https://www.ethernodes.org/berlin
https://geth.ethereum.org/docs/install-and-build/installing-geth#install-on-ubuntu-via-ppas
https://github.com/ethereum/go-ethereum
sudo add-apt-repository -y ppa:ethereum/ethereum
sudo apt-get update
sudo apt-get install ethereum
Dump config:
geth --rpcapi eth,web3,debug,txpool,net,shh,db,admin,debug --rpc --ws --gcmode full --rpcport=5011 dumpconfig