Some VPN providers leak your IPv6 IP address

Some VPN providers leak your IPv6 IP address

| | IT Security, networking
Just a short note. Today a friend called me if I could help him to get TV streaming from TV stations in the US running. When I looked at it, he even selected a VPN provider which offers servers in the US to circumvent the Geo restrictions, but still it ... Read More
How to configure a Mikrotik router as DHCP-PD Client (Prefix delegation)

How to configure a Mikrotik router as DHCP-PD Client (Prefix delegation)

Over time more and more IPS provide IPv6 addresses to the router (and the clients behind it) via DHCP-PD. To be more verbose, that’s DHCPv6 with Prefix delegation delegation. This allows the ISP to provide you with more than one subnet, which allows you to use multiple networks without NAT ... Read More
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Tips / Solutions for settings up OpenVPN on Debian 9 within Proxmox / LCX containers

| | General
When I tried to migrate my OpenVPN setup to a container on my new Proxmox server I run into multiple problems, where searching through the Internet provided solutions that did not work or were out of date. So I thought I put everything one needs to setup OpenVPN on Debian ... Read More
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Howto setup a Debian 9 with Proxmox and containers using as few IPv4 and IPv6 addresses as possible

| | HowTo, Linux
My current Linux Root-Server needs to be replaced with a newer Linux version and should also be much cheaper then the current one. So at first I did look what I don’t like about the current one: It is expensive with about 70 Euros / months. Following is responsible for ... Read More
A security minded guy forced to buy a Wifi enabled cleaning robot

A security minded guy forced to buy a Wifi enabled cleaning robot

| | IT Security
First I want to tell you all that I wanted a vacuum cleaning robot without Internet connection, but I couldn’t find one which fulfilled the requirements. At first I thought the DEEBOT M81 from ECOVACS would be such a device (vacuum and mop combo and possible to carry between rooms ... Read More
WannaCry happened and nobody called me during my vacation – I tell you why

WannaCry happened and nobody called me during my vacation – I tell you why

| | HowTo, IT Security
I was since last Wednesday on a biking trip through Austria and Bavaria, when on Friday reading main stream media the world broke down with WannaCry. Ok, I thought sensationalism by the main media but now as I’m at home, I cannot believe what I read in tech blogs and ... Read More

Mitigating application layer (HTTP(S)) DDOS attacks

| | HowTo, IT Security, networking
DDOS attacks seem to be new norm on the Internet. Years before only big websites and web applications got attacked but nowadays also rather small and medium companies or institutions get attacked. This makes it necessary for administrators of smaller sites to plan for the time they get attacked. This ... Read More

Implementing IoT securely in your company – Part 3

| | IT Security, networking
This is Part 3 of the series implementing IoT securely in your company, click here for part 1 and here for part 2. As it is quite common that new IoT devices are ordered and also maintained by the appropriate department and not by the IT department, it is important ... Read More
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Implementing IoT securely in your company – Part 2

| | IT Security, networking
After Part 1 which focused on setting up your network for IoT this post focus on making sure that the devices are the right ones and that they work in your network. The first can be accomplished by asking basic security questions and talking only with the more secure vendors ... Read More
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Implementing IoT securely in your company – Part 1

| | IT Security, networking
The last articles in this blog about IoT (often called Internet of Targets 😉 ) where about a specific cam or about IoT at home. This article series will be different, it will focus on the IoT in companies. Part one will talk about what you need to in order ... Read More
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