Ossi Herrala

During days I'm developing advanced techniques to escape from isolated or segregated IT and OT networks helping critical infrastructure and enterprises secure their assets. Co-founder and R&D lead in SensorFu.

During nights I'm mostly sleeping, but also coding, hacking, building fiber optic home network and practicing ham radio (POTA/WWFF, QRP, digital modes, antenna building).

See my ham radio Mastodon account: mastodon.radio/@oh8hub/

Ossi Herralaoherrala
2025-11-29

@thomasfuchs Collaborative writing is really fine if you're running a company with bunch of hackers and you tackle the boring writing parts together instead of one guy suffering alone for hours or days.

Ossi Herralaoherrala
2025-11-28

@pitrh How do you accomplish making a coffee before feeding the cat?

That would never work here. Even trying it is prone to serious "accidents".

Ossi Herralaoherrala
2025-11-24

@pesasa Oulun yliopistolla oli ainakin ennen iso WC, jossa useita koppeja. Valot hoituivat ilta-aikaan (tai aina) liiketunnistimella, joka ei kuitenkaan nähnyt koppeihin.

Se on kyllä taianomainen tunne kun koko vessa pimenee ja vain ilmastoinnin vaimea humina kuuluu taustalla.

Ossi Herralaoherrala
2025-11-12

Wha's your reason to not liste Wintersun's Sons Of Winter And Stars today, tommorrow and every day?

youtube.com/watch?v=Tl5T-glTdXw

Ossi Herrala boosted:
2025-11-11

Syksyn synkin sävel 2025 on loppusuoralla. Vielä ehdit äänestää! Täytä synkällisvelvollisuutesi kun vielä ehdit! Kuuntele biisejä suoratoistona tai lataa ne koneellesi, puntaroi tarkasti kolme suosikkiasi ja äänestä!
Lisätietoja: syksynsynkinsavel.blogspot.com/

#syksynsynkinsävel #syksynsynkinsävel2025 #gootti #goth #musiikki #skabat #funfunfun

Ossi Herrala boosted:
2025-11-11

#HamRadio and #Electronics #DIY crowd...

Favorite budget Oscilloscopes for general DIY, audio, and RF use?

Ossi Herralaoherrala
2025-11-11

@silmathoron @lina @cobratbq Thanks, that link is really helpful! Good stuff there.

But at the same time this is exactly the "configuring your own MUA" I mentioned earlier. Which for providing small patch one time for single project might be too much effort.

At least I'm so lazy.

Ossi Herralaoherrala
2025-11-11

@cobratbq @lina However, sending an inline diff without anything in between breaking it can be a real PITA. No idea if they require inline diff or if attachment is good here.

But sending inline diffs can lead into e.g. configuring your own MUA instead of using service provider's web mail client.

Ossi Herralaoherrala
2025-11-10

@rolle However, it's completely legal to share costs between friends. Just a hint :)

Ossi Herralaoherrala
2025-11-10

@tivilehti Se on fuusio. Ja sylinteri (tai lieriö).

Ossi Herrala boosted:
The BirdbassadorBirdbassador@jorts.horse
2025-10-27

Once again another "I'm in the wrong field" paper:
sciencedirect.com/science/arti

Bar chart captioned "Lateral bias in sleeping positions of domestic cats." showing a preference for leftward (266 instances) over rightward (142 instances) sleeping positions.
Ossi Herralaoherrala
2025-10-20

@platymew @mikrotik Ok right, I misunderstood. Sorry!

Ossi Herralaoherrala
2025-10-20
Ossi Herralaoherrala
2025-10-20

@platymew @mikrotik I just want to verify the terminology here: PoE splitter is used to separate (split) DC voltage from CAT cable. Usually DC is then a barrel connector that can be connected to the device. PoE injector is used to inject DC into CAT cable.

Mikrotik RBGPOE should work for gigabit PoE injection needs: mikrotik.com/product/RBGPOE

Ossi Herrala boosted:
2025-10-06

Meshtastic iOS app breaks EU law with sending lots of telemetry (logs, usage) to DataDog in US wthout user consent and without any kind of notification of the app doing so.

I reported this as issue and it got immediately closed without any explanation: github.com/meshtastic/Meshtast

#meshtastic #gdpr #datadog

Ossi Herralaoherrala
2025-10-02

@whitequark TCP's three way handholding might get complicated even before TLS's handholding is negotiated on top of it.

Ossi Herrala boosted:
2025-09-30

Hack After Dark tulee taas! 18.10.2025 Oulun Johteenhovilla järjestetään jo kuudes hakkerihenkinen tapahtuma. Luvassa puheita, ruokaa, keskusteluita, seuraa ja illanviettoa.

Liput myynnissä 1.10.2025 alkaen.
Lisätietoa: tarlab.fi/HackAfterDark

#had2025 #tietoturva #tapahtuma #hakkerit #oulu

Ossi Herrala boosted:
enderman0125 :neofox_flag_nb:mudkip@wetdry.world
2025-09-23
a captcha that asks the user to select all squares with socs that can boot mainline linux, below there are various squares with SoCs in them
Ossi Herralaoherrala
2025-09-15

@tomminieminen @Mika Mulla on Subarun ikkunoissa ihan sama. Kuskin penkiltä ei ikkunoiden "kaukosäätö" toimi akun irtikäyttämisen jälkeen. Ensin pitää ikkunan liikeradat "kalibroida" kyseisen ikkunan omasta ohjaimesta ajamalla ikkunan ensin ihan alas ja sitten 5cm pykälissä nostamalla se ylös kunnes ikkuna on täysin kiinni.

Ossi Herralaoherrala
2025-09-09

@foxglove @whangdoodler Aurinkopaneelien alla voi myös jatkaa viljelyä. Eräs käytetty termi tästä on . En tiedä onko tätä vielä suomessa tutkittu tai kokeiltu, mutta maankäytöllisesti se olisi varmasti järkevää.

sciencedirect.com/science/arti

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