Thomas Kerpe toke

Reverse proxy over 3G modem (draft)

We will explain how to configure a cubieboard running debian as a reverese proxy. The modules that will be used are wvdial and autossh

Credits goes to:

1. http://blog.rootshell.be/2015/02/19/my-little-pwnie-box/
2. https://wiki.archlinux.org/index.php/3G_and_GPRS_modems_with_pppd

CVS2GIT

export REPOPATH="abc/production_ng"
export REPONAME="cvsmigration"
mkdir cvs-migration
cd cvs-migration
mkdir cvs2svn-tmp

cvs2git \

Short Git-REV:

REV=$(git rev-parse HEAD)
echo ${REV::7}

or the correct way ;-) :

Analyzing the Mebus Wireless Sensor

I have a Mebus Weather station from a discounter in my kitchen and an wireless sensor outside the kitchen window. It operates at 433.92MHz and it's blips and bits are not yet analyzed (at least by me). So lets try to read it.

I will use my crappy rtl2832 DVB Dongle (Rafael Micro R820T) for that. I'd buyed it some time ago for 1€. I'ts a little bit whiny about everything. Touch it – määää. Use it without an Powered HUB wäääää. But even that crappy thing is useful ;-)

I have some clue what to expect, so I don't start at zero. I assume the data is modulated as OOK. (On Off Keying) and I have an progam rtl_443 which can help me decode it.

K.R.A.U.S. in pure C

Abstract

This is a C fork of the famous K.R.A.U.S. (floor of the day) application by @jautz written in perl. The acronym K.R.A.U.S. stands for the German phrase "Kaffee-Runde auf unterschiedlichen Stockwerken". It's origin lies far in the beginning of civilisation and was once called Tempus clausum.

Since being independent of a single implementation is cruical for live threatening services this fork has been established.

	#!/bin/bash

	#####################################################################################
	# mqtt2sense - Publish mqtt-topics to opensensemap.org or compatible server
	# Toke 2015
	# Public Domain - no rights reserved
	#####################################################################################

	CURL="/usr/bin/curl"
	MOSQUITTO="/usr/bin/mosquitto_sub"

	## JTAGICE MK II
	jtag2isp.name=JTAGICE MkII ISP
	jtag2isp.communication=usb
	jtag2isp.protocol=jtag2isp
	jtag2isp.program.tool=avrdude
	jtag2isp.program.protocol=stk500v2
	jtag2isp.speed=115200
	jtag2isp.program.extra_params=-Pusb

	Server {
	…

	location / {
	auth_basic "closed site";
	auth_basic_user_file conf/htpasswd;
	}

	location /b {
	allow 192.168.1.1/24;

	do $$
	DECLARE
	ADV_LOCK BOOLEAN DEFAULT FALSE;
	LOCK_ID INTEGER DEFAULT 50;
	BEGIN
	-- EARLY LOCK
	-- LOCK_ID := 'tablename'::regclass::integer;
	SELECT pg_try_advisory_lock(LOCK_ID) into ADV_LOCK;
	RAISE NOTICE 'LOCK_ID: %', LOCK_ID;
	IF ADV_LOCK THEN

	Tracing route to toke.de [2a01:4f8:100:14a5::3]
	over a maximum of 30 hops:

	1 1 ms <1 ms <1 ms 2002:5b59:128c:fc:xxxx:xxxx:xxxx:xxxx
	2 1 ms <1 ms <1 ms 2002:5b59:128c:0:xxxx:xxxx:xxxx:xxxx
	3 * * * Request timed out.
	4 58 ms * 67 ms gi8-47.se.sto.dch.dr1.port80.se [2001:16d8:1:6240::1]
	5 45 ms 51 ms 43 ms ae1-u1301.se.sto.dch.cr1.port80.se [2001:16d8:1:1354::95]
	6 * 56 ms 53 ms Tengi4-2.se.mlm.wtc.cr0.port80.se [2001:16d8:1:1371::1]
	7 64 ms 47 ms * decix-gw.hetzner.de [2001:7f8::616c:0:1]