Tomas Basham tomasbasham

SSH agent forwarding and screen

When connecting to a remote server via SSH it is often convenient to use SSH agent forwarding so that you don't need a separate keypair on that server for connecting to further servers.

This is enabled by adding the

ForwardAgent yes

option to any of your Host entries in ~/.ssh/config (or alternatively with the -A option). Don't set this option in a wildcard Host * section since any user on the remote server that can bypass file permissions can now als use keys loaded in your SSH agent. So only use this with hosts you trust.

	#!/usr/bin/env bash

	set -eou pipefail

	if [[ "${TRACE-0}" == "1" ]]; then
	set -o xtrace
	fi

	COMMAND=${0##*/}
	DIRNAME=$(dirname "$0")

	local threads = {}

	function setup(thread)
	table.insert(threads, thread)
	end

	function init(args)
	count_2xx = 0
	count_3xx = 0
	count_400 = 0

	#!/usr/bin/env bash

	set -e

	# Ensure the script is running as root
	if [[ "$(id -u)" != '0' ]]; then
	exec sudo "${BASH_SOURCE[0]:-$0}" "$@"
	fi

	try_install() {

	#!/usr/bin/env bash

	set -e

	# Ensure the script is running as root
	if [[ "$(id -u)" != '0' ]]; then
	exec sudo "$BASH_SOURCE" "$@"
	fi

	# Update the system

	#!/usr/bin/env bash

	set -e

	# Ensure the script is running as root
	if [[ "$(id -u)" != '0' ]]; then
	exec sudo "$BASH_SOURCE" "$@"
	fi

	# Update the system

	/*
	* Add a specific Cloudflare edge cache HTTP header to each HTTP response
	* preventing defined pages from being cached at the edge. This is done
	* selectively since some pages require dynamic content based on external
	* factors such as geographic location of the request. All other static
	* content will continue to be cached (i.e. JavaScript, CSS, images).
	*
	* To control the caching behaviour at the edge add a custom metadata field
	* to the page:
	*

	require 'base64'

	class SpanContext
	def initialize(trace_id: '', span_id: '')
	raise RuntimeError 'trace_id must be 16 bytes' unless trace_id.size == 16
	raise RuntimeError 'span_id must be 8 bytes' unless span_id.size == 8

	@version = [0]
	@trace_id = [0] + trace_id.bytes # field id 0 + trace_id
	@span_id = [1] + span_id.bytes # field id 1 + span_id

	require 'digest'
	require 'net/http'

	password = ARGV[0] \|\| 'Password'
	hashed_password = Digest::SHA1.hexdigest password

	# SHA1 hashes will be 40 characters long
	prefix = hashed_password[0, 5].to_s.upcase # Get the first 5 characters
	suffix = hashed_password[5..-1].to_s.upcase # Get the remaining 35 characters