timothyham

A Short IPv6 Guide for Home IPv4 Admins

This guide is for homelab admins who understand IPv4s well but find setting up IPv6 hard or annoying because things work differently. In some ways, managing an IPv6 network can be simpler than IPv4, one just needs to learn some new concepts and discard some old ones.

Let’s begin.

First of all, there are some concepts that one must unlearn from ipv4:

Concept 1

jeffehobbs

GOAL: Send a push notification after the (vibrations from the) dryer cycle has completely stopped.

USING:
  * Inexpensive hardware (see below)
  * ESPhome (http://esphome.io) for chip firmware
  * Home Assistant (http://hass.io) for sensor state machine and push notification.

---
SHOPPING LIST:

bl0rp

esphome:
  name: esp32_1
  platform: ESP32
  board: lolin32

wifi:
  ssid: !secret ssid_iot
  password: !secret password_iot
  manual_ip:
    static_ip: 192.168.0.110

AdamNaj

This code was moved

This code is usable only if you are on Home Assistant 0.114 or older

For Home Assistant 0.115 and newer please go to: https://github.com/AdamNaj/ZWaveGraphHA

ThomasR

<filetype binary="false" description="PowerShell" name="PowerShell">
  <highlighting>
    <options>
      <option name="LINE_COMMENT" value="#" />
      <option name="COMMENT_START" value="&lt;#" />
      <option name="COMMENT_END" value="#&gt;" />
      <option name="HEX_PREFIX" value="" />
      <option name="NUM_POSTFIXES" value="" />
      <option name="HAS_BRACES" value="true" />
      <option name="HAS_BRACKETS" value="true" />

pleckey

#!/bin/bash

##
# Run as sudo, then exit and package immediately
##

# Remove unnecessary packages
aptitude purge ri
aptitude purge installation-report landscape-common wireless-tools wpasupplicant ubuntu-serverguide
aptitude purge python-dbus libnl1 python-smartpm linux-headers-2.6.32-21-generic python-twisted-core libiw30

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

jacobwegner

{ "10500" : { "Corrective Action" : "Occurs when you have not agreed to the billing agreement.",
      "Error Code" : "10500",
      "Long Message" : "This transaction cannot be processed due to an invalid merchant configuration.",
      "Short Message" : "Invalid Configuration"
    },
  "10501" : { "Corrective Action" : "Occurs when the billing agreement is disabled or inactive.",
      "Error Code" : "10501",
      "Long Message" : "This transaction cannot be processed due to an invalid merchant configuration.",
      "Short Message" : "Invalid Configuration"
    },

bradland

# This is a short collection of tools that are useful for managing your
# known_hosts file. In this case, I'm using the '-f' flag to specify the
# global known_hosts file because I'll be adding many deploy users on this
# system. Simply omit the -f flag to operate on ~/.ssh/known_hosts

# Add entry for host
ssh-keyscan -H github.com >> /etc/ssh/ssh_known_hosts

# Scan known hosts
ssh-keygen -f /etc/ssh/ssh_known_hosts -F github.com