August 2024

kernel: Limiting closed port RST response from x to y packets/sec

Leave a Comment / dma, FreeBSD, General, Mail, Open Source, Postfix / By /

For 3 days now, I’ve been seeing these messages. If you search online, it’s usually the result of port scanning. Aug 7 14:05:15 zuul kernel: Limiting closed port RST response from 212 to 195 packets/sec Aug 7 14:05:16 zuul kernel: Limiting closed port RST response from 219 to 215 packets/sec Aug 7 14:05:17 zuul kernel: Limiting closed port RST response from 220 to 193 packets/sec Aug 7 14:05:18 zuul kernel: Limiting closed port […]

kernel: Limiting closed port RST response from x to y packets/sec Read More »

Replacing postfix with dma + auth

Leave a Comment / dma, Mail, Postfix / By /

It’s a muggy Friday morning, sitting outside the cafe – it’s tolerable in the shade with a slight breeze and cold iced-latte in a glass. Dogs walking past, lots of pats. It’s time to change most of my hosts from Postfix (my favorite MTA) to dma (in FreeBSD, no install required). I have previously moved most of my jail hosts from Postfix to dma. A few days ago, I changed one of my

Replacing postfix with dma + auth Read More »

Scroll to Top