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In low Earth suborbit

Mark Feldhousen felddy

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In low Earth suborbit
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@rverst
rverst / check_semver.sh
Last active April 14, 2024 04:41
Bash script for checking a semantic version
#!/usr/bin/env bash
# https://gist.github.com/rverst/1f0b97da3cbeb7d93f4986df6e8e5695
function chsv_check_version() {
if [[ $1 =~ ^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)(-((0|[1-9][0-9]*|[0-9]*[a-zA-Z-][0-9a-zA-Z-]*)(\.(0|[1-9][0-9]*|[0-9]*[a-zA-Z-][0-9a-zA-Z-]*))*))?(\+([0-9a-zA-Z-]+(\.[0-9a-zA-Z-]+)*))?$ ]]; then
echo "$1"
else
echo ""
fi
}
@luckman212
luckman212 / v6test.sh
Last active October 23, 2023 02:38
script for pfSense to detect IPv6 router advertisements coming from a WAN interface
#!/bin/sh
# set the variable below to your FIOS interface
IF=igb0
/usr/bin/timeout 5m /usr/sbin/tcpdump -ni ${IF} 'icmp6 && ip6[40] == 134' >/tmp/${IF}_RAs.out
FSIZE=$(/usr/bin/stat -f '%z' /tmp/${IF}_RAs.out)
if [ "$FSIZE" -gt 1 ]; then
echo '<?php include("notices.inc"); $msg = "IPv6 RAs detected on interface '$IF'"; notify_via_smtp($msg);?>' | /usr/local/bin/php -q
fi
@ageis
ageis / YubiKey-GPG-SSH-guide.md
Last active May 20, 2024 09:52
Technical guide for using YubiKey series 4 for GPG and SSH

YubiKey 4 series GPG and SSH setup guide

Written for fairly adept technical users, preferably of Debian GNU/Linux, not for absolute beginners.

You'll probably be working with a single smartcard, so you'll want only one primary key (1. Sign & Certify) and two associated subkeys (2. Encrypt, 3. Authenticate). I've published a Bash function which automates this slightly special key generation process.

@FiloSottile
FiloSottile / no-aaaa.py
Created June 25, 2017 21:10
Unbound python-script to route websites over IPv4.
def init(id, cfg):
return True
def deinit(id):
return True
def inform_super(id, qstate, superqstate, qdata):
return True
domains = [
@jamesmacwhite
jamesmacwhite / Workarounds for Netflix and the blocking of IPv6 tunnels.md
Last active May 6, 2024 09:00
Prevent proxy/VPN streaming error messages from Netflix when using a Hurricane Electric IPv6 tunnel.

Workarounds for Netflix and the blocking of Hurricane Electric IPv6 tunnels

The dreaded "You seem to be using an unblocker or proxy." error message. Cool story bro.

This gist was essentially created out of my own rant about Netflix being hostile to IPv6 tunnel services since June 2016. You are welcome to read my opinion on the matter, this is the more technical side to the issue and how to combat it within your own network.

Since I wrote this, various GitHub users have contributed their thoughts and ideas which has been incorporated into this gist. Thank you to everyone who have contributed their own methods and implementations.

The problem

Netflix now treats IPv6 tunnel brokers (such as Hurricane Electric) as proxy servers. A while ago it became apparent to users and Netflix that somewhat by accident, IPv6 tunnel users were being served content outside of their geolocation because of the way Netflix was identifyi