Install bitcoin - bitcoind - v 0.19.0.1 - from binary - bitcoin.org - quick install

install_bitcoin.sh

set -xe

mkdir ~/tmp
cd ~/tmp

wget https://bitcoin.org/bin/bitcoin-core-0.19.0.1/bitcoin-0.19.0.1-x86_64-linux-gnu.tar.gz --no-check-certificate

# check the shasum

tar xvf bitcoin-0.19.0.1-x86_64-linux-gnu.tar.gz

mv bitcoin-0.19.0.1 ~/bitcoin

~/bitcoin/bin/bitcoind

# let it run for 5 seconds
# kill it (ctrl C)

# edit the main conf
vim ~/.bitcoin/bitcoin.conf

# add options for RPC connections and txindex (for block explorer API usage), add optional pruning
#
# txindex=1
# # rpcuser=bitcoinrpc
# # rpcpassword=CHANGE-ME-538bb162ac1c696246167fd30bf9dd
# rpcauth=bitcoinrpc:..... # generate this via https://raw.githubusercontent.com/bitcoin/bitcoin/master/share/rpcauth/rpcauth.py
#
# # optimizations
# dbcache=1000
# maxmempool=4000
# 
# # enable RPC access
# server=1
# rpcbind=1.2.3.4 # machine public ip (for a public node) or local network range
# rpcallowip=2.3.4.5 # your App's IP or local network range


~/bitcoin/bin/bitcoind 

# enjoy!