2117 lines
52 KiB
HTML
2117 lines
52 KiB
HTML
|
|
<!doctype html>
|
|
<html lang="en" class="no-js">
|
|
<head>
|
|
|
|
<meta charset="utf-8">
|
|
<meta name="viewport" content="width=device-width,initial-scale=1">
|
|
|
|
<meta name="description" content="Trent's blog of mostly technical documentations.">
|
|
|
|
|
|
|
|
|
|
<link rel="canonical" href="https://blog.trentsonlinedocs.xyz/posts/raspberrypi-lte-failover-router-with-dns-caching/">
|
|
|
|
<link rel="icon" href="../../assets/images/favicon.png">
|
|
<meta name="generator" content="mkdocs-1.2.2, mkdocs-material-7.2.6">
|
|
|
|
|
|
|
|
<title>RaspberryPi LTE-Failover Router With DNS Caching - Trent's Blog</title>
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="../../assets/stylesheets/main.802231af.min.css">
|
|
|
|
|
|
<link rel="stylesheet" href="../../assets/stylesheets/palette.3f5d1f46.min.css">
|
|
|
|
|
|
|
|
<meta name="theme-color" content="#ffffff">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
|
|
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,400i,700%7CRoboto+Mono&display=fallback">
|
|
<style>:root{--md-text-font-family:"Roboto";--md-code-font-family:"Roboto Mono"}</style>
|
|
|
|
|
|
|
|
|
|
<link rel="stylesheet" href="../../extra.css">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<meta property="og:type" content="website" />
|
|
<meta property="og:title" content="Trent's Blog - RaspberryPi LTE-Failover Router With DNS Caching" />
|
|
<meta property="og:description" content="Trent's blog of mostly technical documentations." />
|
|
<meta property="og:url" content="https://blog.trentsonlinedocs.xyz/posts/raspberrypi-lte-failover-router-with-dns-caching/" />
|
|
<meta property="og:image" content="https://blog.trentsonlinedocs.xyz/photos/PXL_20211006_142214161_672x504.png" />
|
|
<meta property="og:image:type" content="image/png" />
|
|
<meta property="og:image:width" content="672" />
|
|
<meta property="og:image:height" content="504" />
|
|
|
|
<meta name="twitter:card" content="summary_large_image" />
|
|
<meta name="twitter:site" content="@BoringTrent" />
|
|
<meta name="twitter:creator" content="@BoringTrent" />
|
|
<meta name="twitter:title" content="Trent's Blog - RaspberryPi LTE-Failover Router With DNS Caching" />
|
|
<meta name="twitter:description" content="Trent's blog of mostly technical documentations." />
|
|
<meta name="twitter:image" content="https://blog.trentsonlinedocs.xyz/photos/PXL_20211006_142214161_672x504.png" />
|
|
|
|
<link href="https://blog.trentsonlinedocs.xyz/feed_rss_created.xml" type="application/rss+xml" rel="alternate" title="Trent's Blog - RSS Feed Created"/>
|
|
<link href="https://blog.trentsonlinedocs.xyz/feed_rss_updated.xml" type="application/rss+xml" rel="alternate" title="Trent's Blog - RSS Feed Updated"/>
|
|
|
|
|
|
</head>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<body dir="ltr" data-md-color-scheme="default" data-md-color-primary="white" data-md-color-accent="">
|
|
|
|
|
|
<script>function __prefix(e){return new URL("../..",location).pathname+"."+e}function __get(e,t=localStorage){return JSON.parse(t.getItem(__prefix(e)))}</script>
|
|
|
|
<input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off">
|
|
<input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off">
|
|
<label class="md-overlay" for="__drawer"></label>
|
|
<div data-md-component="skip">
|
|
|
|
|
|
<a href="#introduction" class="md-skip">
|
|
Skip to content
|
|
</a>
|
|
|
|
</div>
|
|
<div data-md-component="announce">
|
|
|
|
</div>
|
|
|
|
<header class="md-header" data-md-component="header">
|
|
<nav class="md-header__inner md-grid" aria-label="Header">
|
|
<a href="../.." title="Trent's Blog" class="md-header__button md-logo" aria-label="Trent's Blog" data-md-component="logo">
|
|
|
|
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 8a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3 3 3 0 0 0 3 3m0 3.54C9.64 9.35 6.5 8 3 8v11c3.5 0 6.64 1.35 9 3.54 2.36-2.19 5.5-3.54 9-3.54V8c-3.5 0-6.64 1.35-9 3.54z"/></svg>
|
|
|
|
</a>
|
|
<label class="md-header__button md-icon" for="__drawer">
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M3 6h18v2H3V6m0 5h18v2H3v-2m0 5h18v2H3v-2z"/></svg>
|
|
</label>
|
|
<div class="md-header__title" data-md-component="header-title">
|
|
<div class="md-header__ellipsis">
|
|
<div class="md-header__topic">
|
|
<span class="md-ellipsis">
|
|
Trent's Blog
|
|
</span>
|
|
</div>
|
|
<div class="md-header__topic" data-md-component="header-topic">
|
|
<span class="md-ellipsis">
|
|
|
|
RaspberryPi LTE-Failover Router With DNS Caching
|
|
|
|
</span>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
|
|
<label class="md-header__button md-icon" for="__search">
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5z"/></svg>
|
|
</label>
|
|
|
|
<div class="md-search" data-md-component="search" role="dialog">
|
|
<label class="md-search__overlay" for="__search"></label>
|
|
<div class="md-search__inner" role="search">
|
|
<form class="md-search__form" name="search">
|
|
<input type="text" class="md-search__input" name="query" aria-label="Search" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="search-query" required>
|
|
<label class="md-search__icon md-icon" for="__search">
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M9.5 3A6.5 6.5 0 0 1 16 9.5c0 1.61-.59 3.09-1.56 4.23l.27.27h.79l5 5-1.5 1.5-5-5v-.79l-.27-.27A6.516 6.516 0 0 1 9.5 16 6.5 6.5 0 0 1 3 9.5 6.5 6.5 0 0 1 9.5 3m0 2C7 5 5 7 5 9.5S7 14 9.5 14 14 12 14 9.5 12 5 9.5 5z"/></svg>
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
|
|
</label>
|
|
<nav class="md-search__options" aria-label="Search">
|
|
|
|
<button type="reset" class="md-search__icon md-icon" aria-label="Clear" tabindex="-1">
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M19 6.41 17.59 5 12 10.59 6.41 5 5 6.41 10.59 12 5 17.59 6.41 19 12 13.41 17.59 19 19 17.59 13.41 12 19 6.41z"/></svg>
|
|
</button>
|
|
</nav>
|
|
|
|
</form>
|
|
<div class="md-search__output">
|
|
<div class="md-search__scrollwrap" data-md-scrollfix>
|
|
<div class="md-search-result" data-md-component="search-result">
|
|
<div class="md-search-result__meta">
|
|
Initializing search
|
|
</div>
|
|
<ol class="md-search-result__list"></ol>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
</nav>
|
|
</header>
|
|
|
|
<div class="md-container" data-md-component="container">
|
|
|
|
|
|
|
|
|
|
<nav class="md-tabs" aria-label="Tabs" data-md-component="tabs">
|
|
<div class="md-tabs__inner md-grid">
|
|
<ul class="md-tabs__list">
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="../.." class="md-tabs__link">
|
|
Home
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="../../rss/" class="md-tabs__link">
|
|
RSS
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="../../links/" class="md-tabs__link">
|
|
Links
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="../ansible-kvm-router-lab-part-6/" class="md-tabs__link md-tabs__link--active">
|
|
Posts
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="https://git.boringonian.com/trent/trents_blog" class="md-tabs__link">
|
|
Source
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="https://trentpalmer.org" class="md-tabs__link">
|
|
TrentReads
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="https://blog.trentpalmer.org" class="md-tabs__link">
|
|
AttentionSpanHistory
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="https://github.com/TrentSPalmer" class="md-tabs__link">
|
|
GitHub
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="https://twitter.com/boringtrent" class="md-tabs__link">
|
|
Twitter
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="https://www.facebook.com/trentspalmer" class="md-tabs__link">
|
|
Facebook
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="https://docs.trentsonlinedocs.xyz/" class="md-tabs__link">
|
|
TrentDocs
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="https://trentsonlinedocs.xyz/hugo-themes-report/hugo-themes-report.html" class="md-tabs__link">
|
|
HugoThemesReport
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-tabs__item">
|
|
<a href="https://play.google.com/store/apps/details?id=org.trentpalmer.libre_gps_parser" class="md-tabs__link">
|
|
LibreGpsParser
|
|
</a>
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
</div>
|
|
</nav>
|
|
|
|
|
|
<main class="md-main" data-md-component="main">
|
|
<div class="md-main__inner md-grid">
|
|
|
|
|
|
|
|
<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
|
|
<div class="md-sidebar__scrollwrap">
|
|
<div class="md-sidebar__inner">
|
|
|
|
|
|
|
|
|
|
|
|
<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
|
|
<label class="md-nav__title" for="__drawer">
|
|
<a href="../.." title="Trent's Blog" class="md-nav__button md-logo" aria-label="Trent's Blog" data-md-component="logo">
|
|
|
|
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M12 8a3 3 0 0 0 3-3 3 3 0 0 0-3-3 3 3 0 0 0-3 3 3 3 0 0 0 3 3m0 3.54C9.64 9.35 6.5 8 3 8v11c3.5 0 6.64 1.35 9 3.54 2.36-2.19 5.5-3.54 9-3.54V8c-3.5 0-6.64 1.35-9 3.54z"/></svg>
|
|
|
|
</a>
|
|
Trent's Blog
|
|
</label>
|
|
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item md-nav__item--nested">
|
|
|
|
|
|
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_1" type="checkbox" id="__nav_1" >
|
|
|
|
<label class="md-nav__link" for="__nav_1">
|
|
Home
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
<nav class="md-nav" aria-label="Home" data-md-level="1">
|
|
<label class="md-nav__title" for="__nav_1">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
Home
|
|
</label>
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../.." class="md-nav__link">
|
|
Home
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-6/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 6
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-5/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 5
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-4/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 4
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-3/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 3
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-2/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 2
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-1/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 1
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../add-kvm-network-with-virsh/" class="md-nav__link">
|
|
Add KVM Network With Virsh
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../kvm-on-arch/" class="md-nav__link">
|
|
KVM On Arch
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
|
|
<input class="md-nav__toggle md-toggle" data-md-toggle="toc" type="checkbox" id="__toc">
|
|
|
|
|
|
|
|
<label class="md-nav__link md-nav__link--active" for="__toc">
|
|
RaspberryPi LTE-Failover Router With DNS Caching
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
|
|
<a href="./" class="md-nav__link md-nav__link--active">
|
|
RaspberryPi LTE-Failover Router With DNS Caching
|
|
</a>
|
|
|
|
|
|
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
|
|
|
|
|
|
|
|
|
<label class="md-nav__title" for="__toc">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
Table of contents
|
|
</label>
|
|
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#introduction" class="md-nav__link">
|
|
Introduction
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#materials" class="md-nav__link">
|
|
Materials
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#setup" class="md-nav__link">
|
|
Setup
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#configure-the-router" class="md-nav__link">
|
|
Configure The Router.
|
|
</a>
|
|
|
|
<nav class="md-nav" aria-label="Configure The Router.">
|
|
<ul class="md-nav__list">
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#resolvconf" class="md-nav__link">
|
|
resolvconf
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#interface-definitions-for-systemd-networkd" class="md-nav__link">
|
|
Interface Definitions For systemd-networkd
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#configuration-for-dnsmasq" class="md-nav__link">
|
|
Configuration For dnsmasq
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
</nav>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#reboot" class="md-nav__link">
|
|
Reboot
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#alternate-dhcp-service" class="md-nav__link">
|
|
Alternate DHCP Service
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#reference-for-systemd-networkd" class="md-nav__link">
|
|
Reference For systemd-networkd
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#use-with-multiple-computers" class="md-nav__link">
|
|
Use With Multiple Computers
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#wifi-instead-of-ethernet" class="md-nav__link">
|
|
Wifi Instead of Ethernet
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
</nav>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../debian-11-nspawn-flutter-integration-test-server/" class="md-nav__link">
|
|
Flutter Integration Test Server in Debian 11 Nspawn Container
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../debian-11-ttrss/" class="md-nav__link">
|
|
Debian 11 TT-RSS
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../trents-favorite-podcasts/" class="md-nav__link">
|
|
Trent's Favorite Podcasts
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../test-qr-svg-django/" class="md-nav__link">
|
|
Test QR SVG Django
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../prosody-photo-uploads/" class="md-nav__link">
|
|
Prosody Photo Uploads
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../xmpp-apt-notifications/" class="md-nav__link">
|
|
XMPP Apt Notification
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../apache-virtual-hosts/" class="md-nav__link">
|
|
Apache Virtual Hosts
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../sendxmpp-handler-for-python-logging/" class="md-nav__link">
|
|
SENDXMPP Handler for Python Logging
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../instructions-for-tethering-from-phone/" class="md-nav__link">
|
|
Instruction For Tethering From Phone
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../lmde4-custom-partitions-disk-encryption/" class="md-nav__link">
|
|
LMDE4 Custom Partitions for Disk Encryption
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../linux-move-cursor-with-keyboard/" class="md-nav__link">
|
|
Linux Move Cursor With Keyboard
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../simplified-raspberry-streaming/" class="md-nav__link">
|
|
Simplified Raspberry Streaming
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../clear-linux-encrypted-xfs-root/" class="md-nav__link">
|
|
Clear Linux Encrypted XFS Root
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../clear-linux-guest-virt-manager/" class="md-nav__link">
|
|
Clear Linux Guest Virt Manager
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../faster-partitioning-with-sgdisk/" class="md-nav__link">
|
|
Faster Partitioning with Sgdisk
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../lmde3-xfs-full-disk-encryption/" class="md-nav__link">
|
|
LMDE3 XFS Full Disk Encryption
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../rewrite-hugo-themes-report-in-python/" class="md-nav__link">
|
|
Rewrite Hugo Themes Report In Python
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
</ul>
|
|
</nav>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item md-nav__item--nested">
|
|
|
|
|
|
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_2" type="checkbox" id="__nav_2" >
|
|
|
|
<label class="md-nav__link" for="__nav_2">
|
|
RSS
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
<nav class="md-nav" aria-label="RSS" data-md-level="1">
|
|
<label class="md-nav__title" for="__nav_2">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
RSS
|
|
</label>
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../../rss/" class="md-nav__link">
|
|
RSS
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="/feed_rss_created.xml" class="md-nav__link">
|
|
RssCreated
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="/feed_rss_updated.xml" class="md-nav__link">
|
|
RssUpdated
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
</ul>
|
|
</nav>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item md-nav__item--nested">
|
|
|
|
|
|
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_3" type="checkbox" id="__nav_3" >
|
|
|
|
<label class="md-nav__link" for="__nav_3">
|
|
Links
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
<nav class="md-nav" aria-label="Links" data-md-level="1">
|
|
<label class="md-nav__title" for="__nav_3">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
Links
|
|
</label>
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../../links/" class="md-nav__link">
|
|
Links
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://git.boringonian.com/trent/trents_blog" class="md-nav__link">
|
|
Source
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://trentpalmer.org" class="md-nav__link">
|
|
TrentReads
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://blog.trentpalmer.org" class="md-nav__link">
|
|
AttentionSpanHistory
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://github.com/TrentSPalmer" class="md-nav__link">
|
|
GitHub
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://twitter.com/boringtrent" class="md-nav__link">
|
|
Twitter
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://www.facebook.com/trentspalmer" class="md-nav__link">
|
|
Facebook
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://docs.trentsonlinedocs.xyz/" class="md-nav__link">
|
|
TrentDocs
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://trentsonlinedocs.xyz/hugo-themes-report/hugo-themes-report.html" class="md-nav__link">
|
|
HugoThemesReport
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://play.google.com/store/apps/details?id=org.trentpalmer.libre_gps_parser" class="md-nav__link">
|
|
LibreGpsParser
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://concise-pdx.com/" class="md-nav__link">
|
|
ConcisePDX
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://trentspalmer.github.io/fcc-challenges/" class="md-nav__link">
|
|
FreeCodeCampChallenges
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://trentpalmer.work/6a57bbe24d8244289610bf57533d6c6f/" class="md-nav__link">
|
|
DeviceLayout
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
</ul>
|
|
</nav>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
|
|
|
|
|
|
<input class="md-nav__toggle md-toggle" data-md-toggle="__nav_4" type="checkbox" id="__nav_4" checked>
|
|
|
|
<label class="md-nav__link" for="__nav_4">
|
|
Posts
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
<nav class="md-nav" aria-label="Posts" data-md-level="1">
|
|
<label class="md-nav__title" for="__nav_4">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
Posts
|
|
</label>
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-6/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 6
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-5/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 5
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-4/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 4
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-3/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 3
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-2/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 2
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../ansible-kvm-router-lab-part-1/" class="md-nav__link">
|
|
Ansible KVM Router Lab Part 1
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../add-kvm-network-with-virsh/" class="md-nav__link">
|
|
Add KVM Network With Virsh
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../kvm-on-arch/" class="md-nav__link">
|
|
KVM On Arch
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item md-nav__item--active">
|
|
|
|
<input class="md-nav__toggle md-toggle" data-md-toggle="toc" type="checkbox" id="__toc">
|
|
|
|
|
|
|
|
<label class="md-nav__link md-nav__link--active" for="__toc">
|
|
RaspberryPi LTE-Failover Router With DNS Caching
|
|
<span class="md-nav__icon md-icon"></span>
|
|
</label>
|
|
|
|
<a href="./" class="md-nav__link md-nav__link--active">
|
|
RaspberryPi LTE-Failover Router With DNS Caching
|
|
</a>
|
|
|
|
|
|
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
|
|
|
|
|
|
|
|
|
<label class="md-nav__title" for="__toc">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
Table of contents
|
|
</label>
|
|
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#introduction" class="md-nav__link">
|
|
Introduction
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#materials" class="md-nav__link">
|
|
Materials
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#setup" class="md-nav__link">
|
|
Setup
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#configure-the-router" class="md-nav__link">
|
|
Configure The Router.
|
|
</a>
|
|
|
|
<nav class="md-nav" aria-label="Configure The Router.">
|
|
<ul class="md-nav__list">
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#resolvconf" class="md-nav__link">
|
|
resolvconf
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#interface-definitions-for-systemd-networkd" class="md-nav__link">
|
|
Interface Definitions For systemd-networkd
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#configuration-for-dnsmasq" class="md-nav__link">
|
|
Configuration For dnsmasq
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
</nav>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#reboot" class="md-nav__link">
|
|
Reboot
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#alternate-dhcp-service" class="md-nav__link">
|
|
Alternate DHCP Service
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#reference-for-systemd-networkd" class="md-nav__link">
|
|
Reference For systemd-networkd
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#use-with-multiple-computers" class="md-nav__link">
|
|
Use With Multiple Computers
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#wifi-instead-of-ethernet" class="md-nav__link">
|
|
Wifi Instead of Ethernet
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
</nav>
|
|
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../debian-11-nspawn-flutter-integration-test-server/" class="md-nav__link">
|
|
Flutter Integration Test Server in Debian 11 Nspawn Container
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../debian-11-ttrss/" class="md-nav__link">
|
|
Debian 11 TT-RSS
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../trents-favorite-podcasts/" class="md-nav__link">
|
|
Trent's Favorite Podcasts
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../test-qr-svg-django/" class="md-nav__link">
|
|
Test QR SVG Django
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../prosody-photo-uploads/" class="md-nav__link">
|
|
Prosody Photo Uploads
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../xmpp-apt-notifications/" class="md-nav__link">
|
|
XMPP Apt Notification
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../apache-virtual-hosts/" class="md-nav__link">
|
|
Apache Virtual Hosts
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../sendxmpp-handler-for-python-logging/" class="md-nav__link">
|
|
SENDXMPP Handler for Python Logging
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../instructions-for-tethering-from-phone/" class="md-nav__link">
|
|
Instruction For Tethering From Phone
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../lmde4-custom-partitions-disk-encryption/" class="md-nav__link">
|
|
LMDE4 Custom Partitions for Disk Encryption
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../linux-move-cursor-with-keyboard/" class="md-nav__link">
|
|
Linux Move Cursor With Keyboard
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../simplified-raspberry-streaming/" class="md-nav__link">
|
|
Simplified Raspberry Streaming
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../clear-linux-encrypted-xfs-root/" class="md-nav__link">
|
|
Clear Linux Encrypted XFS Root
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../clear-linux-guest-virt-manager/" class="md-nav__link">
|
|
Clear Linux Guest Virt Manager
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../faster-partitioning-with-sgdisk/" class="md-nav__link">
|
|
Faster Partitioning with Sgdisk
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../lmde3-xfs-full-disk-encryption/" class="md-nav__link">
|
|
LMDE3 XFS Full Disk Encryption
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="../rewrite-hugo-themes-report-in-python/" class="md-nav__link">
|
|
Rewrite Hugo Themes Report In Python
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
</ul>
|
|
</nav>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://git.boringonian.com/trent/trents_blog" class="md-nav__link">
|
|
Source
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://trentpalmer.org" class="md-nav__link">
|
|
TrentReads
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://blog.trentpalmer.org" class="md-nav__link">
|
|
AttentionSpanHistory
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://github.com/TrentSPalmer" class="md-nav__link">
|
|
GitHub
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://twitter.com/boringtrent" class="md-nav__link">
|
|
Twitter
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://www.facebook.com/trentspalmer" class="md-nav__link">
|
|
Facebook
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://docs.trentsonlinedocs.xyz/" class="md-nav__link">
|
|
TrentDocs
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://trentsonlinedocs.xyz/hugo-themes-report/hugo-themes-report.html" class="md-nav__link">
|
|
HugoThemesReport
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<li class="md-nav__item">
|
|
<a href="https://play.google.com/store/apps/details?id=org.trentpalmer.libre_gps_parser" class="md-nav__link">
|
|
LibreGpsParser
|
|
</a>
|
|
</li>
|
|
|
|
|
|
|
|
</ul>
|
|
</nav>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
|
|
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
|
|
<div class="md-sidebar__scrollwrap">
|
|
<div class="md-sidebar__inner">
|
|
|
|
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
|
|
|
|
|
|
|
|
|
<label class="md-nav__title" for="__toc">
|
|
<span class="md-nav__icon md-icon"></span>
|
|
Table of contents
|
|
</label>
|
|
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#introduction" class="md-nav__link">
|
|
Introduction
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#materials" class="md-nav__link">
|
|
Materials
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#setup" class="md-nav__link">
|
|
Setup
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#configure-the-router" class="md-nav__link">
|
|
Configure The Router.
|
|
</a>
|
|
|
|
<nav class="md-nav" aria-label="Configure The Router.">
|
|
<ul class="md-nav__list">
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#resolvconf" class="md-nav__link">
|
|
resolvconf
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#interface-definitions-for-systemd-networkd" class="md-nav__link">
|
|
Interface Definitions For systemd-networkd
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#configuration-for-dnsmasq" class="md-nav__link">
|
|
Configuration For dnsmasq
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
</nav>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#reboot" class="md-nav__link">
|
|
Reboot
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#alternate-dhcp-service" class="md-nav__link">
|
|
Alternate DHCP Service
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#reference-for-systemd-networkd" class="md-nav__link">
|
|
Reference For systemd-networkd
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#use-with-multiple-computers" class="md-nav__link">
|
|
Use With Multiple Computers
|
|
</a>
|
|
|
|
</li>
|
|
|
|
<li class="md-nav__item">
|
|
<a href="#wifi-instead-of-ethernet" class="md-nav__link">
|
|
Wifi Instead of Ethernet
|
|
</a>
|
|
|
|
</li>
|
|
|
|
</ul>
|
|
|
|
</nav>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
|
|
|
|
<div class="md-content" data-md-component="content">
|
|
<article class="md-content__inner md-typeset">
|
|
|
|
|
|
|
|
|
|
|
|
<h1>RaspberryPi LTE-Failover Router With DNS Caching</h1>
|
|
|
|
<p>date: 2021-10-06</p>
|
|
<h2 id="introduction">Introduction</h2>
|
|
<p>Apparently Windows has a problem resolving hosts when you tether from Mobile HotSpot.</p>
|
|
<p>The solution is to build a DNS-Caching router that tethers off the smartphone. This takes
|
|
advantage of Android's ability so transparently fail-over to LTE when residential
|
|
internet service goes down.</p>
|
|
<p>This solution also takes advantage of the RaspberryPi's incredibly low price,
|
|
the fact that LineageOS will run on cheap old phones that are no longer supported by the mfgr,
|
|
and the fact that GoogleFi will ship you a data-sim for free.</p>
|
|
<p>For instance, I just bought a brand-new, open-box Pixel phone for $85, and presumable the
|
|
MotoX4 can also be had for next to nothing.</p>
|
|
<h2 id="materials">Materials</h2>
|
|
<ul>
|
|
<li><a href="https://www.amazon.com/CanaKit-Raspberry-Starter-Premium-Black/dp/B07BCC8PK7" target="_blank">RaspberryPi</a>
|
|
running <a href="https://archlinuxarm.org/platforms/armv8/broadcom/raspberry-pi-3" target="_blank">Arch Linux Arm</a></li>
|
|
<li>Old Android Phone Running <a href="https://wiki.lineageos.org/devices/" target="_blank">LineageOS</a></li>
|
|
<li><a href="https://support.google.com/fi/answer/6330195?hl=en#zippy=%2Corder-your-data-only-sim" target="_blank">Free Data Sim Card From GoogleFi</a></li>
|
|
</ul>
|
|
<figure>
|
|
<img src=../../photos/PXL_20211006_142214161_672x504.png width="100%" />
|
|
<figcaption>RaspberryPi Router tethered off MotoX4 (running LineageOS)</figcaption>
|
|
</figure>
|
|
|
|
<h2 id="setup">Setup</h2>
|
|
<p>Personally I would</p>
|
|
<ul>
|
|
<li><a href="https://wiki.archlinux.org/title/OpenSSH#Force_public_key_authentication" target="_blank">secure the ssh server</a></li>
|
|
<li><a href="https://wiki.archlinux.org/title/locale" target="_blank">generate and configure the locale</a></li>
|
|
<li><a href="https://wiki.archlinux.org/title/users_and_groups" target="_blank">remove the default root password, and default user</a></li>
|
|
<li>write your preferred hostname in <code>/etc/hostname</code></li>
|
|
<li>configure your preferred timezone:
|
|
<div class="highlight"><pre><span></span><code>ln -sf /usr/share/zoneinfo/<Zone>/<SubZone> /etc/localtime
|
|
</code></pre></div></li>
|
|
</ul>
|
|
<p>Additionally, the router won't be accessible for administrative tasks when it
|
|
is behind the <em>Android Tether</em> ; for this I would use a
|
|
<a href="https://wiki.archlinux.org/title/WireGuard" target="_blank">wireguard vpn</a>.</p>
|
|
<h2 id="configure-the-router">Configure The Router.</h2>
|
|
<p>The entire configuration of the router consists of two <code>systemd-networkd</code>
|
|
interface definitions, as well as <code>/etc/resolv.conf</code>, and <code>/etc/dnsmasq.conf</code>.</p>
|
|
<h3 id="resolvconf">resolvconf</h3>
|
|
<p><code>systemd-resolved</code> is no use to us because it only listens on localhost.
|
|
<div class="highlight"><pre><span></span><code><span class="c1"># disable systemd-resolved</span>
|
|
systemctl stop systemd-resolved
|
|
systemctl disable systemd-resolved
|
|
unlink /etc/resolv.conf
|
|
</code></pre></div>
|
|
After unlinking the symlinked version of <code>/etc/resolv.conf</code>,
|
|
write your nameservers and options in a real <code>/etc/resolv.conf</code>.
|
|
<div class="highlight"><pre><span></span><code><span class="c1"># the default timeout of 5 seconds is too slow</span>
|
|
<span class="na">options timeout:1</span>
|
|
|
|
<span class="c1"># nameserver when connected to lan</span>
|
|
<span class="na">nameserver 192.168.1.1</span>
|
|
<span class="c1"># nameserver when connected to mobile network</span>
|
|
<span class="na">nameserver 8.8.8.8</span>
|
|
</code></pre></div></p>
|
|
<h3 id="interface-definitions-for-systemd-networkd">Interface Definitions For <code>systemd-networkd</code></h3>
|
|
<p>I believe the usb interfaces are numbered 1-4,
|
|
so either be careful which one you use, or maybe a wildcard name
|
|
will work, i.e. <code>Name=usb*</code>
|
|
<div class="highlight"><pre><span></span><code><span class="c1"># uplink</span>
|
|
<span class="c1"># /etc/systemd/network/usb0.network</span>
|
|
<span class="k">[Match]</span>
|
|
<span class="na">Name</span><span class="o">=</span><span class="s">usb0</span>
|
|
|
|
<span class="k">[Network]</span>
|
|
<span class="na">DHCP</span><span class="o">=</span><span class="s">yes</span>
|
|
<span class="na">DNSSEC</span><span class="o">=</span><span class="s">no</span>
|
|
<span class="na">IPForward</span><span class="o">=</span><span class="s">yes</span>
|
|
</code></pre></div>
|
|
<div class="highlight"><pre><span></span><code><span class="c1"># downlink, ethernet cable</span>
|
|
<span class="c1"># /etc/systemd/network/eth0.network</span>
|
|
<span class="k">[Match]</span>
|
|
<span class="na">Name</span><span class="o">=</span><span class="s">eth0</span>
|
|
|
|
<span class="k">[Network]</span>
|
|
<span class="na">Address</span><span class="o">=</span><span class="s">10.12.34.1/24</span>
|
|
<span class="na">DHCPServer</span><span class="o">=</span><span class="s">yes</span>
|
|
<span class="na">IPForward</span><span class="o">=</span><span class="s">yes</span>
|
|
<span class="na">IPMasquerade</span><span class="o">=</span><span class="s">both</span>
|
|
</code></pre></div></p>
|
|
<h3 id="configuration-for-dnsmasq">Configuration For <code>dnsmasq</code></h3>
|
|
<p>Install <a href="https://wiki.archlinux.org/title/dnsmasq" target="_blank">dnsmasq</a>,
|
|
and enable it <code>systemctl enable dnsmasq</code>.
|
|
<div class="highlight"><pre><span></span><code><span class="c1"># /etc/dnsmasq.conf</span>
|
|
<span class="na">resolv-file</span><span class="o">=</span><span class="s">/etc/resolv.conf</span>
|
|
<span class="na">interface</span><span class="o">=</span><span class="s">eth0</span>
|
|
<span class="na">no-dhcp-interface</span><span class="o">=</span><span class="s">eth0</span>
|
|
</code></pre></div></p>
|
|
<h2 id="reboot">Reboot</h2>
|
|
<p>Plug in the Android Phone, reboot the RaspberryPi, and when it comes back up
|
|
toggle on the USB tether on the Android Phone.</p>
|
|
<p>Plug ethernet cable into Windows Computer, open <strong>CMD</strong> prompt and type
|
|
<code>ping google.com</code> to test connectivity and name resolution. Or on a
|
|
Linux computer type <code>ping -c 3 google.com</code>.</p>
|
|
<h2 id="alternate-dhcp-service">Alternate DHCP Service</h2>
|
|
<p>You can use <code>dnsmasq</code> for DHCP Service instead of <code>systemd-networkd</code>.
|
|
<div class="highlight"><pre><span></span><code><span class="c1"># downlink, ethernet cable</span>
|
|
<span class="c1"># /etc/systemd/network/eth0.network</span>
|
|
<span class="k">[Match]</span>
|
|
<span class="na">Name</span><span class="o">=</span><span class="s">eth0</span>
|
|
|
|
<span class="k">[Network]</span>
|
|
<span class="na">Address</span><span class="o">=</span><span class="s">10.12.34.1/24</span>
|
|
<span class="c1"># DHCPServer=yes</span>
|
|
<span class="na">IPForward</span><span class="o">=</span><span class="s">yes</span>
|
|
<span class="na">IPMasquerade</span><span class="o">=</span><span class="s">both</span>
|
|
</code></pre></div>
|
|
<div class="highlight"><pre><span></span><code><span class="c1"># /etc/dnsmasq.conf</span>
|
|
<span class="na">resolv-file</span><span class="o">=</span><span class="s">/etc/resolv.conf</span>
|
|
<span class="na">interface</span><span class="o">=</span><span class="s">eth0</span>
|
|
<span class="c1"># no-dhcp-interface=eth0</span>
|
|
<span class="na">dhcp-range</span><span class="o">=</span><span class="s">10.12.34.50,10.12.34.150</span>
|
|
</code></pre></div></p>
|
|
<h2 id="reference-for-systemd-networkd">Reference For <code>systemd-networkd</code></h2>
|
|
<ul>
|
|
<li>examples in <code>/usr/lib/systemd/network/</code></li>
|
|
<li><a href="https://www.freedesktop.org/software/systemd/man/systemd.network.html" target="_blank">Man Page</a></li>
|
|
</ul>
|
|
<h2 id="use-with-multiple-computers">Use With Multiple Computers</h2>
|
|
<p>Just add an
|
|
<a href="https://www.amazon.com/Ethernet-Splitter-Optimization-Unmanaged-TL-SG108/dp/B00A121WN6" target="_blank">unmanaged switch</a>.</p>
|
|
<h2 id="wifi-instead-of-ethernet">Wifi Instead of Ethernet</h2>
|
|
<p>Use downlink definition for <code>wlan0</code> instead of <code>eth0</code>,
|
|
and install <code>hostapd</code>
|
|
<div class="highlight"><pre><span></span><code><span class="c1"># /etc/hostapd/hostapd.conf</span>
|
|
<span class="na">interface</span><span class="o">=</span><span class="s">wlan0</span>
|
|
<span class="na">hw_mode</span><span class="o">=</span><span class="s">g</span>
|
|
<span class="na">channel</span><span class="o">=</span><span class="s">7</span>
|
|
<span class="na">wmm_enabled</span><span class="o">=</span><span class="s">0</span>
|
|
<span class="na">macaddr_acl</span><span class="o">=</span><span class="s">0</span>
|
|
<span class="na">auth_algs</span><span class="o">=</span><span class="s">1</span>
|
|
<span class="na">ignore_broadcast_ssid</span><span class="o">=</span><span class="s">0</span>
|
|
<span class="na">wpa</span><span class="o">=</span><span class="s">2</span>
|
|
<span class="na">wpa_key_mgmt</span><span class="o">=</span><span class="s">WPA-PSK</span>
|
|
<span class="na">wpa_pairwise</span><span class="o">=</span><span class="s">TKIP</span>
|
|
<span class="na">rsn_pairwise</span><span class="o">=</span><span class="s">CCMP</span>
|
|
<span class="na">ssid</span><span class="o">=</span><span class="s">NETWORK</span>
|
|
<span class="na">wpa_passphrase</span><span class="o">=</span><span class="s">PASSWORD</span>
|
|
</code></pre></div></p>
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<script src="https://giscus.app/client.js"
|
|
data-repo="TrentSPalmer/trentsblog_comments"
|
|
data-repo-id="R_kgDOGLitLQ"
|
|
data-category="Announcements"
|
|
data-category-id="DIC_kwDOGLitLc4B_VyZ"
|
|
data-mapping="og:title"
|
|
data-reactions-enabled="1"
|
|
data-emit-metadata="0"
|
|
data-theme="light"
|
|
crossorigin="anonymous"
|
|
async>
|
|
</script>
|
|
|
|
|
|
</article>
|
|
</div>
|
|
</div>
|
|
|
|
</main>
|
|
|
|
|
|
<footer class="md-footer">
|
|
|
|
<nav class="md-footer__inner md-grid" aria-label="Footer">
|
|
|
|
|
|
<a href="../kvm-on-arch/" class="md-footer__link md-footer__link--prev" aria-label="Previous: KVM On Arch" rel="prev">
|
|
<div class="md-footer__button md-icon">
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M20 11v2H8l5.5 5.5-1.42 1.42L4.16 12l7.92-7.92L13.5 5.5 8 11h12z"/></svg>
|
|
</div>
|
|
<div class="md-footer__title">
|
|
<div class="md-ellipsis">
|
|
<span class="md-footer__direction">
|
|
Previous
|
|
</span>
|
|
KVM On Arch
|
|
</div>
|
|
</div>
|
|
</a>
|
|
|
|
|
|
|
|
<a href="../debian-11-nspawn-flutter-integration-test-server/" class="md-footer__link md-footer__link--next" aria-label="Next: Flutter Integration Test Server in Debian 11 Nspawn Container" rel="next">
|
|
<div class="md-footer__title">
|
|
<div class="md-ellipsis">
|
|
<span class="md-footer__direction">
|
|
Next
|
|
</span>
|
|
Flutter Integration Test Server in Debian 11 Nspawn Container
|
|
</div>
|
|
</div>
|
|
<div class="md-footer__button md-icon">
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M4 11v2h12l-5.5 5.5 1.42 1.42L19.84 12l-7.92-7.92L10.5 5.5 16 11H4z"/></svg>
|
|
</div>
|
|
</a>
|
|
|
|
</nav>
|
|
|
|
<div class="md-footer-meta md-typeset">
|
|
<div class="md-footer-meta__inner md-grid">
|
|
<div class="md-footer-copyright">
|
|
|
|
Made with
|
|
<a href="https://squidfunk.github.io/mkdocs-material/" target="_blank" rel="noopener">
|
|
Material for MkDocs
|
|
</a>
|
|
|
|
</div>
|
|
|
|
<div class="md-footer-social">
|
|
|
|
|
|
|
|
<a href="https://twitter.com/boringtrent" target="_blank" rel="noopener" title="trent on twitter" class="md-footer-social__link">
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M459.37 151.716c.325 4.548.325 9.097.325 13.645 0 138.72-105.583 298.558-298.558 298.558-59.452 0-114.68-17.219-161.137-47.106 8.447.974 16.568 1.299 25.34 1.299 49.055 0 94.213-16.568 130.274-44.832-46.132-.975-84.792-31.188-98.112-72.772 6.498.974 12.995 1.624 19.818 1.624 9.421 0 18.843-1.3 27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z"/></svg>
|
|
</a>
|
|
|
|
|
|
|
|
<a href="https://www.facebook.com/trentspalmer" target="_blank" rel="noopener" title="trent on facebook" class="md-footer-social__link">
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 512 512"><path d="M504 256C504 119 393 8 256 8S8 119 8 256c0 123.78 90.69 226.38 209.25 245V327.69h-63V256h63v-54.64c0-62.15 37-96.48 93.67-96.48 27.14 0 55.52 4.84 55.52 4.84v61h-31.28c-30.8 0-40.41 19.12-40.41 38.73V256h68.78l-11 71.69h-57.78V501C413.31 482.38 504 379.78 504 256z"/></svg>
|
|
</a>
|
|
|
|
|
|
|
|
<a href="https://github.com/TrentSPalmer" target="_blank" rel="noopener" title="trent on github" class="md-footer-social__link">
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 496 512"><path d="M165.9 397.4c0 2-2.3 3.6-5.2 3.6-3.3.3-5.6-1.3-5.6-3.6 0-2 2.3-3.6 5.2-3.6 3-.3 5.6 1.3 5.6 3.6zm-31.1-4.5c-.7 2 1.3 4.3 4.3 4.9 2.6 1 5.6 0 6.2-2s-1.3-4.3-4.3-5.2c-2.6-.7-5.5.3-6.2 2.3zm44.2-1.7c-2.9.7-4.9 2.6-4.6 4.9.3 2 2.9 3.3 5.9 2.6 2.9-.7 4.9-2.6 4.6-4.6-.3-1.9-3-3.2-5.9-2.9zM244.8 8C106.1 8 0 113.3 0 252c0 110.9 69.8 205.8 169.5 239.2 12.8 2.3 17.3-5.6 17.3-12.1 0-6.2-.3-40.4-.3-61.4 0 0-70 15-84.7-29.8 0 0-11.4-29.1-27.8-36.6 0 0-22.9-15.7 1.6-15.4 0 0 24.9 2 38.6 25.8 21.9 38.6 58.6 27.5 72.9 20.9 2.3-16 8.8-27.1 16-33.7-55.9-6.2-112.3-14.3-112.3-110.5 0-27.5 7.6-41.3 23.6-58.9-2.6-6.5-11.1-33.3 2.6-67.9 20.9-6.5 69 27 69 27 20-5.6 41.5-8.5 62.8-8.5s42.8 2.9 62.8 8.5c0 0 48.1-33.6 69-27 13.7 34.7 5.2 61.4 2.6 67.9 16 17.7 25.8 31.5 25.8 58.9 0 96.5-58.9 104.2-114.8 110.5 9.2 7.9 17 22.9 17 46.4 0 33.7-.3 75.4-.3 83.6 0 6.5 4.6 14.4 17.3 12.1C428.2 457.8 496 362.9 496 252 496 113.3 383.5 8 244.8 8zM97.2 352.9c-1.3 1-1 3.3.7 5.2 1.6 1.6 3.9 2.3 5.2 1 1.3-1 1-3.3-.7-5.2-1.6-1.6-3.9-2.3-5.2-1zm-10.8-8.1c-.7 1.3.3 2.9 2.3 3.9 1.6 1 3.6.7 4.3-.7.7-1.3-.3-2.9-2.3-3.9-2-.6-3.6-.3-4.3.7zm32.4 35.6c-1.6 1.3-1 4.3 1.3 6.2 2.3 2.3 5.2 2.6 6.5 1 1.3-1.3.7-4.3-1.3-6.2-2.2-2.3-5.2-2.6-6.5-1zm-11.4-14.7c-1.6 1-1.6 3.6 0 5.9 1.6 2.3 4.3 3.3 5.6 2.3 1.6-1.3 1.6-3.9 0-6.2-1.4-2.3-4-3.3-5.6-2z"/></svg>
|
|
</a>
|
|
|
|
|
|
|
|
<a href="/rss" target="_blank" rel="noopener" title="rss" class="md-footer-social__link">
|
|
<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path d="M400 32H48C21.49 32 0 53.49 0 80v352c0 26.51 21.49 48 48 48h352c26.51 0 48-21.49 48-48V80c0-26.51-21.49-48-48-48zM112 416c-26.51 0-48-21.49-48-48s21.49-48 48-48 48 21.49 48 48-21.49 48-48 48zm157.533 0h-34.335c-6.011 0-11.051-4.636-11.442-10.634-5.214-80.05-69.243-143.92-149.123-149.123-5.997-.39-10.633-5.431-10.633-11.441v-34.335c0-6.535 5.468-11.777 11.994-11.425 110.546 5.974 198.997 94.536 204.964 204.964.352 6.526-4.89 11.994-11.425 11.994zm103.027 0h-34.334c-6.161 0-11.175-4.882-11.427-11.038-5.598-136.535-115.204-246.161-251.76-251.76C68.882 152.949 64 147.935 64 141.774V107.44c0-6.454 5.338-11.664 11.787-11.432 167.83 6.025 302.21 141.191 308.205 308.205.232 6.449-4.978 11.787-11.432 11.787z"/></svg>
|
|
</a>
|
|
|
|
</div>
|
|
|
|
</div>
|
|
</div>
|
|
</footer>
|
|
|
|
</div>
|
|
<div class="md-dialog" data-md-component="dialog">
|
|
<div class="md-dialog__inner md-typeset"></div>
|
|
</div>
|
|
<script id="__config" type="application/json">{"base": "../..", "features": ["navigation.tabs"], "translations": {"clipboard.copy": "Copy to clipboard", "clipboard.copied": "Copied to clipboard", "search.config.lang": "en", "search.config.pipeline": "trimmer, stopWordFilter", "search.config.separator": "[\\s\\-]+", "search.placeholder": "Search", "search.result.placeholder": "Type to start searching", "search.result.none": "No matching documents", "search.result.one": "1 matching document", "search.result.other": "# matching documents", "search.result.more.one": "1 more on this page", "search.result.more.other": "# more on this page", "search.result.term.missing": "Missing", "select.version.title": "Select version"}, "search": "../../assets/javascripts/workers/search.409db549.min.js", "version": null}</script>
|
|
|
|
|
|
<script src="../../assets/javascripts/bundle.756773cc.min.js"></script>
|
|
|
|
|
|
</body>
|
|
</html> |