torspec/proposals/204-hidserv-subdomains.txt
2017-03-08 11:52:57 -05:00

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Filename: 204-hidserv-subdomains.txt
Title: Subdomain support for Hidden Service addresses
Author: Alessandro Preite Martinez
Created: 6 July 2012
Status: Closed
1. Overview
This proposal aims to extend the .onion naming scheme for Hidden
Service addresses with sub-domain components, which will be ignored
by the Tor layer but will appear in HTTP Host headers, allowing
subdomain-based virtual hosting.
2. Motivation
Sites doing large-scale HTTP virtual hosting on subdomains currently
do not have a good option for exposure via Hidden Services, short of
creating a separate HS for every subdomain (which in some cases is
simply not possible due to the subdomains not being fully known
beforehand).
3. Implementation
Tor should ignore any subdomain components besides the Hidden
Service key, i.e. "foo.aaaaaaaaaaaaaaaa.onion" should be treated
simply as "aaaaaaaaaaaaaaaa.onion".