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@lmas
lmas / icmp_ping.go
Last active April 18, 2024 11:45
Simple utility package to send ICMP pings with Go
// Copyright © 2016 Alex
//
// This program is free software: you can redistribute it and/or modify it under
// the terms of the GNU Affero General Public License as published by the Free
// Software Foundation, either version 3 of the License, or (at your option) any
// later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# extract html comments from files in current working directory recursively
from bs4 import BeautifulSoup, Comment
import os
# run the following commands to install dependencies (OS X):
# easy_install beautifulsoup4
# easy_install lxml
@subfuzion
subfuzion / curl.md
Last active October 11, 2025 00:58
curl POST examples

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

@Grimthorr
Grimthorr / pending-updates.ps1
Created November 9, 2015 16:03
PowerShell script to list the pending/missing Windows updates.
$UpdateSession = New-Object -ComObject Microsoft.Update.Session
$UpdateSearcher = $UpdateSession.CreateupdateSearcher()
$Updates = @($UpdateSearcher.Search("IsHidden=0 and IsInstalled=0").Updates)
$Updates | Select-Object Title
@joakin
joakin / git-find-me-the-fucking-deleted-file.sh
Last active September 27, 2025 02:49
finding a deleted file in a git repository
# If you don't remember the exact path/name, search the log for deleted files
git log --diff-filter=D --summary | grep delete
# Find the file you want to get from the ouput, and use the path
# Find the commits that involved that path
git log --all -- some/path/to/deleted.file
# Bring the file back to life to the current repo (sha commit of parent of commit that deleted)
git checkout shaofthecommitthatdeletedthefile^ -- some/path/to/deleted.file
@leommoore
leommoore / file_magic_numbers.md
Last active October 27, 2025 08:59
File Magic Numbers

File Magic Numbers

Magic numbers are the first bits of a file which uniquely identify the type of file. This makes programming easier because complicated file structures need not be searched in order to identify the file type.

For example, a jpeg file starts with ffd8 ffe0 0010 4a46 4946 0001 0101 0047 ......JFIF.....G ffd8 shows that it's a JPEG file, and ffe0 identify a JFIF type structure. There is an ascii encoding of "JFIF" which comes after a length code, but that is not necessary in order to identify the file. The first 4 bytes do that uniquely.

This gives an ongoing list of file-type magic numbers.

Image Files

@davewongillies
davewongillies / OpenSSL Cheatsheet.md
Last active October 27, 2025 09:58
OpenSSL Cheatsheet

General OpenSSL Commands

These commands allow you to generate CSRs, Certificates, Private Keys and do other miscellaneous tasks.

Generate a new private key and Certificate Signing Request

openssl req -out CSR.csr -new -newkey rsa:2048 -nodes -keyout privateKey.key