Re: bitcoin-cli dumpprivkey Only legacy wallets are supported by this command
I failed to follow instructions properly. I was having issues getting the exact address. However, I found a better solution, I think. I found BlueWallet on the App Store. I was able to use the xpub key to import a watch only wallet into it. This is actually the functionality I wanted on the iPhone.
If you actually asked how to create a watching-only wallet from your Bitcoin Core,I would've been suggested you to get the descriptor's extended public key in the the first reply.
I'm still new to this stuff. I already managed to send a small amount of money into a wallet address with no private key. 
Right after that, try to send from Bitcoin Core where you got the xpub key. It's to make sure that your setup works before sending more bitcoins into it.
Quote from: Fudmottin
The thread was inspired by me wanting to setup a miner that is hopefully fast enough to get me accepted into a mining pool. I'm currently shopping for an ASIC solution. In the meantime, I can do GPU (I think) with a software I downloaded.
Bitcoins cannot be mined with GPU at today's network difficulty, just wait for your SHA256 ASIC to be shipped.Your only option with GPU to earn bitcoins is to use something that mines Altcoin but payouts in Bitcoin. For example: Nicehash
(DYOR in Mining (Altcoins) board)