# /etc/systemd/system/tbitcoind.service

[Unit]
Description=Bitcoin Testnet daemon
After=network.target

[Service]

# Service execution
###################

ExecStart=/usr/local/bin/bitcoind -daemon -testnet \
                                  -pid=/run/tbitcoind/tbitcoind.pid \
                                  -conf=/home/bitcoin/.bitcoin/bitcoin.conf \
                                  -datadir=/home/bitcoin/.bitcoin \
                                  -startupnotify="chmod g+r /home/bitcoin/.bitcoin/testnet3/.cookie"

# Process management
####################
Type=forking
PIDFile=/run/tbitcoind/tbitcoind.pid
Restart=on-failure
TimeoutSec=300
RestartSec=30

# Directory creation and permissions
####################################
User=bitcoin
UMask=0027

# /run/tbitcoind
RuntimeDirectory=tbitcoind
RuntimeDirectoryMode=0710

# Hardening measures
####################
# Provide a private /tmp and /var/tmp.
PrivateTmp=true

# Mount /usr, /boot/ and /etc read-only for the process.
ProtectSystem=full

# Disallow the process and all of its children to gain
# new privileges through execve().
NoNewPrivileges=true

# Use a new /dev namespace only populated with API pseudo devices
# such as /dev/null, /dev/zero and /dev/random.
PrivateDevices=true

# Deny the creation of writable and executable memory mappings.
MemoryDenyWriteExecute=true

[Install]
WantedBy=multi-user.target