TMUX
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.
ListOfErrors
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.
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.
Mod_Rewrite Variables Cheatsheet
We've figured out what mod_rewrite variables look like, a cheatsheet of the actual value.
Running a Reverse Proxy in Apache
Building strace-plus
strace+ is an improved version of strace that collects stack traces associated with each system call. Since system calls require an expensive user-kernel context switch, they are often sources of performance bottlenecks. strace+ allows programmers to do more detailed system call profiling and determine, say, which call sites led to costly syscalls and thus have potential for optimization.
DreamHost’s Private Servers Finally Rooted
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.
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 seriously, and bitwise is oldschool. This contains a listing of all possible permission masks and bits from a linux, php, and web hosting view.... cuz you guys AskApache Regs Rock!
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))
Links to htaccess tutorials and articles
Links to htaccess tutorials and howtos in the htaccess forum
30x Faster Cache and Site Speed with TMPFS
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.
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.
Failover SSH for Linux Web Hostmasters
The Latest and Greatest php.ini
Grab the latest php.ini developmental version and discover new or previously hidden php runtime configuration settings... ahead of everyone else!
Custom PHP.ini tips and tricks
- When php run as Apache Module (mod_php)
- When php run as CGI
- When cgi?d php is run with wrapper (for FastCGI)
Custom Boot Menu in Windows XP
One of the first things that I do upon receiving a new Windows computer is immediately create a poweruser-style customized boot menu. Then every time I boot I can choose Safe Mode, Recovery Console, Debug, whatever I want! It's quick and easy to set-up and everyone should have one, soo sweet!
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.PDF.js
pdf.js is an HTML5 technology experiment that explores building a faithful and efficient Portable Document Format (PDF) renderer without native code assistance.
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