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@crowell
crowell / pwning_with_radare.md
Last active December 28, 2020 08:59

radare2 is a very cool set of tools that you probably don't know how to use! Let's go through a simple exploit CTF challenge to understand how to use it for exploit development.

We'll be focusing on "ropasaurus rex" which is a simple challenge from Plaid CTF After checking out the latest and greatest radare from git, let's get started!

Open up ropasaurusrex in r2 and call analyze on the binary. We can list the functions with "afl"

@bwhite
bwhite / glass.html
Created March 30, 2014 04:29
[wearscript] Picarus samples
<html style="width:100%; height:100%; overflow:hidden">
<head>
<!-- You can include external scripts here like so... -->
<!--<script src="https://cdnjs.cloudflare.com/ajax/libs/zepto/1.0/zepto.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.5.2/underscore-min.js"></script>-->
</head>
<body style="width:100%; height:100%; overflow:hidden; margin:0">
<canvas id="canvas" width="640" height="360" style="display:block"></canvas>
<script>
function armarkers() {
@lelandbatey
lelandbatey / whiteboardCleaner.md
Last active April 25, 2024 02:01
Whiteboard Picture Cleaner - Shell one-liner/script to clean up and beautify photos of whiteboards!

Description

This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.

The script is here:

#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"

Results

@naholyr
naholyr / _service.md
Created December 13, 2012 09:39
Sample /etc/init.d script

Sample service script for debianoids

Look at LSB init scripts for more information.

Usage

Copy to /etc/init.d:

# replace "$YOUR_SERVICE_NAME" with your service's name (whenever it's not enough obvious)
@klange
klange / _.md
Last active December 2, 2023 20:36
It's a résumé, as a readable and compilable C source file. Since Hacker News got here, this has been updated to be most of my actual résumé. This isn't a serious document, just a concept to annoy people who talk about recruiting and the formats they accept résumés in. It's also relatively representative of my coding style.

Since this is on Hacker News and reddit...

  • No, I don't distribute my résumé like this. A friend of mine made a joke about me being the kind of person who would do this, so I did (the link on that page was added later). My actual résumé is a good bit crazier.
  • I apologize for the use of _t in my types. I spend a lot of time at a level where I can do that; "reserved for system libraries? I am the system libraries".
  • Since people kept complaining, I've fixed the assignments of string literals to non-const char *s.
  • My use of type * name, however, is entirely intentional.
  • If you're using an older compiler, you might have trouble with the anonymous unions and the designated initializers - I think gcc 4.4 requires some extra braces to get them working together. Anything reasonably recent should work fine. Clang and gcc (newer than 4.4, at le
@moklett
moklett / openconnect.md
Created July 24, 2012 15:21
OpenConnect VPN on Mac OS X

Unfortunately, the Cisco AnyConnect client for Mac conflicts with Pow. And by "conflicts", I mean it causes a grey-screen-of-death kernel panic anytime you connect to the VPN and Pow is installed.

As an alternative, there is OpenConnect, a command-line client for Cisco's AnyConnect SSL VPN.

Here's how to get it set up on Mac OS X:

  1. OpenConnect can be installed via homebrew:

     brew update

brew install openconnect

@andreyvit
andreyvit / tmux.md
Created June 13, 2012 03:41
tmux cheatsheet

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

@airways
airways / DWM-ON-OS-X.md
Created March 10, 2011 16:25

Installing and configuring dwm on OS X

  1. Install X11.app (it's on the OS X install disk or something.)

  2. Install dwm. You have to customize config.h a bit:

    1. Replace { MODKEY|ShiftMask, XK_q, quit, {0} }, with { MODKEY|ControlMask, XK_q, quit, {0} }, to avoid colliding with the Log Out shortcut in the Apple menu.

    If you install dwm from Homebrew, brew install dwm, this is done automatically.

@vangberg
vangberg / DWM-ON-OS-X.md
Created February 22, 2010 19:24
dwm on os x [work in progress!]

Installing and configuring dwm on OS X

  1. Install XQuartz (http://xquartz.macosforge.org) which is the development version of the X11.app that ships with OS X, which means it is way more up to date. I have had some weird issues with X11.app v. 2.3-something. XQuartz 2.5.0 fixed that.

  2. Install dwm from Homebrew, brew install dwm. This makes a bunch of necessary tweaks to the DWM configuration.

  3. Add the following script to $PATH, name it dwm-launch and chmod 755:

    cd ~

while true

@endolith
endolith / Has weird right-to-left characters.txt
Last active April 30, 2024 12:48
Unicode kaomoji smileys emoticons emoji
ּ_בּ
בּ_בּ
טּ_טּ
כּ‗כּ
לּ_לּ
מּ_מּ
סּ_סּ
תּ_תּ
٩(×̯×)۶
٩(̾●̮̮̃̾•̃̾)۶