ypandit

[Unit]
Description=X Virtual Frame Buffer Service
After=network.target

[Service]
ExecStart=/usr/bin/Xvfb :99 -screen 0 1024x768x24

[Install]
WantedBy=multi-user.target

lonetwin

import logging
import fcntl
from contextlib import contextmanager

@contextmanager
def locked_open(filename, mode='r'):
    """locked_open(filename, mode='r') -> <open file object>
    
       Context manager that on entry opens the path `filename`, using `mode`
       (default: `r`), and applies an advisory write lock on the file which

fikr4n

#!/usr/bin/python3
"""An interactive Python interpreter to play with GTK+ without blocking the console

Usage:
./pygigtk.py

You don't need to call 'Gtk.main' in the console, just start using Gtk, such as
creating a window and 'show_all' it. Gtk, GObject, etc have been imported.

Author: fikr4n <github.com/fikr4n>

jrelo

Source material:
  http://security.stackexchange.com/questions/24444/what-is-the-most-hardened-set-of-options-for-gcc-compiling-c-c
  https://wiki.gentoo.org/wiki/Hardened_Gentoo
  https://wiki.debian.org/Hardening

================================================================================================================>
GCC Security related flags and options:

CFLAGS="-fPIE -fstack-protector-all -D_FORTIFY_SOURCE=2" 
LDFLAGS="-Wl,-z,now -Wl,-z,relro"

fntlnz

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

Brainiarc7

Useful Examples of ffmpeg and GNU parallel on the command-line:

Transcoding FLAC music to Opus:

ffmpeg is a highly useful application for converting music and videos. However, audio transcoding is limited to a a single core. If you have a large FLAC archive and you wanted to compress it into the efficient Opus codec, it would take forever with the fastest processor to complete, unless you were to take advantage of all cores in your CPU.

parallel 'ffmpeg -v 0 -i "{}" -c:a libopus -b:a 128k "{.}.opus"' ::: $(find -type f -name '*.flac')

Transcoding Videos to VP9:

rioki

//
// Debug Helpers
// 
// Copyright (c) 2015 - 2017 Sean Farrell <[email protected]>
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is

magnetikonline

List all Git repository objects by size

• Summary
• Example

Summary

Bash script which will:

• Iterate all commits made within a Git repository.

chrisengelsma

#ifndef _POLYNOMIAL_REGRESSION_H
#define _POLYNOMIAL_REGRESSION_H  __POLYNOMIAL_REGRESSION_H
/**
 * PURPOSE:
 *
 *  Polynomial Regression aims to fit a non-linear relationship to a set of
 *  points. It approximates this by solving a series of linear equations using 
 *  a least-squares approach.
 *
 *  We can model the expected value y as an nth degree polynomial, yielding

aparrish