Details of the Cloudflare outage on July 2, 2019

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Details of the Cloudflare outage on July 2, 2019

13 July 2019

From John Graham-Cumming’s post on Cloudflare’s blog,

On July 2, we deployed a new rule in our WAF Managed Rules that caused CPUs to become exhausted on every CPU core that handles HTTP/HTTPS traffic on the Cloudflare network worldwide.

A very well written summary that actually acts as a pretty good advertisement for Cloudflare.

2021

12 Jul Migrating to a static site
8 Jul My favourite tweaks for Firefox
2 Jul Quickly gathering pulseaudio diagnostics
29 Jun Best btrfs + luks configuration for longevity with new hard drives
29 Jun Update on this blog
13 May Setting up Kanboard for local project management
28 Jan Mounting a local directory in a qemu/kvm virtual machine
17 Jan Flashing Mobian to the eMMC from within the PinePhone
16 Jan Searching and executing for only a set of specific file types by extension
16 Jan Scheduling a shutdown with systemd
15 Jan Enabling SSH + WiFi on Raspberry Pi OS
15 Jan Manually setting up host only networking with QEMU guest
15 Jan [Note] Playing videos on a Raspberry Pi Zero W

2020

6 Dec Quickly instantiating an Arch Linux systemd-nspawn container from Gentoo
22 Nov A short guide to setting up Matrix on Linux
16 Nov The pervasiveness of microabrasions
12 Nov Connecting a physical NIC to a Qemu Linux Guest
11 Oct Dynasty by Wedgewood – glass piece in House of Cards
27 Sep Installing Gentoo in 2020
22 Aug General knowledge and concepts for high-level discussions
22 Aug Notes from setting up a disconnected Debian Testing server
5 Jul Rotating expired Nitrokey subkeys used for password store
13 May Alarms as timers
4 Mar My principles of product management
13 Feb Pinebook Pro Review
13 Feb Wireguard + other VPNs managed by NetworkManager
1 Feb Configuring Wireguard on the Pinebook Pro in Manjaro Linux
20 Jan Finalising the return to WordPress from GatsbyJS

2019

31 Dec Looking forward to the next 10 years!
11 Dec Some Docker and Vagrant tips
30 Nov Returning to WordPress
29 Nov Understanding Mac specifics
26 Nov Working without Internet
22 Nov Switching to zsh from bash
20 Nov An uncommented guide to libvirt
17 Nov Refreshing your Debian install with debootstrap and LVM
15 Nov nftables rules for LXD
14 Nov Hello world!
5 Nov Ruthless prioritisation
23 Oct New video: Firefox 70
20 Oct Installing VSCode Open Source Edition
14 Oct New video: Linux containers
26 Aug Firefox new tab positioning behavior
26 Aug VSCode Extensions
24 Aug RHCSA Exam Prep: Part 2: Essential Tools
20 Aug Red Hat Certified System Administrator Exam Prep: Part 1: Overview
16 Aug Next steps after getting your Macbook Pro keyboard repaired
16 Aug Upgrading to Debian 10 Buster from Debian 9 Stretch
10 Aug Vanity GPG keys
9 Aug (WIP) SystemD quick reference
9 Aug Configuring and integrating Nitrokey into your workflow
23 Jul (WIP) My development environment
21 Jul Regenerative mental techniques
19 Jul Getting back up to speed with Linux
19 Jul Future of computing
13 Jul Details of the Cloudflare outage on July 2, 2019
29 Jun Adding a new disk to an existing RAID on Linux
13 Jun Showing the commit version on your static site using serverless functions
7 Jun plkt.io/
31 May Building my new home on the web
29 May Using Amplify to launch your first Gatsby app
29 May Immediate broken pipe when connecting via SSH on Gentoo under VMWare Fusion
22 Apr Debugging ebuild failure on Gentoo for lxml
17 Apr Git up and going
29 Mar Using GPG to master your identity (Part 1)
23 Mar Moving a user cron job to a systemd timer
4 Mar Building plkt.io/
21 Feb VLAN Primer
6 Feb Creating a disposable dev environment using libvirt
21 Jan Selectively applying changes with Git Stash
9 Jan 2019 Goals and Tentatives
4 Jan Fresh Ubuntu 18.04 Install
3 Jan Quickly setting up a local Tiny Tiny RSS instance with Docker

2018

20 Dec Generating smooth sine tone output on iOS
14 Dec Installing Jupyter on macOS Mojave
28 Nov ifconfig Output on macOS Mojave
23 Nov Setting up macOS Mojave
21 Nov Setting up a Docker Pi-hole DNS server for wired and wireless clients
3 Aug Book Review: The Courage To Be Disliked
13 May Understanding SHA256 Part 3
12 May Understanding SHA256 Part 2
11 May Understanding SHA256 Part 1
1 Apr Demoscene
1 Jan Running a Bitcoin node

2016

2 Nov 301: Blog has moved
21 Oct Hosting my own blog
4 Aug Creating a video montage with ffmpeg

2015

27 Dec Cloning Logical Volumes on Linux
29 Aug Google public WiFI
29 Aug Arch Linux on Dell M6800
20 Jul iOS 9 Public Beta 1 Changes
19 Apr PDF Minimalist 2015 Calendar for Printing

2013

1 Apr Setting up a git server accessible via ssh

2012

13 Apr Google’s addition of C class stock
1 Mar Backing up your Gmail account using procmail and fetchmail
26 Jan Quickly Attaching USB Devices to VirtualBox Guests using VBoxManage

2011

2 Jun Predictions for iOS 5
10 Feb HP Veer

2010

1 May Getting Started with Symbian Development

2009

2 Nov Printing to a remote printer
10 Sep KDE DPI Issue
22 Aug Sony NWZ-E438F + Video
11 Aug Movies for August 2009
26 Jul Readline
18 Jul Installing Windows XP in VirtualBox
16 Jul Looking Good…Minimally
3 Jul FreeBSD and Arch Linux
27 Jun Using your Gmail contacts in Mutt
27 Jun Recent Microsoft Developments
25 Jun Budget Intel Gaming Rig ($500)
15 Jun A tired mind cannot comprehend pointer arithmetic
14 Jun Managing gpg keys across multiple computers
1 Jun Elinks advanced URI management
26 May xf86-video-intel-2.6.3 and xorg-server-1.6.1 … a big fail
24 May Install a GNU/Linux distribution upon a USB Stick
29 Apr Squashing the PITA!

2008

16 Dec Atomicity
16 Dec Changing the default X11 Cursor
9 Dec Using xbindkeys to manage media buttons
8 Dec xf86-video-intel-2.4.3
15 Nov Compiling 2.6.27.6 using the vanilla kernel tree sources
10 Nov MigrationHeuristic
28 Oct Arch Linux and the HP Compaq 2710p
18 Oct Setting up IMAP on Mutt
7 Oct Managing your wireless connection with Wireless Tools for Linux
19 Aug Upgrading to linux-2.6.27-rc3
10 Aug Automatically logout after X is killed
9 Aug Upgrading to catalyst-8.7
8 Aug Upgrading to linux-2.6.27-rc2
4 Aug Upgrading to linux-2.6.27-rc1
1 Aug Customising Email Signatures with Fortune
28 Jul Time Saving Vim Movement Tips
20 Jul Configuring the default prompt (PS1)
15 Jul Adding additional email accounts to your email setup
12 Jul Setting up Mutt
8 Jul Making Diagrams with Xy-pic
7 Jul Changing The Default X Cursor
6 Jul My Desktop – The Terminal
30 Jun My Desktop – Music
28 Jun My Desktop – The Web
26 Jun My Desktop
25 Jun Rationale