Ossi HerralainSensorFuBidirectional escape testingBidirectional or two-way escape testing verifies that escape from an isolated network can communicate both ways: from isolated environment…Oct 12, 2023Oct 12, 2023
Ossi HerralaRevenge of the WhitefishLast spring (2022–04–10) I was activating WWFF reference in a small municipality in Finland called Siikajoki. That day I only got 22 QSOs…Oct 20, 2022Oct 20, 2022
Ossi HerralaWWFF Ninja Activation in HiastinlahtiNinja Activation: Go to site, seen by nobody, have QSOs. Then leave no trace behind and vanish. Nobody knew about your activation before…Apr 13, 2022Apr 13, 2022
Ossi HerralaSunday WWFF activationToday’s ham radio WWFF activation headed to a small municipality in Finland called Siikajoki with a population of 5024 people and…Apr 13, 2022Apr 13, 2022
Ossi HerralaOvernight ham radio activation in Hailuoto, FinlandOur operation was in Hailuoto, a small island (200.53 km²) in the Gulf of Bothnia with a population less than thousand people. This is my…Nov 10, 2021Nov 10, 2021
Ossi HerralaHam radio activation in Hailuoto, FinlandOur operation was in Hailuoto, a small island (200.53 km²) in the Gulf of Bothnia with a population less than thousand people. This is my…May 10, 20211May 10, 20211
Ossi HerralainSensorFuInternet Protocol Next Header escapeIn IPv6 header it’s called “Next Header” and in IPv4 header it’s just “Protocol”. This eight bit value contains information about what…Jan 26, 2021Jan 26, 2021
Ossi HerralainSensorFuHow we turned 5G into 5kHacking is a good way of learning and hackathons are a great place to learn with other like minded people. And that was exactly what we…Dec 9, 2019Dec 9, 2019
Ossi Herrala110 m/s towards a planet!This is a short story about a survival scenario I played in the game Space Engineers by Keen Software House. I got inspiration to play…Jan 4, 2019Jan 4, 2019
Ossi HerralainSensorFuUsing static typing to protect against code injection attacksCode injection attack is a method of taking advantage of a flaw where an application can be tricked to relay malicious code from a system…Jan 16, 20181Jan 16, 20181