tcoppex

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          Writing C software without the standard library
                           Linux Edition
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There are many tutorials on the web that explain how to build a
simple hello world in C without the libc on AMD64, but most of them
stop there.

I will provide a more complete explanation that will allow you to
build yourself a little framework to write more complex programs.

reillysiemens

Signing VirtualBox Kernel Modules

These are the steps I followed enable VirtualBox on my laptop without disabling UEFI Secure Boot. They're nearly identical to the process described on [Øyvind Stegard's blog][blog], save for a few key details. The images here are borrowed from the [Systemtap UEFI Secure Boot Wiki][systemtap].

1. Install the VirtualBox package (this might be different for your platform).

   src='https://download.virtualbox.org/virtualbox/rpm/fedora/virtualbox.repo'

mtds

Virtual Networking on Linux

In the Linux Kernel, support for networking hardware and the methods to interact with these devices is standardized by the socket API:

                +----------------+
                |   Socket API   |
                +-------+--------+
                        |
User space              |

gea0

Arch Linux ARM 64 on Raspberry Pi 3 B+ With Full Disk Encryption And SSH Unlock: 2018 Edition

There are multiple ways to get a full disk encrypted arch linux system on raspberry. In this tutorial, we will install a 64-bit arch linux armv8 system, using dropbear as ssh server for remote pre-boot unlocking of the root filesystem. However, it will still be possible to unlock and use the pi as usual, with a keyboard and monitor. We will also create an unencrypted partition in the installation process, usable as a rescue system.

Differences to the 32-bit arch linux arm version:

• probably better performance
• can run 64-bit software
• comes without the proprietary video-driver blobs

scragly

Discord Emoji

Note: This is written for those using Python 3 and discord.py, so if you're using something else please reference the relevant documentation for your language or library if you choose to use this as a general reference.

On Discord, there are two different emoji types:

• Unicode Emoji
• Custom Emoji

Each needs to be handled differently, as while unicode emoji are just simple unicode characters, Discord custom emoji are special objects available only in Discord, belonging to a specific Discord guild and having their own snowflake ID.

evaera

1. Use descriptive and obvious names.
   • Don't use abbreviations, use full English words. player is better than plr.
   • Name things as directly as possible. wasCalled is better than hasBeenCalled. notify is better than doNotification.
   • Name booleans as if they are yes or no questions. isFirstRun is better than firstRun.
   • Name functions using verb forms: increment is better than plusOne. unzip is better than filesFromZip.
   • Name event handlers to express when they run. onClick is better than click.
   • Put statements and expressions in positive form.
     • isFlying instead of isNotFlying. late intead of notOnTime.
     • Lead with positive conditionals. Avoid if not something then ... else ... end.

• If we only care about the inverse of a variable, turn it into a positive name. missingValue instead of not hasValue.

Daniel-Abrecht

#!/bin/bash

# Vorhandensein der Programme prüfen
MKISOFS=( $(which genisoimage mkisofs) )

if ! [ -x "$MKISOFS" ]; then echo "genisoimage aka mkisofs is missing"; exit 1; fi
if ! [ -x "$(which gcc)" ]; then echo "gcc is missing"; exit 1; fi
if ! [ -x "$(which nasm)" ]; then echo "nasm is missing"; exit 1; fi
if ! [ -x "$(which cpio)" ]; then echo "cpio is missing"; exit 1; fi
if ! [ -x "$(which tar)" ]; then echo "tar is missing"; exit 1; fi

rodrigoborgesdeoliveira

http://www.youtube.com/watch?v=-wtIMTCHWuI
http://youtube.com/watch?v=-wtIMTCHWuI
http://m.youtube.com/watch?v=-wtIMTCHWuI
https://www.youtube.com/watch?v=lalOy8Mbfdc
https://youtube.com/watch?v=lalOy8Mbfdc
https://m.youtube.com/watch?v=lalOy8Mbfdc

http://www.youtube.com/watch?v=yZv2daTWRZU&feature=em-uploademail
http://youtube.com/watch?v=yZv2daTWRZU&feature=em-uploademail
http://m.youtube.com/watch?v=yZv2daTWRZU&feature=em-uploademail

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

epixoip

8x Nvidia GTX 1080 Hashcat Benchmarks

Product: Sagitta Brutalis 1080 (PN S3480-GTX-1080-2697-128)

Software: Hashcat v3.00-beta-145-g069634a, Nvidia driver 367.18

Accelerator: 8x Nvidia GTX 1080 Founders Edition

Highlights