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@ixdy
ixdy / yubikey4-ssh-macos.md
Last active September 25, 2025 06:45
Setting up ssh public key authentication on macOS using a YubiKey 4

Setting up ssh public key authentication on macOS using a YubiKey 4

I largely followed Florin's blog post, but have a few notes to add regarding issues I encountered:

Basic setup notes

  1. I used a YubiKey 4, while the blog describes using a YubiKey NEO. I'm sure a YubiKey 5 would also work. I'm also running macOS 10.13.6.
  2. I installed GPGTools as recommended. However, as I'll note later, it seems that gpg-agent only automatically starts when gpg is used; for ssh, you'll need to ensure it's running.
  3. Before generating your keys, decide what key size you want to use. If you run the list command inside gpg --edit-card, look for the Key attributes line to see what is currently selected. On my YubiKey 4, it defaulted to 2048 bits for all keys:
Key attributes ...: rsa2048 rsa2048 rsa2048
@miguelmota
miguelmota / pubsub.go
Created October 6, 2018 21:12
Golang redis pub/sub example
package pubsub
import (
"github.com/garyburd/redigo/redis"
log "github.com/sirupsen/logrus"
)
// Service service
type Service struct {
pool *redis.Pool
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@3n21c0
3n21c0 / main.go
Last active June 21, 2026 12:51
A simple golang web server with basic logging, tracing, health check, graceful shutdown and zero dependencies
package main
import (
"context"
"flag"
"fmt"
"log"
"net/http"
"os"
"os/signal"
@vgpena
vgpena / loadModel.py
Last active November 17, 2020 16:39
Basic text classification with Keras and TensorFlow
import json
import numpy as np
import keras
import keras.preprocessing.text as kpt
from keras.preprocessing.text import Tokenizer
from keras.models import model_from_json
# we're still going to use a Tokenizer here, but we don't need to fit it
tokenizer = Tokenizer(num_words=3000)
# for human-friendly printing
@vovimayhem
vovimayhem / dev.Dockerfile
Created August 18, 2017 00:02
PhantomJS on Alpine (Docker)
# 1: Use node 6 as base:
FROM node:6-alpine
# 2: Download+Install PhantomJS, as the npm package 'phantomjs-prebuilt' won't work on alpine!
# See https://github.com/dustinblackman/phantomized
RUN set -ex \
&& apk add --no-cache --virtual .build-deps ca-certificates openssl \
&& wget -qO- "https://github.com/dustinblackman/phantomized/releases/download/2.1.1/dockerized-phantomjs.tar.gz" | tar xz -C / \
&& npm install -g phantomjs \
&& apk del .build-deps
import tensorflow as tf
import numpy as np
corpus_raw = 'He is the king . The king is royal . She is the royal queen '
# convert to lower case
corpus_raw = corpus_raw.lower()
words = []
for word in corpus_raw.split():
@negz
negz / kubedump.sh
Last active July 11, 2024 10:57
Dump Kubernetes cluster resources as YAML
#!/usr/bin/env bash
set -e
CONTEXT="$1"
if [[ -z ${CONTEXT} ]]; then
echo "Usage: $0 KUBE-CONTEXT"
exit 1
fi
@ahmetb
ahmetb / gcrgc.sh
Last active February 3, 2026 00:43
Script to clean up Google Container Registry images pushed before a particular date
#!/bin/bash
# Copyright © 2017 Google Inc.
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
@Neo23x0
Neo23x0 / nmap-cmdline
Last active March 19, 2020 17:10
Nmap Scan Params for CVE-2017-0143 MS17-010 Scanning
# Scan for CVE-2017-0143 MS17-010
# The vulnerability used by WannaCry Ransomware
#
# 1. Use @calderpwn's script
# http://seclists.org/nmap-dev/2017/q2/79
#
# 2. Save it to Nmap NSE script directory
# Linux - /usr/share/nmap/scripts/ or /usr/local/share/nmap/scripts/
# OSX - /opt/local/share/nmap/scripts/
#