Ian Smith ianhenrysmith

Configuring the Centurylink-sold Technicolor C2100T DSL modem to use real DNS

Here's how to get real DNS set up on a Technicolor C2100T modem. This works at minimum when you're doing PPPoE (the usual method) on a C2100T modem sold or rented to you by Centurylink.

Motivation

When you look up a nonexistent domain name, proper DNS service tells you it doesn't exist by returning Nonexistent Domain (NXDOMAIN).

In contrast, even on business lines, Centurylink's DNS service will snipe NXDOMAIN. Centurylink's servers (nameservers at 205.171.2.25 & 205.171.3.25 at least) return a Centurylink web server IP addresses when you should be getting NXDOMAIN.

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

	require "faker"
	require "csv"

	def contact_row
	[
	first_name,
	last_name,
	email,
	title,
	birthday

	# bundle exec rake wikiseed:star_wars SUBDOMAIN=jammies COUNT=1

	require 'open-uri'
	require 'nokogiri'

	namespace :wikiseed do
	TYPE_MAPPINGS = {
	wikipedia: {
	category: 'Wikipedia',
	url: 'https://en.wikipedia.org/wiki/Special:Random',

	# Block Facebook IPv4
	127.0.0.1 www.facebook.com
	127.0.0.1 facebook.com
	127.0.0.1 login.facebook.com
	127.0.0.1 www.login.facebook.com
	127.0.0.1 fbcdn.net
	127.0.0.1 www.fbcdn.net
	127.0.0.1 fbcdn.com
	127.0.0.1 www.fbcdn.com
	127.0.0.1 static.ak.fbcdn.net

	module Service
	class IvonaCookie
	require 'digest/md5'
	require 'json'
	require 'faraday'

	EMAIL = '<email>'
	REST_API_PATH = 'api/saas/rest'
	API_KEY = '<api key>' # for ivona

	# form should have class 'autoupdate' and should have data-remote set to true
	$(".autoupdate input").live("paste keyup change blur", () ->
	@$this = @$this \|\| $(this)
	@$form = @$form \|\| @$this.closest("form")

	@val = @$this.val()
	unless @val == @old_val
	@old_val = @val
	queue_save(@$form)
	)

	# from szaby (https://github.com/icebreaker)
	# "Sometimes it's nice and cleaner to just use a block instead of having an explicit if statement
	# when caching an operation that has multiple statements in a member variable."

	# original
	def client
	if @client.blank?
	@client = Client.new
	@client.turn_on_x()
	end

	.dropdown{ class: @options.class }
	%input.dropdown_target{ type: "text", name: @field, id: @field, value:"#{@value}"}
	%span.dropdown-toggle= @value
	%ul.dropdown-menu{ role:"menu"}
	- for opt in @values
	%li.dropdown_item{v: opt}= opt

	html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td
	margin: 0
	padding: 0
	border: 0
	outline: 0
	font-weight: inherit
	font-style: inherit
	font-size: 100%
	font-family: inherit
	vertical-align: baseline