Erich B ebirn

SKS Keyserver Network Under Attack

This work is released under a Creative Commons Attribution-NoDerivatives 4.0 International License.

Terminological Note

"OpenPGP" refers to the OpenPGP protocol, in much the same way that HTML refers to the protocol that specifies how to write a web page. "GnuPG", "SequoiaPGP", "OpenPGP.js", and others are implementations of the OpenPGP protocol in the same way that Mozilla Firefox, Google Chromium, and Microsoft Edge refer to software packages that process HTML data.

Who am I?

High-Performance Matrix Multiplication

This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).

Intro

Matrix multiplication is a mathematical operation that defines the product of

Usage

Set a system environment variable AUTHZ_JSON_URL that points to a JSON file with the following structure:

{
  "admins": [
    "groupA", 
    "userA"
 ],

	#!/usr/bin/env python3

	import sys
	import re

	"""
	Decode kernel message from mpt*sas, like:
	mpt3sas_cm0: log_info(0x31120303): originator(PL), code(0x12), sub_code(0x0303)
	mpt2sas_cm0: log_info(0x31120303): originator(PL), code(0x12), sub_code(0x0303)

	#!/usr/bin/python3

	import http.client
	import http.server
	import json
	import ssl
	import urllib.parse

	# AWX connection and job template details:
	AWX_HOST = 'tower.private'

	-- Description:
	-- ------------
	--
	-- This is an example schema for storing collectd metrics in a TimescaleDB
	-- dabase (see https://www.timescale.com/). It is based on the PostgreSQL
	-- schema contributed by Sebastian Harl.
	--
	-- Prerequisities:
	-- ---------------
	--

	1. Setup a project

	2. Add groovy SDK support:
	https://www.bonusbits.com/wiki/HowTo:Add_Groovy_SDK_to_IntelliJ_IDEA

	3. Download http://(yourjenkinsurl)/job/(yourpipelinejob)/pipeline-syntax/gdsl
	- this will give you the .gdsl file - download this to the src folder of your project.

	4. Finally follow this step - right click on the src folder -> Mark directory as -> Sources Root

	#!groovy

	/*
	* This script configures the Jenkins base URL.
	*/

	import jenkins.model.JenkinsLocationConfiguration

	JenkinsLocationConfiguration location = Jenkins.instance.getExtensionList('jenkins.model.JenkinsLocationConfiguration')[0]
	location.url = 'https://jenkins-as-code-poc.devtail.io/'

	#!/usr/bin/env bash

	set -o nounset -o errexit -o pipefail

	usage() {
	cat <<EOM
	Usage:
	$(basename $0) [OPTIONS]
	$(basename $0) [ -j \| --jenkins-url \| -n \| --node-name \| -s \| -d \| --desc \| --slave-home \| -e \| --executors \| -sh \| --ssh-host \| -sp \| --ssh-port
	\| -c \| --cred-id \| -l \| --labels \| -u \| --user-id \| -p \| --password \| -h \| --help ]

	node_modules
	*.pem