Daniel Smith ifnull

Introduction

You have SSH access to a server and need to access a web admin (or any protocol) on a non-public port.

For example, you want to access a Solr admin on port 8983 but the server's firewall only allows port 80 and 22. Rather than opening a port in the server's firewall we can just create a SSH tunnel.

Setup

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

What is This

I wanted to pipe ffmpeg output to VLC on Windows which took a little while to figure out. ffmpeg cannot detect what format to use when piping, so I went through some obvious options but it was unclear what was best. So I wrote an extremely naive benchmarking script that would run a common stream for two minutes and then take the CPU/Memory usage data from tasklist /v before killing the two processes.

System Info

system

Proc: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz  3.39GHz

	# trellis/roles/nginx/templates/facebook-scraper.conf.j2

	satisfy any;
	allow 204.15.20.0/22;
	allow 69.63.176.0/20;
	allow 66.220.144.0/20;
	allow 66.220.144.0/21;
	allow 69.63.184.0/21;
	allow 69.63.176.0/21;
	allow 74.119.76.0/22;

	https://www.facebook.com/sharer.php?u={url}
	https://www.facebook.com/dialog/share?app_id={app_id}&display={page_type}&href={url}&redirect_uri={redirect_url}
	https://reddit.com/submit?url={url}&title={title}
	https://twitter.com/intent/tweet?url={url}&text={title}&via={user_id}&hashtags={hash_tags}
	https://www.linkedin.com/sharing/share-offsite/?url={url}
	https://api.whatsapp.com/send?phone={phone_number}&text={title}%20{url}
	https://www.tumblr.com/widgets/share/tool?canonicalUrl={url}&title={title}&caption={text}&tags={hash_tags}
	http://pinterest.com/pin/create/button/?url={url}
	https://www.blogger.com/blog-this.g?u={url}&n={title}&t={text}
	https://www.evernote.com/clip.action?url={url}&title={title}

	#!/usr/bin/env bash
	#
	# gh-dl-release! It works!
	#
	# This script downloads an asset from latest or specific Github release of a
	# private repo. Feel free to extract more of the variables into command line
	# parameters.
	#
	# PREREQUISITES
	#