mschmitt

#!/usr/bin/env ansible-playbook
---
- hosts: localhost
  gather_facts: true
  connection: local
  tasks:
    - name: Do some things
      block:
        - name: A few non-invasive apt actions
          apt:

mschmitt

/*

  A trivial Arduino sketch to mimic iRobot Virtual Wall for Roomba
  ----------------------------------------------------------------

  Based on information found at:
  http://sites.google.com/site/irobotcreate2/createanirbeacon
  
  Uses "A Multi-Protocol Infrared Remote Library for the Arduino":
  http://www.arcfn.com/2009/08/multi-protocol-infrared-remote-library.html

mschmitt

#!/usr/bin/env python3

import sys,re

date=re.compile(r" (\S|\D){3} ( \d|\d\d) (\d\d:\d\d| \d{4}) ")

for l in sys.stdin:
    l = date.sub(' xxxxxxxxxxxx ', l.rstrip())
    print(l)

mschmitt

// ==UserScript==
// @name         Reload at Wallclock
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Reload at Wallclock
// @author       You
// @match        https://mschmitt.github.io/timestamp-tester/
// @match        https://tickets.events.ccc.de/*
// @grant        none
// ==/UserScript==

mschmitt

"Mobilnummern zwecks Pseudonymisierung hashen"

Gültige Mobil-Prefixe besorgen:

lynx --dump https://www.bundesnetzagentur.de/DE/Sachgebiete/Telekommunikation/Unternehmen_Institutionen/Nummerierung/Rufnummern/MobileDienste/zugeteilte%20RNB/MobileDiensteBelegteRNB_Basepage.html | sed -n 's/(0)/+49/p' | sed 's/-//' | awk '{print $1}' | grep ^+49 > numbers.prefixes.txt

Beispieltelefonnummern generieren mit 7 Stellen nach der Vorwahl:

for i in $(shuf numbers.prefixes.txt); do printf "%s%.7i\n" "${i}" "${RANDOM}"; done > numbers.randomnumbers.txt

mschmitt

/*
  Casually working on a shelly script to automatically restart
  an unstable connection based on something.

  In this case, floating average of ping measurements from an URL.
  
  Very early prototype.
*/

const act_if_over_ms = 4.0;

mschmitt

# /etc/telegraf/telegraf.d/prometheus-exporter.conf

# Subscribe to relevant MQTT topics from ioBroker
[[inputs.mqtt_consumer]]
servers = ["tcp://[::1]:1881"]
username = "***"
password = "***"
topics = [
  "0_userdata/0/sensor/einpersonensauna/+",
  "0_userdata/0/stromzaehler/+/+",

mschmitt

Auf Basis der MAC-Adresse der Fritze, über die das Paket reinkam, ein Connection Mark an die Verbindung schreiben:

iptables -t mangle -A INPUT -i eth0 -m mac --mac-source a7:bc:5d:23:53:a3 -j CONNMARK --set-xmark 0x1/0xffffffff
iptables -t mangle -A INPUT -i eth0 -m mac --mac-source e3:c0:f9:f1:8d:76 -j CONNMARK --set-xmark 0x2/0xffffffff

Das Connection Mark in ein Routing Mark umschreiben:

mschmitt

#!/usr/bin/env bash

rm -f cookie.txt
rm -f trace_curl.* trace_krb5.*

# source url sets the $URL1 environment. Confidentiality something something.
source url

# Test case 1: No authentication, no cookies, allow redirect.
# Expected behaviour: Application server at $URL1 redirects to oidc server, oidc server returns error/login page.

mschmitt

#!/usr/bin/perl -w
use strict;
use diagnostics;

# https://gist.github.com/794727
# Dictionary-based password generator in Perl

usage() if ($ARGV[0] and ($ARGV[0] eq '-?'));

my $wordlist = '/usr/share/dict/words';