Jan-Pieter Cornet

xs4all sysadmin, programmer, hacker, rock-climber and father

[Jan-Pieter Cornet @johnpc42]

@BlendleNL die #AI stemmen zijn niet om aan te horen. Ik ga m'n nieuws voorlopig elders halen. Jammer! 👋

[Spamhaus @spamhaus]

Qakbot 🦆🤖 takedown!!! Qakbot has been disrupted and dismantled by the FBI following a multinational effort. We will be assisting with the remediation - more info to follow...
#malware #takedown #qakbot

https://t.co/Fj2IBpI5fR

[Spamhaus @spamhaus]

“We'll kill spam in two years”❗Breaking News: Spam is still here❗
This Bill Gates gem is now almost 20 years old 🎂 👇https://t.co/EYxrTcDWpX
And how ironic, Spamhaus researchers now observe Microsoft to be the worst ISP, placing it top of Spamhaus’ CSS List.
#SpamDefinitelyNotDead #TakeActionMicrosoft

[Spamhaus @spamhaus]

It's not difficult for our ticketing team to spot when our researchers discover a new group of spammers to shut down 🎯 Look at the spike in tickets (bottom) vs. listings (top)!

One new rule and a few thousand listings in less than one week equals A LOT of angry spammers 😡 !

🤘#ResearchersRule #TicketDeskTales

[Jan-Pieter Cornet @johnpc42]

@klm na een vrij irritante notificatie met popup uit de app, heb ik alle app permissies maar ingetrokken. Nog een #klmhack? Of een rogue marketeer die de boel aan het verpesten is?

[Jan-Pieter Cornet @johnpc42]

@VDukhovni @xs4cso Ah, yes, you are right. I stand corrected, X3 is no longer useful.

[Jan-Pieter Cornet @johnpc42]

@SAAO @planetarysci @fallingstarIfA ... we still need to know what the field of view was. Or what the time span of the movie is. Hope I'm correct so far? Thanks! 4/4

[Jan-Pieter Cornet @johnpc42]

@SAAO @planetarysci @fallingstarIfA so it came from the left in this image (as could be guessed from the debris that came off, at least DART didn't punch through the rubble pile!). Also, the debris formed a massive cloud of tens of km across, apparently. But for proper measurements 3/X

[Jan-Pieter Cornet @johnpc42]

@VDukhovni @xs4cso The mail servers are no longer operational, so all records can be removed. I'm not sure about X3 though, isn't that still marginally useful for old android compatibility? LE says as much in https://t.co/HBJlEpH16t

[Jan-Pieter Cornet @johnpc42]

My last day working for XS4ALL... Did some fixes on the few servers that will remain running, wiped a lot of data, shut the door behind me, then had a nice drink with colleagues and friends. Strange feeling that I won't go back there, but excited to be looking for new things...

[Robert Scheer @rj667]

Laatste minuten van de XS4ALL shell-server. #xs4all #exit4all

[Robert Scheer @rj667]

En gevonden door collega @johnpc42 #xs4all #exit4all

[Ton Kersten @TonKersten]

The @xs4all team cracked the @ATComputing code at @mch2022 and got themselves a nice price.
Crack the code and open a locker at the ATtent

[Jan-Pieter Cornet @johnpc42]

@rckjnsn @KarinSpaink @jpluimers @Jan_WdeVries @JeroenFrijters @xs4all @corbosman Zodra je lijn gemigreerd is naar KPN, werken de https://t.co/ccNVGBJE3J DNS entries niet meer. Zie punt I3 op https://t.co/93mYAgB1y9

[Jan-Pieter Cornet @johnpc42]

@MichielKlaver @PeterBremer10 @cyber_hw @FreedomNetNL Je zou nog "forced TLS bij mail ophalen" en "RequireTLS" kunnen noemen, maar XS heeft die laatste (rfc8689) ook nooit helemaal ontwikkeld. Alleen de header werd gesupport en dat was experimenteel. Mis je nog meer?

[Jan-Pieter Cornet @johnpc42]

@ejvanuden @internet_nl @xs4all Yep. Nog wel. Nog niet bekend wanneer dat uit gaat.

[Jan-Pieter Cornet @johnpc42]

I was going to type “book”. The internet is awful! ⁦@drbecky_⁩

[Jan-Pieter Cornet @johnpc42]

@internet_nl @xs4all .. verduidelijking: dit geldt specifiek en alleen voor de mail servers. Voor je thuis aansluiting worden IPv6 en DNSSEC gewoon gesupport, net als bij @xs4all.

[Jan-Pieter Cornet @johnpc42]

@internet_nl @xs4all Helaas, met de omzetting van de mail flow naar KPN zijn er een aantal security features verdwenen: DANE, MTA-STS, DNSSEC, IPv6, DMARC reporting&rejects, customer source IP masking, DMARC aligning alleen bij AUTH&From match, en wat DNSBL mirrors.