Quick-start guide for those already mining on OCEAN:
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Bitcoin Knots is required. This can be found in the Start9 Community Marketplace.
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Set up simpleproxy as explained in the last section of this document.
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Put a valid Bitcoin address into Datum-Gateway's config and start the service.
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Point your miners to the IP and PORT of your Start9 Server and Datum-Gateway service respectively. (Something like 192.168.x.y replacing x and y as necessary for the Start9 Server IP. 23334 is the default port for Datum-Gateway.)
See below for more comprehensive instructions.
Warning - using Datum-Gateway on StartOS v0.3.5.1 in a typical scenario requires making the service accessible over LAN via IP:Port. This requires tinkering with your StartOS server as most Bitcoin mining hardware cannot use mDNS.
If you feel comfortable doing that, follow the instructions for installing simpleproxy at the bottom of this document.
If you do not, you should wait for StartOS v0.3.6.
Datum-Gateway is for solo mining!
You can pay yourself the entire block reward for any blocks your find (non-pooled mining).
You can also Pool Mine on a pool that supports DATUM where you will split rewards with other miners for increased cash flow.
By default, Datum-Gateway will do the latter on https://ocean.xyz without any additional configuration beyond entering a Bitcoin address under "Bitcoin Address".
Datum-Gateway is configured to connect to OCEAN by default. This means splitting rewards with other miners on OCEAN whilst making your own blocks.
By default, rewards from mining on OCEAN will go to Bitcoin addresses written in your miners, not your Datum-Gateway config unless you disable Pool Pass Full Users.
If you have mined on OCEAN before and wish to use Datum-Gateway now, you can leave the Bitcoin addresses in your miners, they will override what is written in Datum's config - just leave "Pool Pass Full Users" enabled.
(You will still need to enter a valid Bitcoin address into your Datum-Gateway config. This is simply a fail-safe should the pool go down and it will be where your rewards go if you successfully mine a block. Datum-Gateway will not start without a valid Bitcoin address configured.)
If you chose to write only worker names in your miners and omit Bitcoin address(es) then you must disable "Pool Pass Full Users" and then the Bitcoin address in your Datum-Gateway config will be what gets used on OCEAN. Choose this option if you would like to just have worker names in your miners rather than Bitcoin addresses with worker names appended. See the next section for more details on setting up your miners.
Point your miners to the IP address of your Start9 Server followed by the port of the Datum-Gateway service. This is 23334 by default so in your miner UI under "Stratum URL"/"Host"/"Pool"/similar you will enter something like this:
stratum+tcp://192.168.x.y:23334
or
stratum+tcp://10.0.0.x:23334 replacing x/y as appropriate.
Under "Username"/"Worker" enter a Bitcoin address. This is where your OCEAN rewards will go. You can append this with unique worker information if desired.
Examples:
Just a Bitcoin address for if you do not wish to identify workers on OCEAN's stats:
bc1qabcdefghijklmnopqrstuvwxyz in each of your miner's usernames. This will make all workers collectively appear as default on OCEAN's stats. You may wish to do this to obscure the number of workers you have or their hashrate as OCEAN's stats are all public.
If you wish to identify each worker then you can append worker names to the addresses as follows:
bc1qabcdefghijklmnopqrstuvwxyz.bitaxe
bc1qabcdefghijklmnopqrstuvwxyz.bitaxe2
bc1qabcdefghijklmnopqrstuvwxyz.whatsminer2000
bc1qabcdefghijklmnopqrstuvwxyz.antmineringarage
etc
You can also omit the Bitcoin address from your miners and just use worker names. You must then disable "Pool Pass Full Users" and the Bitcoin address in your Datum-Gateway's config will be used.
Password can be left blank. If your miner insists on having something written there, you can write "x" or whatever you'd like.
Note: This means no rewards unless you find blocks. Make sure you're familiar with the differences to Pooled Mining.
To do this with Datum-Gateway, simply remove the text from Datum Pool Host in your config and disable "Pooled Mining Only".
With this setup, you will keep all rewards from any blocks you find and they will be paid out to the address in "Pool Address".
With default settings, you will pool-mine on OCEAN with no failover. If your connection to the pool fails, DATUM will stop and your miners will switch to mining on any backup pool they are configured to use.
If you wish to failover to non-pool mining, simply disable "Pool Mining Only".
If you wish to intentionally non-pool mine that requires removing the text in Datum Pool Host as in the prior section.
For StartOS v0.3.5.1 you'll need to do the following:
ssh in to your Start9 Server https://docs.start9.com/0.3.5.x/user-manual/ssh
Copy and paste the following lines of code one by one:
sudo -i
/usr/lib/startos/scripts/chroot-and-upgrade
apt install simpleproxy -y
Now copy and paste the following chunk of code in one command:
echo -e '[Unit]\nDescription=Simpleproxy Datum Forward\nWants=podman.service\nAfter=podman.service\n\n[Service]\nType=simple\nRestart=always\nRestartSec=3\nExecStartPre=/bin/bash -c "/bin/systemctl set-environment IP=$(ip route | grep default | awk '''{print
Next, copy and paste the following:
systemctl enable simpleproxy.datum.service
Then finally:
exit
Your server will now restart and will be accessible to miners on your LAN!