Re: [dmarc-ietf] Doing a tree walk rather than PSL lookup
John R Levine <johnl@taugh.com> Tue, 24 November 2020 19:29 UTC
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Date: Tue, 24 Nov 2020 14:29:11 -0500
Message-ID: <e5d3a3bc-8a44-7b33-bdda-ca457ff3e984@taugh.com>
From: John R Levine <johnl@taugh.com>
To: Alessandro Vesely <vesely@tana.it>, dmarc@ietf.org
In-Reply-To: <36f4f840-0911-56f5-185b-3f60166eab47@tana.it>
References: <20201124170351.C430227DFEBF@ary.qy> <36f4f840-0911-56f5-185b-3f60166eab47@tana.it>
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Subject: Re: [dmarc-ietf] Doing a tree walk rather than PSL lookup
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> Right. The optimal solution would be to load the list and the lookup > algorithm as a shared object. Currently, my filter has its private copy of > it. But then I don't reload the filter so often that parsing the file is > noticeable. To wit, loading the virus database takes much much longer. Indeed. I don't think that processing the PSL is an overwhelming amount of work, but I also don't think there is much difference in performance between using the PSL and making DNS queries that are likely to be answered from a local cache. > "Holy Roman Empire" Organizations, typically universities, where the nominal organization tree and the actual control are different. The PSL isn't useful because the party that controls their Org domain often doesn't control lower parts of the DNS tree. Regards, John Levine, johnl@taugh.com, Taughannock Networks, Trumansburg NY Please consider the environment before reading this e-mail. https://jl.ly
- [dmarc-ietf] Doing a tree walk rather than PSL lo… John R Levine
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Jesse Thompson
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Dave Crocker
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Jesse Thompson
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Dave Crocker
- Re: [dmarc-ietf] Doing a tree walk rather than PS… John Levine
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Alessandro Vesely
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Dave Crocker
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Joseph Brennan
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Todd Herr
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Dave Crocker
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Todd Herr
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Dave Crocker
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Murray S. Kucherawy
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Murray S. Kucherawy
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Jesse Thompson
- Re: [dmarc-ietf] Doing a tree walk rather than PS… John Levine
- Re: [dmarc-ietf] Doing a tree walk rather than PS… John Levine
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Dave Crocker
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Alessandro Vesely
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Doug Foster
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Alessandro Vesely
- Re: [dmarc-ietf] Doing a tree walk rather than PS… John R Levine
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Murray S. Kucherawy
- Re: [dmarc-ietf] Doing a tree walk rather than PS… John Levine
- Re: [dmarc-ietf] Doing a tree walk rather than PS… ned+dmarc
- Re: [dmarc-ietf] Doing a tree walk rather than PS… Alessandro Vesely