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1. Embed this notice
   Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Saturday, 01-Feb-2025 23:59:26 JST Stéphane Bortzmeyer

   Email servers: Stalwart claims to replace the different programs (Postfix, Dovecot, SpamAssassin, OpenDKIM, etc) by one program.

   "Installing is simple'" (curl | sudo bash…)

   Bonus: there is an integrated analysis of #DMARC reports :-)

   #FOSDEM

   • Embed this notice
     Matthieu Herrb (mherrb@mastodon.tetaneutral.net)'s status on Saturday, 01-Feb-2025 23:59:23 JST Matthieu Herrb

     in reply to

     @bortzmeyer I've been running a test server for several month now. I've found it quite deceptive that some useful basic features are hidden behind the "entrerprise" commercial license.
     I'm not too sure anymore I want to replace my existing Sendmail/Postfix/OpenSMTPd + dovecot setups by Stalwart.

     Haelwenn /элвэн/ :triskell: likes this.
   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Saturday, 01-Feb-2025 23:59:24 JST Stéphane Bortzmeyer

     in reply to

     All the preentation of Stalwart was awfully marketing, with a lot of "intuitive", "modern", "enterprise-ready" and other corporate bullshit.

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Saturday, 01-Feb-2025 23:59:25 JST Stéphane Bortzmeyer

     in reply to

     Marketing: Bayes classification is now listed under "AI".

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 00:00:57 JST Stéphane Bortzmeyer

     in reply to

     Another all-in-one email server, mox.

     Includes EAI (internationalized email addresss)

     The speaker has a Go t-shirt (mox is written in Go)

     Unlike the previous talk, he emphasizes the problems that are outside of the control of the server (reverse IP, for instance)

     https://www.xmox.nl

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 00:00:58 JST Stéphane Bortzmeyer

     in reply to

     #DNS devroom at #FOSDEM. Already almost full.

     "getaddrinfo sucks, everything else is much worse"

     Haelwenn /элвэн/ :triskell: likes this.
   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 00:00:58 JST Stéphane Bortzmeyer

     in reply to

     • Valentin Gosu

     Valentin Gosu @valenting on name resolution "This talk may incluse some rants"

     getaddrinfo was invented in 1995…

     #FOSDEM

     Haelwenn /элвэн/ :triskell: likes this.
   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 00:00:59 JST Stéphane Bortzmeyer

     in reply to

     Very good talk about the synchronization of the all-in-one email server with #DNS: no standard, many custom APIs.

     Solution; a dedicated proxy, dnsclay (receives DNS dyn. update from mox and talks many custom APIs).

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 00:01:00 JST Stéphane Bortzmeyer

     in reply to

     "Setting up an email server requires to add around 15 #DNS records."

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 00:01:01 JST Stéphane Bortzmeyer

     in reply to

     "I don't understand why #DNSSEC is not yet the default for resolvers on Linux machines."

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 00:01:05 JST Stéphane Bortzmeyer

     in reply to

     A BIND maintainer comes into the room.

     "Sorry it is full. But you can come in."

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 01:08:56 JST Stéphane Bortzmeyer

     in reply to

     The good thing about getaddrinfo: it works and on all platforms.

     The bad things: not the full response details like the TTL (remember it is not just for #DNS), no way to control resolution from the application (some may say it is a good thing)

     And it is only for A/AAAA records. How to use SVCB?

     But also, Firefox (the speaker works for Mozilla) has a DoH client, DoH being easier / better than getaddrinfo for a Web browser.

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 01:09:11 JST Stéphane Bortzmeyer

     in reply to

     "Yes, I can do it for IPv6, with some tricks."

     #FOSDEM

     Haelwenn /элвэн/ :triskell: likes this.
   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 01:09:12 JST Stéphane Bortzmeyer

     in reply to

     "The entire picture is four gigapixels. Not all viewers can display it."

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 01:09:13 JST Stéphane Bortzmeyer

     in reply to

     "rDNS Map In Your Hands" by Alexey Milovidov It produces this: https://reversedns.space/ (by requesting every PTR for IPv4 space)

     https://mastodon.gougere.fr/@DNSresolver/113929400664745720 (PTR records are for traceroute and broken email servers)

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 01:09:14 JST Stéphane Bortzmeyer

     in reply to

     In many countries (like France…) these public #DNS resolvers are useful for freedom (access to censored content because of the increased demand of governments for DNS-based blocking).

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 01:09:15 JST Stéphane Bortzmeyer

     in reply to

     "Is big DNS taking over?" by Farzaneh Badiei (Digital Medusa)

     Will the big US-based public #DNS resolvers replace everything?

     Preliminary report at https://digitalmedusa.org/wp-content/uploads/2023/12/Upload-DNS-Resolvers-First-Draft-October.pdf

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 01:09:16 JST Stéphane Bortzmeyer

     in reply to

     The mess of programming. An official API for name resolution with full details (DNSQuery_A) works for HTTPS records in Windows 11 but does not work working in WIndows 10.

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 03:12:58 JST Stéphane Bortzmeyer

     in reply to

     • Peter van Dijk
     • Remi Gacogne

     And to end the day at the #DNS devroom, "Honey, I shrunk DNSdist" by @habbie (replacing @rgacogne, the maintainer who is sick without even the fault of the FOSDEM)

     Disclaimer: #dnsdist is used by the public DNS resolver {doh,dot,doq}.bortzmeyer.fr

     #FOSDEM

     Haelwenn /элвэн/ :triskell: likes this.
   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 03:12:59 JST Stéphane Bortzmeyer

     in reply to

     Replaced the old cooperative scheduling with per-thread libuv loops. "The kernel is smarter than we are"

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 03:13:05 JST Stéphane Bortzmeyer

     in reply to

     • Ondřej Surý

     "How to make BIND 9 fast(er)" by @ondrej

     New locks: https://dl.acm.org/doi/10.1145/2442516.2442532

     Use of userspace RCU (Read-Copy-Update)

     Making some data structures lock-free

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 03:13:07 JST Stéphane Bortzmeyer

     in reply to

     And proving that you own an IP network?

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 03:13:08 JST Stéphane Bortzmeyer

     in reply to

     For proving you own a Web site;, is a TXT in the DNS better than a HTML file in the Web site? Pros and cons?

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 03:13:09 JST Stéphane Bortzmeyer

     in reply to

     There is an Internet-Draft for that: https://datatracker.ietf.org/doc/draft-ietf-dnsop-domain-verification-techniques/

     See also https://keyoxide.org/

     #FOSDEM

   • Embed this notice
     Stéphane Bortzmeyer (bortzmeyer@mastodon.gougere.fr)'s status on Sunday, 02-Feb-2025 03:13:10 JST Stéphane Bortzmeyer

     in reply to

     "Prove website, domain, and network ownership" by Mark Overmeer

     Just do like Oracle, add TXT records at the apex. https://mastodon.gougere.fr/@DNSresolver/113929489912379335

     #FOSDEM