Dump1090 is an ADS-B decoder and it is used with the RTL-SDR dongle. Automatic Dependent Surveillance Broadcast or ADS-B is the system that is used by aircrafts to transmit their GPS position. Dump1090 receives this information from the RTL-SDR dongle and prints out the location of the aircraft on google maps.
This guide will cover the installation of dump1090. To work, you neet to have the RTL-SDR dongle and of course an antenna tuned to 1090MHz . Continue reading
If you suddenly loose Internet access, you can play an endless running game. This only works if your computer isn’t connected to the Internet.
Meet T. Rex. He shows up when Chrome can’t connect to the Internet. It looks like this: Continue reading
To be able to add images on devices, you must already have a TFTP-Server and of course the necessary .xml configuration files.
Every cisco telephone set has it’s own demands. The image format must be on .PNG with specific dimensions
| Telephone set | Image dimensions (pixels) | Thumbnail dimensions(pixels) | TFTP Folder |
| 7906/7911 | 95 X 34 | 23 X 8 | /Desktops/95x34x1 |
| 7941/7961/7942/7962 | 320 X 196 | 80 X 49 | /Desktops/320x196x4 |
| 7945/7965/7975 | 320 X 212 | 80 X 53 | /Desktops/320x212x16 |
| 7970/7971 | 320 X 212 | 80 X 53 | /Desktops/320x212x12 |
WARNING : This solution is not the best way to protect your property.
First of all, I am not a programmer so many of you will notice my elementary skills on coding. If you have anny issues or suggestions please contact me at info[at]wizzycom[dot]net
Some information about Ademco Contact ID.
Ademco Contact ID is a protocol that establishes communication between a a security system and a monitoring station . The security system sends a 16-digit code to the monitoring center and the monitoring station converts this to readable information.
Let’s see the sections of this 16-digit code :
1111223444556667
The monitoring station receives the code above ( not a real example, but it is easier to understand the sections ) : Continue reading
I had the task to get a wordpress website working on the internet. The website was only used locally under the domain intranet.local. So the customer wanted to publish it to the internet under the domain example.com but also under the domain intranet.local. Continue reading
There is no golden rule on this. Everyone has it’s own way to do a basic configuration on a cisco router. Here is mine.
Some routers are pre-configured by cisco. The first time that the router powers up, it will ask for a username and password which is always cisco/cisco. This is one-time-password. If you login from console and you don’t change this, then you will be locked out. In case of pre-configured router, I always erase the running configuration by issuing : Continue reading
VDR is an application that allows us to do video streaming using as source a DVB-S or DVB-T adapter. This guide was tested on CentOS 6.4 x64. I used VDR version 1.7.22 and version 0.5.2 of streamdev server plugin. A prerequisite is that the system must have installed a DVB adapter.
Let’s install some groups and packages
yum groupinstall "Additional Development" "Development tools" yum install fontconfig fontconfig-devel freetype freetype-devel gettext gettext-devel libcap libcap-devel libjpeg libjpeg-devel
We must have a frsh installation of CentOS 7 with internet access. We begin by disabling selinux because problems were observed during the installation with selinux enabled.
sed -i 's/\(^SELINUX=\).*/\SELINUX=disabled/' /etc/sysconfig/selinux sed -i 's/\(^SELINUX=\).*/\SELINUX=disabled/' /etc/selinux/config
Mikrotik should have a real internet IP to a certain interface. If it is located behind nat, the modem that provides internet access should be able to forward ipsec-esp packages. If your mikrotik is behind an internet modem that does not forward ipsec-esp, then you should stop here.
Continue reading
The command SCP (Secure copy) allows us to copy – file transfer over SSH, providing the same level of security that SSH provides. Let’s see some examples :
Continue reading