Andreas Happe sometimes blogs about developmen, life or security. | Continue reading
Sometimes I want to work on client assignments (penetration-tests) from home, if I do that I am using my company VPN so that all traffic is routed thorugh their public IP address (which is white-listed by the client). I do not want for traffic to ever leave that VPN as that would … | Continue reading
I spent some time playing around with various LTE-options for my Raspberry Pi Access Point/Router setup.My Huawei E3372 USB LTE modem works find but only implements a fake network card. This means that a virtual network card is emulated, all traffic is NATted over a virtual route … | Continue reading
In one of my last experiments I replaced my crappy T-Mobile (now Magenta) 4G modem/access point with an OpenWRT-based cheap travel router and a 4G USB LTE modem. That doubled my speed over the wireless (WLAN) network but the setup was limited by the outdated and under-powered tra … | Continue reading
Recently I upgraded from my “old” Motorola/Lenovo G6 plus to a Xiaomi Mi Mix 2s.Why the new phone? Main reasons for that upgrade were: The old phone started to look like a banana. Seriously, I carry my phone in my back pockets and after a year that.. let to a more-than-slightly b … | Continue reading
During a recent assignment the customer server was utilizing a WebSocket for some notification transport, part of my assignment was to fuzz-test the used WebSocket (and the messages transported over it).To do this, I turned to my typical tools: PortSwigger BURP only supports disp … | Continue reading
My LTE internet connection (70 Mbit downstream, 15 MBit upstream) came with a combined Huawei B315s LTE modem/access point. As I was using it for the last two to three years a couple of problems did arise: the internet connection was often shaky, oftentimes the uplink connection … | Continue reading