Re: [∞ YH] solo.ckpool.org 2% fee solo mining 256 blocks solved!

Setting up a v3 onion service is a far better long-term solution against censorship. The pool may opt to set up a single onion service instead of a conventional one in order to reduce latency, but at the cost of reduced server-side location anonymity. A single onion service uses only three hops in the circuit instead of the usual six.

An onion service may be set up as a single onion service by adding the following two options to the onion service's torrc entry:

Code:

HiddenServiceSingleHopMode 1
HiddenServiceNonAnonymousMode 1

Here are the relevant entries for single onion services in the Tor manual:

Quote from: https://2019.www.torproject.org/docs/tor-manual.html.en

HiddenServiceSingleHopMode 0|1

Experimental - Non Anonymous Hidden Services on a tor instance in HiddenServiceSingleHopMode make one-hop (direct) circuits between the onion service server, and the introduction and rendezvous points. (Onion service descriptors are still posted using 3-hop paths, to avoid onion service directories blocking the service.) This option makes every hidden service instance hosted by a tor instance a Single Onion Service. One-hop circuits make Single Onion servers easily locatable, but clients remain location-anonymous. However, the fact that a client is accessing a Single Onion rather than a Hidden Service may be statistically distinguishable.

WARNING: Once a hidden service directory has been used by a tor instance in HiddenServiceSingleHopMode, it can NEVER be used again for a hidden service. It is best practice to create a new hidden service directory, key, and address for each new Single Onion Service and Hidden Service. It is not possible to run Single Onion Services and Hidden Services from the same tor instance: they should be run on different servers with different IP addresses.

HiddenServiceSingleHopMode requires HiddenServiceNonAnonymousMode to be set to 1. Since a Single Onion service is non-anonymous, you can not configure a SOCKSPort on a tor instance that is running in HiddenServiceSingleHopMode. Can not be changed while tor is running. (Default: 0)

HiddenServiceNonAnonymousMode 0|1

Makes hidden services non-anonymous on this tor instance. Allows the non-anonymous HiddenServiceSingleHopMode. Enables direct connections in the server-side hidden service protocol. If you are using this option, you need to disable all client-side services on your Tor instance, including setting SOCKSPort to "0". Can not be changed while tor is running. (Default: 0)