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Getting Started: Basics
Getting Started: For Renters
Getting Started: For Rig Owners
Getting Started: Tutorials
FAQ: User Account
FAQ: Rigs
xnonce is a stratum command that allows miners to receive xnonce1 updates without having to reconnect.
This was developed after the stratum protocol was widely in use, so support for it is sporadic in miners and pools.
If your pool uses xnonce, and a rig has specified it has xnonce, then MRR will send the command, and it will work with the pool.
If your pool does not use xnonce, there is nothing to worry about with the additional command.
If a rig has not specified it supports xnonce, you may inquire the rig owner to enable it if there is a rental; if you desire, though a rig owner may often not need to enable it normally or even have the miner or software support for it.
bfgminer supports the xnonce via software, and possibly cgminer versions.
This is done by appending #xnsub to the pool URL you are connecting to, this applies to rig owners only: To enable it with MRR, append #xnsub to the end of the proxy URL you are using. Note that renters or owners can not append this to the MRR pool interface.
stratum+tcp://eu-de01.miningrigrentals.com:3333/#skipcbcheck#xnsub Is an example. We also suggest #skipcbcheck if you are using bfgminer as well.
Note that xnonce is not required at MRR.