This is not a generic "I run a website!" advertisement feature. NODE_EXT_SERVICES is tightly focused on services that exist if-any-only-if a P2P bitcoin node (bitcoind) is reachable via the same advertised address.
You may usefully create overlay networks of specialized services. On Fri, Aug 8, 2014 at 6:41 AM, Christian Decker <decker.christ...@gmail.com> wrote: > I wonder whether we actually want to support this kind of advertisement in > the P2P protocol. We have a working mechanism for protocol extensions in the > P2P network (service flags) so this is obviously only for services that are > not P2P extensions, so why have them in there at all? > > I'd argue that a parallel network, external to Bitcoin, could take over the > task of advertising external services. > > Regards, > Chris > > -- > Christian Decker > > > On Fri, Aug 8, 2014 at 11:26 AM, Wladimir <laa...@gmail.com> wrote: >> >> On Fri, Aug 8, 2014 at 12:15 PM, Wladimir <laa...@gmail.com> wrote: >> > On Fri, Aug 8, 2014 at 12:01 PM, Mike Hearn <m...@plan99.net> wrote: >> >>> He wants to use it to advertise services that are not part of the P2P >> >>> protocol itself, but run on a different port. Reserving services bits >> >>> for those is not acceptable. >> >> >> >> >> >> Why not? Does the port matter much? >> > >> > Yes. The services bits are for advertising services on the P2P >> > network. That's not open for discussion. >> >> It also wouldn't work. A bit is not enough to find an external service >> except in the naive case where the advertised service would have a >> fixed port. Not even bitcoind has a fixed port. So there needs to be a >> mechanism to find how to connect to the 'external service'. This is >> provided by the proposed extension. >> >> It would in principle be possible to advertise an extra service bit >> *in addition to* this one, to make it easier to find through the addr >> mechanism. But it would be confusing and IMO an abuse of P2P service >> bits. >> >> Wladimir >> >> >> ------------------------------------------------------------------------------ >> Want fast and easy access to all the code in your enterprise? Index and >> search up to 200,000 lines of code with a free copy of Black Duck >> Code Sight - the same software that powers the world's largest code >> search on Ohloh, the Black Duck Open Hub! Try it now. >> http://p.sf.net/sfu/bds >> _______________________________________________ >> Bitcoin-development mailing list >> Bitcoin-development@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/bitcoin-development > > > > ------------------------------------------------------------------------------ > Want fast and easy access to all the code in your enterprise? Index and > search up to 200,000 lines of code with a free copy of Black Duck > Code Sight - the same software that powers the world's largest code > search on Ohloh, the Black Duck Open Hub! Try it now. > http://p.sf.net/sfu/bds > _______________________________________________ > Bitcoin-development mailing list > Bitcoin-development@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bitcoin-development > -- Jeff Garzik Bitcoin core developer and open source evangelist BitPay, Inc. https://bitpay.com/ ------------------------------------------------------------------------------ Want fast and easy access to all the code in your enterprise? Index and search up to 200,000 lines of code with a free copy of Black Duck Code Sight - the same software that powers the world's largest code search on Ohloh, the Black Duck Open Hub! Try it now. http://p.sf.net/sfu/bds _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
