requirements:
2GB Ram
~30GB Disk space on Testnet
~200GB Disk space on Mainnet

setting up the system: install bitcoind and let it sync,  then install lnd and setup a wallet

Installing bitcoind:

sudo apt-add-repository ppa:bitcoin/bitcoin

sudo apt-get update

sudo apt-get install bitcoind

Start bitcoind:
bitcoind -testnet -rpcuser=kek -rpcpassword=kek -server -rest -daemon -zmqpubrawblock=tcp://127.0.0.1:29000 -zmqpubrawtx=tcp://127.0.0.1:29000

Check the status of the bitcoin client: "bitcoin-cli -rpcuser=kek -rpcpassword=kek -testnet getblockcount"

Install lnd as recommended, make a new wallet and let it sync.

Start LND:

./lnd --bitcoin.active --bitcoin.testnet--bitcoind.rpcuser=kek --bitcoind.rpcpass=kek --bitcoin.node=bitcoind --bitcoind.zmqpath=tcp://127.0.0.1:29000 --rpclisten=0.0.0.0:10009