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@m-radzikowski
m-radzikowski / script-template.sh
Last active October 3, 2024 16:51
Minimal safe Bash script template - see the article with full description: https://betterdev.blog/minimal-safe-bash-script-template/
#!/usr/bin/env bash
set -Eeuo pipefail
trap cleanup SIGINT SIGTERM ERR EXIT
script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)
usage() {
cat <<EOF
Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...]
@dpino
dpino / ns-inet.sh
Last active October 6, 2024 13:07
Setup a network namespace with Internet access
#!/usr/bin/env bash
# set -x
if [[ $EUID -ne 0 ]]; then
echo "You must be root to run this script"
exit 1
fi
# Returns all available interfaces, except "lo" and "veth*".
@cvan
cvan / HOWTO.md
Last active October 4, 2024 20:17
How to serve a custom HTTPS domain on GitHub Pages with CloudFlare: *FREE*, secure and performant by default

Instructions

CloudFlare is an awesome reverse cache proxy and CDN that provides DNS, free HTTPS (TLS) support, best-in-class performance settings (gzip, SDCH, HTTP/2, sane Cache-Control and E-Tag headers, etc.), minification, etc.

  1. Make sure you have registered a domain name.
  2. Sign up for CloudFlare and create an account for your domain.
  3. In your domain registrar's admin panel, point the nameservers to CloudFlare's (refer to this awesome list of links for instructions for various registrars).
  4. From the CloudFlare settings for that domain, enable HTTPS/SSL and set up a Page Rule to force HTTPS redirects. (If you want to get fancy, you can also enable automatic minification for text-based assets [HTML/CSS/JS/SVG/etc.], which is a pretty cool feature if you don't want already have a build step for minification.)
  5. If you
@tevino
tevino / epoll.go
Last active January 20, 2024 22:50
An example of using epoll in Go
package main
import (
"fmt"
"net"
"os"
"syscall"
)
const (
@nerdalert
nerdalert / Netfilter-IPTables-Diagrams.md
Last active October 9, 2024 05:13
Linux NetFilter, IP Tables and Conntrack Diagrams

Linux NetFilter, IP Tables and Conntrack Diagrams

IPTABLES TABLES and CHAINS

IPTables has the following 4 built-in tables.

1) Filter Table

Filter is default table for iptables. So, if you don’t define you own table, you’ll be using filter table. Iptables’s filter table has the following built-in chains.

@vmarmol
vmarmol / client.go
Created February 9, 2015 23:21
Simple Go-based HTTP streaming via HTTP and websockets.
package main
import (
"encoding/json"
"flag"
"io"
"net/http"
"github.com/golang/glog"
"golang.org/x/net/websocket"
@softwaredoug
softwaredoug / asyncio.md
Last active January 3, 2019 20:38
Python Asyncio Notes

This is a document full of notes of all the things that have hung me up getting into Python's new asyncio library. I mostly use it for tools that schlep data around between file systems, databases, and search engines for work. So lots of io. Usually I use gevent and python 2.7. But recently I've been trying to get more into asyncio and here I'm going to document all the things that I felt important to know or that tripped me up.

1. Thoroughly understand yield, and non asyncio coroutines

The first thing you need to do is write some coroutines without asyncio. This means understanding the yield keyword and how it can be used to create generators. Then next the protocol for sending/receiving from generator objects.

Recall generators are a special kind of iterator. When you specify a generator like so, you can use it in a for loop:

def generator()

for i in range(0, 5):

@jpsim
jpsim / JAZMusician.h
Created July 7, 2014 09:25
SourceKit Playground
//
// JAZMusician.h
// JazzyApp
//
#import <Foundation/Foundation.h>
/**
JAZMusician models, you guessed it... Jazz Musicians!
From Ellington to Marsalis, this class has you covered.
@goyalankit
goyalankit / bash_to_zsh_history.rb
Last active October 28, 2023 05:07
Import bash history to zsh history.
#################################################################
# = This script transfers bash history to zsh history
# = Change bash and zsh history files, if you don't use defaults
#
# = Usage: ruby bash_to_zsh_history.rb
#
# = Author: Ankit Goyal
#################################################################
# change if you don't use default values
@ncw
ncw / README.txt
Last active February 20, 2024 19:30 — forked from spikebike/client output
Client side certificates with go
This demonstrates how to make client side certificates with go
First generate the certificates with
./makecert.sh test@test.com
Run the server in one terminal
go run server.go