ageis

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.

sergey-dryabzhinsky

###
# Proxmox or other server kernel params cheap tune and secure.
# Try it if you have heavy load on server - network or memory / disk.
# No harm assumed but keep your eyes open.
#
# @updated: 2020-02-06 - more params used, adjust some params values, more comments on params
#

### NETWORK ###

wido

#!/usr/bin/env python3
"""
Generate a random IPv6 address for a specified subnet
"""

from random import seed, getrandbits
from ipaddress import IPv6Network, IPv6Address

subnet = '2001:db8:100::/64'

ageis

⚠️ Content below I now consider obsolete. My latest guide is now located here: Technical guide for using YubiKey series 4 for GPG and SSH. Please consult that resource instead.

---

Quick GPG Smartcard Guide

rvill

lsusb -v 2> /dev/null | grep -e "Apple Inc" -A 2

sumeetpareek

#!/usr/bin/env python2
"""A very simple Apache access log parser in Python

usage help = http://i.imgur.com/XBiX2kX.png

when required arguments are missing = http://i.imgur.com/P5L0GZV.png

when incorrect file path is passed = http://i.imgur.com/sJDc0om.png

successful sample output = http://i.imgur.com/iH89mwI.png

hrldcpr

One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:

def tree(): return defaultdict(tree)

That's it!