Connecting to remote SSH-server from within company firewalled network

Problem 1: Often company firewalls/web proxies only allow outgoing traffic to HTTP and HTTPS ports, but you also would like to connect to a remote SSH-server. A trick is to start the remote SSH-server at the port which is normally reserved for HTTPS-traffic. Most of the time it is in this way possible to connect …

Raspberry Pi: Your cheap Automatic Identification System (AIS) receiver

In this tutorial you will learn how to teach your Raspberry Pi to become a brave Automatic Identification System (AIS) receiver. What is AIS? The Automatic Identification System (AIS) is an automatic tracking system used on/for ships. It transmits information like identification, position, course and speed. Ingredients Raspberry Pi (2 model B) DVB-T-DAB-FM receiver Client …

Parallel bash scripts – waiting for completion

Assume we would like to execute several independent tasks in parallel and we would like to wait till these tasks are completed. For example we would like to copy a set of files to several (remote) hosts and get a signal when we are ready with this copying task to ALL hosts so we can …

Run ZoneMinder in a CHROOTed environment

In this post you will learn how to run  ZoneMinder at your VU+ Solo2 satellite receiver in a  CHROOTed environment to monitor your Foscam FI9805W webcam. Meanwhile you are simply creating a LAMP (Linux/Apache/MySQL and PHP)-configuration at your VU+ Solo2 and even a building environment. Steps in this tutorial Bootstrap a basic Debian system; Prepare CHROOTed-environment …