Date: Mon, 20 Nov 2023 15:43:38 +0100 From: Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> To: void@f-m.fm Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: Re: the RATELIMIT kernel option Message-ID: <f61cba1f-092b-4352-a266-2f349c1c0097@plan-b.pwste.edu.pl> In-Reply-To: <ZVtjM6XzKfCf5Q1A@int21h> References: <ZVtjM6XzKfCf5Q1A@int21h>
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Hello void W dniu 20.11.2023 o 14:46, void pisze: > Hello hackers@, > > I've been looking at adding the RACK tcp kernel option, and reading > the instructions on > https://klarasystems.com/articles/using-the-freebsd-rack-tcp-stack/ > > They mention the RATELIMIT option for some network cards but I can find > no option of that name in LINT/NOTES so am not sure if it works with > just some or all network interfaces or what the tradeoffs are. Can > anyone here clarify please? or just point me to whatever I need to > look at, thanks I am not a hacker, but I have also sought a couple of times what FreeBSD hackers have done with the code. There are a few or even a bunch of undocumented options. Number one for me is still "options RSS". From my experience, the best way to read about them is by digging FreeBSD mailing lists[1], searching on FreeBSD's Phabricator[2] and ... using grep inside /usr/src. If you want to build stabe/1{3,4} with TCP RACK stack then mentioned article published on Klara Systems website provides still right guidance, then both: options TCPHPTS options RATELIMIT are required. 1. https://lists.freebsd.org/ 2. https://reviews.freebsd.org/ Cheers -- Marek Zarychta
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