hbeatty

How to generate a sha512 hash suitable for /etc/shadow using Mac OSX

$ sudo easy_install pip
$ pip install passlib
$ python -c "from passlib.hash import sha512_crypt; import getpass,string,random; print sha512_crypt.using(salt=''.join([random.choice(string.ascii_letters + string.digits) for _ in range(16)]),rounds=5000).hash(getpass.getpass())"

btcdrak

Quick GPG Smartcard Guide

We will generate a master key with only the Certify capability and three subkeys with each of the Sign, Encrypt and Authenticate capabilities. These latter three keys are meant for daily use and will be transferred to an OpenPGP smartcard, which has three corresponding slots. The master private key can then be moved to offline cold storage, or stored on a second smartcard.

We are generating keys on a secure computer instead of on the card, because it allows more flexibility. Ideally this means a machine running Tails or one that is air-gapped and not connected to the internet.

This guide assumes that if you want to sign other peoples keys, then you will require the aforementioned secondary smartcard with your master key stored in its Signature slot, or if you only have one smartcard, then you'll have to fetch the master key out of cold storage. By default, GPG generates a master key with the Certify and

erichelgeson

$ chef --version
Chef Development Kit Version: 0.15.15
chef-client version: 12.11.18
delivery version: 0.0.23 (bf89a6b776b55b89a46bbd57fcaa615c143a09a0)
berks version: 4.3.5
kitchen version: 1.10.0

$ chef verify
Running verification for component 'berkshelf'
Running verification for component 'test-kitchen'

edt11x

#!/usr/bin/env perl
use strict;
use warnings;
use Getopt::Long;
use Pod::Usage;
use Env;

my @dirs = ();
my $help = 0;

smarr

Introductory Material

• Add Graal JIT Compilation to Your JVM Language in 5 Steps, A Tutorial http://stefan-marr.de/2015/11/add-graal-jit-compilation-to-your-jvm-language-in-5-easy-steps-step-1/

• The SimpleLanguage, an example of using Truffle with great JavaDocs. It is the officle getting-started project: https://github.com/graalvm/simplelanguage

• Truffle Tutorial, Christan Wimmer, PLDI 2016, 3h recording https://youtu.be/FJY96_6Y3a4 Slides

perfectfoolish

# How To Install Java on CentOS and Fedora
# https://www.digitalocean.com/community/tutorials/how-to-install-java-on-centos-and-fedora

wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u40-b26/jdk-8u40-linux-x64.tar.gz"

wget --no-cookies --no-check-certificate --header "Cookie: gpw_e24=http%3A%2F%2Fwww.oracle.com%2F; oraclelicense=accept-securebackup-cookie" "http://download.oracle.com/otn-pub/java/jdk/8u40-b26/jdk-8u40-linux-x64.rpm"

toioski

//
//  UIView+ClipBackgroundImageToBounds.m
//
//  Created by Barry Allard on 2013-06-18.
//  Copyright (c) 2013 Stealth Mode Industries LLC. All rights reserved.
//
//  Based on http://stackoverflow.com/questions/262156/uiimage-rounded-corners
//
//  MIT License

lavalamp

There are three easy to make mistakes in go. I present them here in the way they are often found in the wild, not in the way that is easiest to understand.

All three of these mistakes have been made in Kubernetes code, getting past code review at least once each that I know of.

1. Loop variables are scoped outside the loop.

What do these lines do? Make predictions and then scroll down.

func print(pi *int) { fmt.Println(*pi) }

cfr

// Content source: https://medium.com/@oleavr/diy-kernel-panic-os-x-and-ios-in-10-loc-c250d9649159
// HN thread: https://news.ycombinator.com/item?id=9085536

#include <unistd.h>
#include <mach/mach.h>
#include <mach-o/dyld.h>

extern kern_return_t mach_vm_protect(vm_map_t, mach_vm_address_t, mach_vm_size_t,
                                     boolean_t, vm_prot_t);

aktau

llvm[6]: ======= Finished Linking Release+Asserts Unit test ClangApplyReplacementsTests (without symbols)
llvm[6]: Compiling UniqueHeaderNameTest.cpp for Release+Asserts build
if  clang++ -I/private/tmp/llvm35-g2huGt/llvm-3.5.1.src/include -I/private/tmp/llvm35-g2huGt/llvm-3.5.1.src/tools/clang/tools/extra/unittests/clang-modernize  -D_DEBUG -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/private/tmp/llvm35-g2huGt/llvm-3.5.1.src/tools/clang/tools/extra/unittests/clang-modernize/../../../../include -I/private/tmp/llvm35-g2huGt/llvm-3.5.1.src/tools/clang/tools/extra/unittests/clang-modernize/../../../../include -I/private/tmp/llvm35-g2huGt/llvm-3.5.1.src/tools/clang/tools/extra/unittests/clang-modernize/../../clang-modernize -I/private/tmp/llvm35-g2huGt/llvm-3.5.1.src/tools/clang/tools/extra/unittests/clang-modernize/../../clang-apply-replacements/include -I/private/tmp/llvm35-g2huGt/llvm-3.5.1.src/tools/clang/tools/extra/unittests/clang-modernize/../include -I/private/tmp