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WireGuard Site-to-Site

Accessing a subnet that is behind a WireGuard client using a site-to-site setup

Problem Summary

We want to access a local subnet remotely, but it is behind a NAT firewall and we can't setup port forwarding. Outgoing connections work, but all incoming connections get DROPPED by the ISP's routing policy.

Solution Summary

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OpenPGP SSH access with Yubikey and GnuPG

Yubikey, Smart Cards, OpenSC and GnuPG are pain in the ass to get working. Those snippets here sould help alleviate pain.

Yubikey Config under Ubuntu

To reset and disable not used modes on Yubikey you need the ykman program

You can install it using those commands

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#!/bin/bash
#
#   arp-monitor, an ARP tables monitor
#   inspired by https://gist.github.com/maugern/30ace2764aafc683a802de2ed82f91af
#   
#   This script is intended to start on launch and run on an always connected device on a network (eg: server).
#   It scans the network with 'arp -a' and sends a notification webhook whenever recognizes a new mac address on the network.
#
#   For auto-run on login you can rename the script to a .command and add it to your Login items on Mac OS or
#   modify the script to remove the loop and take a look at crontab

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# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
[ -z "$PS1" ] && return

# don't put duplicate lines in the history. See bash(1) for more options
# ... or force ignoredups and ignorespace
HISTCONTROL=ignoredups:ignorespace

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# Compiled source #
###################
*.com
*.class
*.dll
*.exe
*.o
*.so

# Packages #

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KEYBINDINGS

byobu keybindings can be user defined in /usr/share/byobu/keybindings/ (or within .screenrc if byobu-export was used). The common key bindings are:

•   F2 - Create a new window
  

•   F3 - Move to previous window
  

• F4 - Move to next window

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#add 'node_modules' to .gitignore file

git rm -r --cached node_modules
git commit -m 'Remove the now ignored directory node_modules'
git push origin master

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Keybase proof

I hereby claim:

• I am kentukynitemare on github.
• I am molecular_eskimo (https://keybase.io/molecular_eskimo) on keybase.
• I have a public key ASB36mLjS1_5pm1g27Oi_690EhcQmurjsZ7nfqd13qi4swo

To claim this, I am signing this object:

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Using Git to Manage a Live Web Site

###Overview

As a freelancer, I build a lot of web sites. That's a lot of code changes to track. Thankfully, a Git-enabled workflow with proper branching makes short work of project tracking. I can easily see development features in branches as well as a snapshot of the sites' production code. A nice addition to that workflow is that ability to use Git to push updates to any of the various sites I work on while committing changes.

####Contents

• Prerequisites
• Getting Started