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#!/bin/bash

# A bash script to update a Cloudflare DNS A record with the external IP of the source machine
# Used to provide DDNS service for my home
# Needs the DNS record pre-creating on Cloudflare

# Proxy - uncomment and provide details if using a proxy
#export https_proxy=http://<proxyuser>:<proxypassword>@<proxyip>:<proxyport>

# Cloudflare zone is the zone which holds the record

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#!/bin/bash
#
# Bash must have been compiled with this ability: --enable-net-redirections
# The device files below do not actually exist.
# Use /dev/udp for UDP sockets

exec 3<>/dev/tcp/host/port

# Write to the socket as with any file descriptor
echo "Write this to the socket" >&3

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How to have specific .gitignore for each git branch

Objective

My objective is to have some production files ignored on specific branches. Git doesn't allow to do it.

Solution

My solution is to make a general .gitignore file and add .gitignore.branch_name files for the branches I want to add specific file exclusion. I'll use post-checkout hook to copy those .gitignore.branch_name in place of .git/info/exclude each time I go to the branch with git checkout branch_name.

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copied from http://www.lorier.net/docs/ssh-ca - all credit there.

## Using a CA with SSH

Using a CA with ssh means you can sign a key for a user, and everywhere that the user trusts the CA you can login, without having to copy your SSH key everywhere again. This allows for things like fast rollover of keys (eg: daily), or trusting the fingerprint of a machine that you're logging into, which can be very useful when you're managing large numbers of machines, or machines that get new host keys (eg by reinstalling) regularly.

You'll probably want at least openssh 5.6, although some of the functionality is available in 5.3.
Creating the CA key

    ssh-keygen -f /etc/ssh/ca

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package main

import (
	"crypto"
	"fmt"
	"os"
	"os/signal"
	"syscall"

	"github.com/ThalesIgnite/crypto11"

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package main

import (
	"crypto"
	"fmt"
	"os"
	"os/signal"
	"syscall"

	"github.com/ThalesIgnite/crypto11"

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package main

/*
#cgo CFLAGS: -I/usr/include/
#cgo LDFLAGS:  -ldinamo  -ltacndlib

#include <dinamo.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>

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#! /usr/bin/python3
from os import popen, remove, getcwd
from selenium import webdriver
from subprocess import call
from sys import exit
from time import sleep
from argparse import ArgumentParser
from threading import Thread
# rootVIII
# sec_browse.py - Auto-configures Firefox network settings