Recently on one of my personal servers, I upgraded OpenSSL to 3.2.1 and everything seemed to go smoothly. However, I then noticed that though my Postfix MTA (Mail Transfer Agent) seemed to be working, I didn’t get any updates in my email client. That, to me, indicated a problem with my Dovecot MDA (Mail Delivery …
Category: Linux
Apr 06 2023
Fixing Intel Wi-Fi 6 AX200 latency and ping spikes in Linux
Recently, I purchased a mini-PC with an embedded Intel Wi-Fi 6 AX200 wireless chipset and installed Gentoo Linux on it. The reason I purchased the mini-PC was to replace my ageing music server (running MPD), but I also wanted to use it for playing retro video games through my entertainment centre. Everything went well with …
Mar 26 2021
LetsEncrypt SSL certificates for vhosts within the mail stack – via Postfix (SMTP) and Dovecot (IMAP)
For a long time, I didn’t care about using self-signed SSL certificates for the mail stack because 1) they still secured the connection to the server, and 2) those certificates weren’t seen or utilised by anyone other than me. However, for my datacentre infrastructure which houses clients’ websites and email, using self-signed or generic certificates …
Thought for the Moment
