Posts
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Jan 24, 2026
Running low on disk space? It happens to the best of us. Whether it's accumulated cache files, forgotten Docker images, or orphaned Python virtual environments, disk space has a way of disappearing. This quick reference guide covers the most effective commands to reclaim your precious storage.
Overview
This guide covers:
* Checking disk usage and finding space hogs
* Cleaning cache and log files
* Pruning Docker resources
* Removing Python virtual environments
* Package manager cache -
Mar 8, 2025
Welcome to My 15-Day KNX Home Automation Journey with Home Assistant!
Hello, home automation enthusiasts! I'm thrilled to announce that I'm embarking on an exciting 30-day journey to set up a comprehensive KNX-based home automation system using Home Assistant. Over the next month, I'll be diving deep into the world of KNX devices, exploring their capabilities, and integrating them seamlessly into my smart home setup.
Each day, I'll be sharing my experiences, tips, and insights as I configure a -
Feb 14, 2024
Some snippets/notes on how to use freqtrade.
https://www.freqtrade.io/en/latest/
https://github.com/freqtrade/freqtrade
$ sudo apt install -y python3-pip python3-venv python3-pandas python3-pip git
$ git clone https://github.com/freqtrade/freqtrade.git
$ cd freqtrade
$ git checkout stable
$ ./setup.sh -i
ubuntu-pc:~/freqtrade$ ./setup.sh -i
/usr/bin/python3.8
using Python 3.8
-------------------------
Installing mandatory dependencies
-------------------------
Debian/Ubuntu detected. Setup -
Feb 14, 2024
I use Home Assistant for quite some years now, started to run it on a Raspberry Pi, a NUC, later went for Home Assistant Blue, and recently bought a Home Assistant Yellow, specially for the built-in radio's and faster Raspberry CM4 module. https://www.raspberrypi.com/documentation/computers/compute-module.html
I could move over my installation vie the backup-restore method, but I want to document things, clean up unused code, and maybe improve older integrations. (by adding unique id's, Config -
Dec 23, 2023
import http.server
import socketserver
from http import HTTPStatus
class MyServer(http.server.SimpleHTTPRequestHandler):
def do_GET(self):
# toon_smartmeter
if self.path == '/hdrv_zwave?action=getDevices.json':
filename = "getDevices.json"
# toon_climate
elif self.path == '/happ_thermstat?action=getThermostatInfo':
filename = "getThermostatInfo.json"
if self.path:
try:
f = open -
Dec 23, 2023
Was looking for a tool to store my bookmarks and items to read. Did this by sending myself e-mails which was not very clean...
I opted to move to Wallabag, so installed it on a VPS like so.
Install Debian 12, with minimal installation and SSH terminal selected.
Wallabag needs PHP and Nginx
su -
apt install sudo
adduser user sudo
sudo apt update && sudo apt upgrade
sudo apt install git make composer
sudo apt install php-fpm php-mysql php-bcmath php-xml php-zip php-curl php-mbstring php-gd ph -
Nov 11, 2022
I switched from the paid (although cheap) AWS Lightsail to Google Compute Engine for hosting this blog.
NOTE: I bought the support for one month to get support on disabling DNSSEC
I hope to run the Google Cloud VM Instance for free (using the monthly credits)
The difference between this instance and the old one which ran at AWS is also a newer Debian distribution 11, and Ghost 5 instead of Ghost 3.
Compute Engine: Virtual Machines (VMs) | Google CloudCompute Engine delivers configurable virtu -
Nov 11, 2022
Having a KNX IP backbone with IP routers working I wanted to see if I can build some DIY sensors using it, and check if this is a stable solution for non-critical use cases.
After building a module using ESPHome, I thought of converting it using KNX IP (ie. broadcast over WiFi to a broadcast address to report sensor values)
Install Arduino IDE if not done yet.
Go to https://www.arduino.cc/en/software and download version for your OS.
On Linux do not install via sudo apt install Arduino, it's -
Nov 11, 2022
I installed Proxmox on a spare NUC8 to run all kind of things and get Proxmox experience.
Hardware
* Intel NUC with at least 8 GB of memory plus required VM memory size, I use 32 GB.
* Make sure you have enough hard-drive space. I use a 256 GB SSD.
* BIOS boot and hit F2 to enter. Look for boot order and boot devices. Make sure USB boot is priority. Also make sure you enabled virtualization features of the processor.
Prepare Installation Medium
Download latest Proxmox image from this si -
Jun 25, 2021
Finally had some time to move my TTN gateway from V2 to V2 network. Here are the steps and screenshots.
Prerequisites:
- Running v1.08 gateway firmware (beta)
- User account for TTN console (Community Edition)
Visit https://www.thethingsindustries.com/docs/download/ for the options
1. Create a gateway in V3.
a. Visit https://eu1.cloud.thethings.network/console/gateways/add if you live in Europe.
b. Give the gateway a name. (Gateway ID)
c. Choose the frequency plan 'Europe 863-870 -
Feb 23, 2021
A developer preview of the new Android 12 is available, I installed it on my Pixel 3 XL, and it works fine, a lot of good news on social media too.
Nevertheless this can be worse with DP2 or later, so only do this on a spare phone, and if you know what you are doing.
Android 12 Developer Preview | Android DevelopersAndroid DevelopersFirst preview of Android 12Posted by Dave Burke, VP of Engineering Every day, Android apps help billions of people work, play, communicate -
Feb 23, 2021
I decided to switch to only using Home Assistant OS for running servers, I have an Intel NUC (development) and Home Assistant Blue (production), they run Home Assistant and do some file sharing and DSMR smartmeter energy readings.
Also VS Studio, TimeScaleDB (Postgres)
But I also run a personal blog (the one you are looking at now) at home for years on my home Linux server, I could port Ghost over to Home Assistant add-on but I wanted to experiment with AWS cloud as well.. If this can be done c -
Feb 23, 2021
My D.I.Y. i3 board running Ubuntu 18 and Docker with Supervised HA for a long became unsupported, and in unhealthy state according to Hass.io, so I was looking at a Intel NUC to test running Home Assistant OS with add-ons only. And possibly create a add-on or two if needed.
Hardware
Browsing the web at Black Friday I came across this NUC on sale rather cheap.
So I bought the following for around 300 Euro:
- Intel NUC Kit NUC8i3BEK i3-8109U
- SSD 1TB WD Blue M.2
- Lexar 16GB 2666MHz RAM
Mount -
Feb 17, 2021
Had to look up some posts before I got it working, so this is a note to myself.
First you need to allow the KNX Group Addresses you want to trigger on to hit Home Assistants event bus, in this example 0/0/1.
knx:
fire_event: true
fire_event_filter: ["0/0/1"]
Correction: 'fire_event' is deprecated.
This is the correct syntax:
knx:
event_filter: ["0/0/1", "1/0/13"]
After a restart you can check if the GA is visible on the bus when triggered, open HA's developer menu, events, and ty -
Jan 8, 2021
Art. No. 23066REGHE
I bought a few of these modules some time ago, they were used for a short period in holiday homes and replaced by another non KNX solution. Recently I had some time to look at them in detail, configure them with ETS5 and test their functionality.
'Multi' doesn't only tell something about the functionality, the product documentation is 489 pages long and it has more than 100 group objects to assign!
Product info
Possible use cases:
* Switching of electrical loads with f -
Jan 8, 2021
IMPORTANT NOTE: This setup is pure for testing/HSL development/knowledge gathering only, don't use this in production environment or for replacement of the Home Server hardware. I'm not responsable for any possible damages!
For plugin development and to check out version 4.11 I bought a refurbished Fujitsu Futro S720 thin client.
S720 mini-pc
It contains a D3313-B13 GS 1 motherboard with a 2GB memory module and a 2GB mSATA 3SE from innodisk for disk storage, no fan, so as quiet as possible. -
Nov 8, 2020
Install and compile the Gnome Keyring development
$ sudo apt-get install libgnome-keyring-dev
$ sudo make --directory=/usr/share/doc/git/contrib/credential/gnome-keyring
$ git config --global credential.helper /usr/share/doc/git/contrib/credential/gnome-keyring/git-credential-gnome-keyring -
Nov 8, 2020
Like I wrote here I wanted to see if I could connect my Shed with KNX via power-line since I have no means of getting the KNX data bus there, and KNX RF doesn't support extending a line over KNX RF. (Yet, I don't know what ETS6 brings)
I could have done all with KNX-RF(+) devices, but there are no KNX RF weather stations.
So I started to created a test installation, also for enhancing my practical KNX knowledge about bus types.
I knew I needed to replace my IP gateway with two IP routers, so -
Nov 4, 2020
Forums
Belgian KNX Forum
German KNX Forum
Dutch Tweakers KNX Topics
Personal KNX Blogs
Smartest Home (German)
Zilverlindeblog (Dutch)
Official Sites
KNX Website
MyKNX Website
Commercial Sites
KNXtoday Website
Manufacturer Support Sites
ABB
SIEMENS
GIRA
Weinzierl
MDT
Domoticom
Theben
Arcus-eds
-
Oct 27, 2020
I bought a second hand IP router to replace my IP interface, I'm trying to setup a IP backbone so I can extend my KNX network to the Shed via power-line modules. A second IP router is underway shortly.
The one I have now is an Index 04 version, "2167 00 I04" I originally wanted a I14 so I could experiment with Secure KNX, but I don't need it since the power-line modules encrypt the data as well. And new devices are almost double the price.
The one I received contained firmware version 2.0.134, -
Oct 22, 2020
I have some sections in my house where it's impossible to get the green lifeline aka the KNX Cable to reach.
So I started to investigate the possibility of using KNX RF for those locations. Since it's rather new (in KNX terms) there are already several types of KNX RF, I needed to find out what works together and note it down.
Standards KNX RF, KNX RF Ready, KNX Multi, KNX RF+, mostly backwards compatible.
KNX RF
For retro-fit/residential, works standalone or with other media, repeater func -
Oct 20, 2020
Steps to get it going:
* Install Arduino IDE
* Install SparkFun AVR drivers
* Install The Things Network and SoftPWM libraries
* Define device on TTN Console
* Get Id's
Some handy links:
* Github repository with all kinds of information.
* The schematic of the thingy.
* TheThingsNetwork user forum.
* Help to build the community.
On board you will find:
* U5: Microchip RN2483 Low-Power Long Range LoRa™ Technology Transceiver Module.
* U1: ATmega32u4 8-bit Microcontroller with 32 -
Oct 18, 2020
Some commands to investigate and cleanup my Home Assistant database.
I'm using MariaDB in docker, open a docker cli on homeassistant docker image (using Portainer for example)
bash-5.0# mysql homeassistant
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 38
Server version: 10.4.13-MariaDB MariaDB Server
Copyright (c) 2000, -
Sep 26, 2020
Setup image and install tools for building your a KNX IP interface for ETS5 and 1-wire support.
Install Debian 10
Download and flash below image to a 2GB micro-SD card.
https://rcn-ee.net/rootfs/2020-04-09/flasher/bone-eMMC-flasher-debian-10.3-console-armhf-2020-04-09-2gb.img.xz
Now that you have the latest image of Angstrom loaded onto your micro-SD card slot, you'll need to flash it onto the on-board flash memory of the BeagleBone Black.
To start, make sure the BeagleBone Black is po -
Sep 22, 2020
I needed binary inputs which could handle 230 Volt and simply have the option to send On, Off or Toggle to a Group Address using standard light switches with rocker- and push switches. (for a good user experience)
I came across a batch of old SIEMENS N260 4-fold binary inputs, for 10 Euro each, so I bought them,
Just before placing the order I noticed that they have no KNX connector but use a data-rail connection, upon request I got a free piece of data-rail (5WG1190-8AB03) with it.
Problem -
Sep 22, 2020
A month ago I came across an online E-learning Basic Course KNX from GlobalVizion, which was discounted because of the COVID pandemic. I bought it and finished it a few weeks later, it's a theoretical part and a practical part.
The course concludes with a theoretical test. After passing the test (with at least a mark of 7), you will automatically receive a one-time certificate of participation. You can obtain the KNX certificate and be enrolled as a partner in the KNX Association KNX, after tak -
Sep 22, 2020
I use a ABB EnOcean EG/A32.2.1 EnOcean to KNX Gateway, a wonderful device, but I ran into an issue where a Eltako FTKE door window sensor (F6-10-00) reported 0 - Close; 1 - Open
And an STM 250 window sensor (D5-00-01) reports 1 = Closed; 0 - Open.
So Home Assistant sees Window Open when magnet contact closed and visa versa.
Not wanting to fiddle with Home Assistant code this time, but it turns out that after pairing the EnOcean contact you get two status_contacts, one enabled and one disabled -
Sep 22, 2020
I had an issue where i have an All On/Off Central group address in KNX but I didn't want to be able to do a Switch On All for a switch from Home Assistant.
I came up with a template switch like this:
knx:
switch:
- name: 'Alles Uit/Aan'
address: '0/0/1'
switch:
- platform: template
switches:
alles_uit:
friendly_name: "Alles Uit"
value_template: "{{ is_state('switch.alles_uit_aan', 'off') }}"
turn_on:
service: switch.turn_off
d -
Sep 11, 2020
I couldn't wait any longer for the bare-bone AMD's to become available again in the Netherlands and wanted a modern, small laptop with more then the standard FHD resolution, 16GB Memory and 512GB SSD and AMD Ryzen below the €1000 range.
Specs:
14" Format
Ryzen 5 4600H
16GB memory
512GB Western Digital PC SN730 NVMe™ SSD
2K Display 3:2 (2160x1440 resolution)
Touchscreen
NFC
Fingerprint reader
65W USB-C
307.5 mm x 223.8 mm x 15.9 mm
1.49 kg
Came with Chinese Windows 10 Home, but I -
May 14, 2020
Login to Toon:
$ ssh -c aes128-cbc -oKexAlgorithms=+diffie-hellman-group1-sha1 root@192.168.x.y
Download script to your Toon:
$curl -Nks https://raw.githubusercontent.com/ToonSoftwareCollective/update-rooted/master/update-rooted.sh -o /root/update-rooted.sh
Then run the script with:
$sh /root/update-rooted.sh
Resources:
ToonSoftwareCollective/update-rootedUpgrade a rooted toon using original sources. Contribute to ToonSoftwareCollective/update-rooted development by creating an account on -
Mar 20, 2020
Some steps too take a closer look to AVM's firmware
$ mkdir ~/Firmware; cd ~/Firmware
$ wget https://download.avm.de/fritzbox/fritzbox-7590/other/fritz.os/FRITZ.Box_7590-07.13.image
$ sudo apt install binwalk
$ ls
FRITZ.Box_7590-07.13.image
$ binwalk --signature --term FRITZ.Box_7590-07.13.image
DECIMAL HEXADECIMAL DESCRIPTION
--------------------------------------------------------------------------------
0 0x0 POSIX tar archive (GNU)
$ tar xvf FRITZ.Box -
Mar 19, 2020
Ubuntu:
$ sudo apt-get install libpam-google-authenticator
Debian:
$ sudo apt-get install libqrencode3
$ wget http://ftp.us.debian.org/debian/pool/main/g/google-authenticator/libpam-google-authenticator_20191231-1_amd64.deb
$ sudo dpkg -i libpam-google-authenticator_20191231-1_amd64.deb
Configure:
$ google-authenticator
$ sudo vi /etc/pam.d/sshd
Add to the bottom:
auth required pam_google_authenticator.so
$ sudo vi /etc/ssh/sshd_config
Set ChallengeResponseAuthentication yes
$ sudo /etc/ -
Mar 19, 2020
About SPF, DMARC and DNSSEC
DMARC:
Create a 14 Day trial account at https://dmarcian.
Setup and get unique email addresses, create a DMARC TXT record:
_dmarc.cyberjunky.nl
v=DMARC1; p=reject; rua=mailto:ci2xsqr1@ag.dmarcian.com; ruf=mailto:ci2xsqr1@fr.dmarcian.com;
https://dmarcian.com/dmarc-inspector/?domain=cyberjunky.nl
SPF:
To check send an email from the domain you want to test to check-auth@verifier.port25.com
Create a SPF TXT record (hosted by Google's gmail):
v=spf1 include:_spf -
Mar 19, 2020
R Studio Data Recovery doesn't start with:
/usr/local/R-Studio/bin/R-Studio: error while loading shared libraries: librs_linux_r.so: cannot open shared object file: No such file or directory
$ sudo vi /etc/ld.so.conf.d/rstudio.conf
/usr/local/R-Studio/lib
Change words in multiple docs:
$ grep -rl 'Tcphost' ./ | sudo xargs sed -i 's/Tcphost/TCP Host/g'
$ grep -rl 'Tcpport' ./ | sudo xargs sed -i 's/Tcpport/TCP Port/g'
Mount a VDI disk image:
$ sudo modprobe nbd max_part=16
$ sudo qemu-nbd -c -
Mar 19, 2020
I had this Geiger counter DIY Kit for Arduino laying around for a long time and decided to connect it to my Home Assistant installation using ESPHome.
I'm using a Wemos D1 mini, even though the counter works at 5V and the IO pins accept a max. voltage of 3.2V it works and hasn't damage the input. (disclaimer)
Connect the pins as follows:
Wemos D1
Geigercounter
GND
GND
5V
5V
D2 (GPIO4)
INT
esphome:
name:
platform: ESP8266
board: esp01_1m
wifi:
ssid: "-
Mar 19, 2020
With a lot of effort (back then when not much was known) I flashed my LG Chromebase (22CV241) to use Coreboot and installed Ubuntu 14.04 LTS on it.
For a while I wanted to reinstalled ChromeOS since I used it for email and viewing YouTube/Twitch only. But since I didn't saved the original BIOS file I couldn't.
Until I came across mrchromebox's script which appeared to download the BIOS from the web, and low and behold it worked.
These are the steps.
Since I already ran Ubuntu on it, I could -
Mar 19, 2020
In this post I describe the steps needed to prepare a LSC Smart Connect power plug -sold by Action- for use with Home Assistant/ESPHome. I simply gathered instructions I found on the web.
You need to be able to solder thin copper wires on the Smart Plug's circuit board. All steps are at your own risk!
1. Open the plug by undoing the two small screws at the bottom. There are two internal plastic clips on the opposite side. You now see the small ESP board standing upright, this is the TYWE3L mo -
Mar 18, 2020
Shotwell cannot cope with auto-mounted shares made by files/nautilus on Ubuntu.
You get "hardware errors" while importing (in place) You can circumvent this by mounting the share using CLI tools, like described here: https://cyberjunky.nl/mount-sambas-share-on-ubuntu/ -
Mar 18, 2020
$ sudo apt install cifs-utils
$ sudo mkdir /mnt/
$ sudo mount -t cifs -o user= /// /mnt/
-
Sep 27, 2019
Install Alpine Linux inside Virtual Box using this image, assign to DVD device, set network adapter to bridged, boot it, and login with root
Then start the setup script
# setup-alpine
Walk through script:
Keyboard layout: us
Keyboard variants: us
Networking eth0, bridge, dhcp
Root password
Timezone: Europe/Amsterdam
HTTP/FTP, proxy none [enter]
NTP client: chrony [enter]
Mirror: f (fastest)
SSH server: openssh [enter]
Disk(s): sda, how: sys, continue: y
Shutdown live cd using poweroff comma -
Sep 27, 2019
Excerpt of latest Toon update.
# cd /root
Get correct resource files:
# wget http://qutility.nl/resourcefiles/resources-qb2-5.9.6.zip
--2019-08-15 15:34:37-- http://qutility.nl/resourcefiles/resources-qb2-5.9.6.zip
Resolving qutility.nl... 54.38.183.159
Connecting to qutility.nl|54.38.183.159|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2796681 (2.7M) [application/zip]
Saving to: `resources-qb2-5.9.6.zip'
100%[====================================================== -
Apr 6, 2019
I never heard of ZeroTier One until Frenck created a Hass.io Add-on for it.
To start using it, first create a free ZeroTier One account and create a network to get the network-id needed for the add-on settings, then install the add-on, fill in the network-id and start it. Check log for succesful startup.
It should show up as connected device in the network settings. Authorise the connected device, and install the ZeroTier One client on the computer from which you want to connect to the home ne -
Apr 2, 2019
My notes so I don't need to find them every time my TOON gets an update
# cd /root
# wget http://qutility.nl/resourcefiles/resources-qb2-5.2.11.zip
# unzip resources-qb2-5.2.11.zip
Archive: resources-qb2-5.2.11.zip
inflating: resources-static-base.rcc
inflating: resources-static-ebl.rcc
# find . -name *.rcc
./qmf/qml/resources-static-ebl.rcc
./qmf/qml/resources.rcc
./qmf/qml/drawables-base.rcc
./qmf/qml/drawables-ebl.rcc
./qmf/qml/resources-static-base.rcc
./qmf/qml/drawables.rcc
# cp /r -
Apr 1, 2019
Installation commands and log for building your own image with KNX and 1-wire support.
Install and configure the 1-wire daemon
# Download base image:
https://rcn-ee.net/rootfs/2018-09-11/flasher/BBB-eMMC-flasher-debian-9.5-console-armhf-2018-09-11-2gb.img.xz
# Write to 2GB micro sd card
https://learn.adafruit.com/beaglebone-black-installing-operating-systems/flashing-the-beaglebone-black
# Look for bbgw's IP address in DHCP and login using SSH
ssh 192.168.178.122
User: debian
Password: t -
Mar 27, 2019
I had my network IP address range renamed because of an ISP change, and forgot to change the static IP's of my ESPHome nodes before the switch.
These are the steps to re-program them using the same server.
First change the static IP address settings in the node's config, and add another field with the old IP address called 'use_address'
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
use_address: 192.168.178.112
manual_ip:
static_ip: 192.168.2.112
gateway: 192.1 -
Mar 27, 2019
/certificate add name=SSL common-name=SSL key-size=2048
/certificate create-certificate-request template=SSL key-passphrase=mypassword123
Copy these files (via files download) from your MikroTik to a Linux system:
certificate-request.pem
certificate-request_key.pem
On the Linux server navigate to the folder where the files are located via terminal
openssl rsa -in certificate-request_key.pem -text > certificate-request2.pem
openssl x509 -req -days 9999 -in certificate-request.pem -signkey cer -
Jan 22, 2019
I wanted to see what DSMR reader can tell from my power and gas usage over time, and also to get an insight in the costs. This until I have build a dashboard with the same functionality with Grafana.
But I have no P1 reader other than TOON's meteradapter which data I already read via http for Home Assistant and PVOutput. I could Home Assistant push data to DSMR, but instead to safe time I created a small Python script which I call every 10 seconds.
Install dsmr-docker via docker-compose.yml by -
Jan 21, 2019
Found an interesting custom component sensor called docker_monitor.py here.
But since I use Hass.io it couldn't open docker's UNIX socket, this post describes how to enable and use the TCP based API instead.
Copy docker_monitor.py to your custom_components/sensor directory, create a sensor in your home assistant config like so, and define the containers you want to monitor.
- platform: docker_monitor
host: tcp://192.168.179.10:2375
containers:
- homeassistant
- hassio_sup -
Jan 10, 2019
ESPhomeyaml was already a great add-on for Home Assistant, you could program, compile and flash an ESP node just from your browser. And if you wanted to update it, you just compiled it again and used OTA flashing, auto-reboot node and up again.
It uses MQTT to communicate with Home Assistant. Point was I only ran MQTT broker for that purpose, all other devices were connected via another binding. So it was nice to see that ESPhomeyaml version 1.10.0 (now called ESPHome btw) now has it's own nati -
Jan 6, 2019
For a long time I wanted to disconnect my Omnik Inverter from my WiFi network and stop uploading it's data to the Omnik portal https://www.omnikportal.com/
The Omnik inverter also couldn't connect to the Meraki AP I have, it showed an empty SSID for the MAC addresses, (it probably didn't understand the multiple SSID broadcast-ed from one AP) so I had to enable a separate Wifi network via my FRITZ!Box just to get it connected. And I also queried the Omnik for it's data using Omnik-Stats-Logger ( -
Jan 6, 2019
You can find my custom components here:
https://github.com/cyberjunky/home-assistant-custom-components
-
Jan 6, 2019
Some notes regarding exposing a PCI card inside a Virtualbox VM
Determine PCI ID on host:
vbox@vbox:~$ lspci|grep Ethernet
01:00.0 Ethernet controller: Intel Corporation 82574L Gigabit Network Connection
02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
Determine name VM:
vbox@vbox:~$ VBoxManage list runningvms
"node-server" {881f529e-5876-4f95-8784-ec7d8d8c8bf4}
Inside VM, take note of used ID's:
user@node-s -
Jan 6, 2019
I run several machines on top of Virtual Box on Debian (headless).
Here some notes I made...
Install latest version from virtualbox site
The one in Ubuntu's repo is old
$ sudo vi /etc/apt/sources.list
add this line:
deb http://download.virtualbox.org/virtualbox/debian trusty contrib
$ wget -q http://download.virtualbox.org/virtualbox/debian/oracle\_vbox.asc -O- | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install virtualbox-4.3
Updates
Bef
-
Jan 6, 2019
My Ubuntu installation refuses to mount a particular webdave share.
Using a share and GUI browser is for Windows users anyway.
So I used cadaver instead!
$ sudo apt-get cadaver
Connect to your webdav share
$ cadaver http://webdav.server.com
Enter your credentials.
Now you can use the following commands to interact with WebDav and your
local machine:
ls – Show a list of files available in the current directory.
cd – Go to the specified directory.
get – Download the spe
-
Jan 6, 2019
Was looking for a tool to backup some movies from YouTube to local
disk.
Found Minitube, it appears to be an excellent player too.
$ sudo apt-get install minitube
Just install and start it, search for a keyword and it plays!
Click on the down arrow to save the selected movie.
-
Jan 6, 2019
Some links how to make your cheap reflow oven better, my todo list…
Flash better firmware
https://github.com/UnifiedEngineering/T-962-improvements/wiki
Add DS18B20
http://hackaday.com/2014/11/27/Improving-the-t-962-reflow-oven/
https://github.com/UnifiedEngineering/T-962-improvements/wiki
Replace tape to prevent smell:
http://www.instructables.com/id/T962A-SMD-Reflow-Oven-FixHack/?ALLSTEPS
PWM Mod:
Not recommended for smaller T962!
https://github.com/UnifiedEngineering/ -
Jan 6, 2019
http://resources.infosecinstitute.com/skypefreak-cross-platform-skype-forensic-tool/
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Jan 6, 2019
http://store.raspberrypi.com/projects/rpi-monitor
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Jan 6, 2019
Today I had to fix two issues with my computer not booting through grub
bootloader.
One of the reasons was a failed installation of Ubuntu due to using an
USB stick with a corrupt image on it.
A little Google query found a page with info about boot-repair,
describing a great tool to fix grub boot problems.
I used the 2nd option, simply boot into a live Ubuntu installation and
run these two commands.
Then follow the steps given.
https://help.ubuntu.com/community/Boot-Repair
$ su
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Jan 6, 2019
Steps on how to remove Razberry bloated/unneeded files:
Cloud connect stuff:
# /etc/init.d/zbw_connect stop
# rm -rf /etc/zbw
# rm -rf /var/webif
Mongoose:
# /etc/init.d/mongoose stop
# rm /etc/init.d/mongoose
# rm -rf /etc/mongoose
# rm /usr/sbin/mongoose
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Jan 6, 2019
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Jan 6, 2019
We need to create a wrapper script and associate the file type with it.
$ sudo vi /usr/bin/open-url.sh
#!/bin/sh
# opens Windows .URL files in your default browser
# requires: xdg-open sed grep xargs
sed 's/^BASEURL=/URL=/' "$1" | grep -m 1 '^URL=' | sed 's/^URL=//' | sed 's/\r//' | xargs xdg-open
$ sudo chmod +x /usr/bin/open-url.sh
Now we can associate .URL files with the script. This might be the hard
part.
$ cp /usr/share/applications/chromium-browser.desktop ~/.local/share/appli
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Jan 6, 2019
I'm the proud owner of a dead OCZ Vertex 2 SSD.
It was working for more than 1,5 years in a Ubuntu server without any
problem.
An after a reboot/power cycle last week it died.
The green LED goes on and stays on, no red LED blinking once, like an
other working Vertex drive does.
When trying to boot from it the BIOS tries to detect it for a more than
a minute.
And fails with the message:
Auto-Detecting AHCI Port 1..
...
Auto-Detecting AHCI Port 4..
dmesg in Ubuntu is tel
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Jan 6, 2019
Found my dead OCZ SSD drive again and connected it to the serial port of
my Ubuntu desktop.
This is what I get upon startup when i connect to it at 115200 Baud
CLI> PINRST
*** ROM 106 Mar 12 2009 20:29:35 ***
FW_SRC 0 SHA PASS!
*** EEPROM 207 Jan 3 2011 18:36:43 BuildServer:FW_Common_Critical_Fixes:P1_EEPROM_2_0_7_drop-290232 ***
Hynix Timing EPch
*** Patch 1.4.1 Apr 8 2011 00:55:09 BuildServer:P1_3_6_1_MP4_Patch1_20110408:P1_3_6_1_MP4_Patch1_20110408-305073 ***
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Jan 6, 2019
http://hackaday.com/2014/03/23/monitoring-your-gas-consumption-with-a-jeenode-and-a-nrf24l01/
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Jan 6, 2019
On current server:
# service apache2 stop
# cd /opt/redmine/files
# scp -r * root@:/opt/redmine/files
Make MySQL backup
# mysqldump -u root -p redmine >/root/dump.sql
# scp /root/dump.sql root@1:/root
On new server:
# cd /opt/redmine/files
# chown -R www-data:www-data *
Delete test database (is needed) and reload new database
# mysqladmin -u root -p drop redmine
# mysqladmin -u root -p create redmine
# mysql -u root -p redmine
Reload/m
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Jan 6, 2019
Ok, sometimes you can't go around a Microsoft product because a crappy
site is written in Silverlight and you can't go without it.
These steps install a modified version of Wine and configure it so that
the site which I needed.
Software called Magister used on a School website to monitor childrens
progress worked oke for me on Ubuntu 14.04
$ sudo apt-get install python-software-properties
$ sudo add-apt-repository ppa:pipelight/stable
$ sudo apt-get update
$ sudo apt-get install p
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Jan 6, 2019
In my quest to find a modern Linux distribution which could run both
Gambas2 and Gambas3 I stumbled upon ARCH Linux.
It's not a distribution for the Linux novice, but once you succeed in
installing it it gives you a very fast and minimal installation!
After a while I decided to go back to Ubuntu 12.04 LTS and only use
Gambas3 on it.
But I made a tutorial, and this is a nice place to archive it.
You can find it here. Installing ARCHLinux
Make sure you write the ISO to USB stick with a
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Jan 6, 2019
Chromium on Ubuntu 14.04 doesn't use Netscape plugin API anymore, it
simply not there.
The Chrome browser has support for Flash, so the following steps
download Chrome, extract it's Flashplayer and install it for Chromium.
You need to reboot your computer after installing to activate it, or
kill all running chromium-browser processes.
We need to install the Pepper Flash player installer.
$ sudo apt-get install pepperflashplugin-nonfree
$ sudo update-pepperflashplugin-nonfree --ins
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Jan 6, 2019
Make sure you have latest SDK platform tools installed and have
downloaded and unpack correct image fot your tablet.
These proceed with these steps:
ron@ron-ubuntu:~/Android/Sdk/platform-tools$ ./fastboot devices
08554881 fastboot
ron@ron-ubuntu:~/Android/Sdk/platform-tools$ ./fastboot erase boot
erasing 'boot'...
OKAY [ 0.034s]
finished. total time: 0.034s
ron@ron-ubuntu:~/Android/Sdk/platform-tools$ ./fastboot erase cache
******** Did you mean to fastb
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Jan 6, 2019
$ sudo apt-get install flac lame
$ for f in *.flac; do flac -cd "$f" | lame -b 320 - "${f%.*}".mp3; done
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Jan 6, 2019
If you use TODO: in a comment, it will be listed in the IDE as a task,
very handy!
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Jan 6, 2019
In Ubuntu 14.04 LTS SSD Trim is enabled by default.
That's nice and all, so I thought, nothing to do here but I found out
it doesn't work when you use LUKS crypt partitions, it's a bug.
Here the steps to fix it, please make backups of important files before
doing this!!
Note it only runs on Intel and Samsung SSD drives, see bottom of page
why.
First check if you have the same problems as me:
$ sudo fstrim /
fstrim: /: FITRIM ioctl failed: Inappropriate ioctl for device
Check what d
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Jan 6, 2019
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Jan 6, 2019
Link: http://embeddedideation.com/2014/03/dissecting-the-airport-express/
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Jan 6, 2019
My Cubieboard2 server is running fine for Months now!
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Jan 6, 2019
Startup MySQL tool
# mysql -u root -p redmine
Maybe first use below queries with SELECT to see what matches there are,
before running with DELETE.
These will show records with state register from 7 days or older.
DELETE FROM tokens WHERE action='register' and created_on < now() - INTERVAL 7 DAY;
DELETE FROM users WHERE status=2 and created_on < now() - INTERVAL 7 DAY;
DELETE FROM tokens WHERE action='register';
DELETE FROM users WHERE status=2;
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Jan 6, 2019
Install xgamma-gui:
$ git clone https://github.com/dfc643/xgamma-gui.git
$ cd xgamma-gui
Add to Makefile:
CONFIG += qt
QT += gui
$ qmake && make && make install
$ ./XgammaGui
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Jan 6, 2019
Link: http://www.open-electronics.org/arduino-yun-the-best-hacks-you-will-ever-see/
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Jan 4, 2019
I noticed that some of my Google Chromecasts were on an older firmware version.
You can force a reboot and update with this command: (insert own IP address)
$ curl -X POST -H "Content-Type: application/json" -d '{"params": "ota foreground"}' http://:8008/setup/reboot -v
Note: Unnecessary use of -X or --request, POST is already inferred.
* Trying ...
* TCP_NODELAY set
* Connected to (192.168.178.113) port 8008 (#0)
> POST /setup/reboot HTTP/1.1
> Host: :80