue...

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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.

Tagged: htaccess | 2 Comments | Continue...

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Fast and Easy Custom WordPress New User Registration

Registering on a WP blog requires entering a username and email then checking your email for an auto password.

Too much work to put your users through?

This uses just email and password and does it all.

3 Comments | Continue...

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Upgrading to DreamHost Private Servers

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.

14 Comments | Continue...

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Adding Akismet Anti-Spam Protection Anywhere

Wouldn’t you love to have Akismet Anti-spam protection for non-wordpress forms and pages?

Tagged: Anti-Spam, PHP, Security | 6 Comments | Continue...

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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.

Tagged: askapache, SEO, seo secrets | 5 Comments | Continue...

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Mod_Security .htaccess tricks

Mod_Security rivals Mod_Rewrite in the amount of features it provides. I decided to go ahead and post what I learned about it today, even though its tough to give away such awesome htaccess and apache tricks.. Learn how to control spam once and for all, conditionally log/deny/allow/redirect requests based on IP, username, etc.. Mod_Security is so fine!

Tagged: Hacking, htaccess, Mod_Security, Security | 8 Comments | Continue...

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Undetectable Sniffing On Ethernet

I have been in some tight spots where I had to sniff a password or two off the wire, or sniff some packets off the wire and based on the packets content perform some action… Accidentally, I stumbled on a method to sniff data while remaining undetected and invisible.

Tagged: Ethernet, Hacking, linux, nsa, Sniffing, Undetectable, wireshark | Continue...

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.Htaccess rewrites, Mod_Rewrite Tricks and Tips

htaccess rewrite / Mod_Rewrite Tips and Tricks is as glamorous as it sounds! htaccess rewrite mod_rewrite is just possibly one of the most useful Apache modules and features. The ability to rewrite requests internally as well as externally is extremely powerful.

Tagged: htaccess, htaccess rewrite, mod_rewrite, Redirecting URLS, rewrite, Rewrite Tricks, rewritecond, rewriterule | 57 Comments | Continue...

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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.

Tagged: Blocking, htaccess, mod_rewrite, Robot, Security, SetEnvIf | 17 Comments | Continue...

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