go-ethereum systemd config

geth.service

[Unit]
Description=go-ethereum node
After=network.target

[Service]
Type=simple
User=geth
Group=geth
## ===== initial sync: no light peers, please =====
ExecStart=/usr/bin/geth --nousb --datadir /home/geth/.ethereum --cache 2048 --txpool.pricelimit 99999999999 --txpool.globalslots 1024
## ============ full nodes' monitoring ============
#ExecStart=/usr/bin/geth --nousb --datadir /home/geth/.ethereum --cache 2048 --txpool.pricelimit 1000000000 --txpool.globalslots 2048 --txpool.accountslots 2 --txpool.accountqueue 2 --maxpeers 1000
## ================ live LES mode =================
#ExecStart=/usr/bin/geth --nousb --datadir /home/geth/.ethereum --cache 2048 --txpool.pricelimit 1000000000 --txpool.globalslots 2048 --txpool.accountslots 2 --txpool.accountqueue 2 --lightserv 50 --lightpeers 775 --maxpeers 800
## =============== debug LES mode =================
#ExecStart=/usr/bin/geth --nousb --datadir /home/geth/.ethereum --cache 2048 --txpool.pricelimit 1000000000 --txpool.globalslots 2048 --txpool.accountslots 2 --txpool.accountqueue 2 --lightserv 50 --lightpeers 3000 --maxpeers 3025 --vmodule "downloader=4"
## restart options
#KillSignal=SIGINT
TimeoutStopSec=120
Restart=on-failure

[Install]
WantedBy=multi-user.target

Oh, also: this is on the ETH main-net; on Ropsten, the same .service works pretty well on a much lower-spec machine, because the "~ 500" light client limit is never even reached, there's a lot less transactions, the chain state is smaller, etc..