1 # iank: copied from /a/opt/bitcoin/contrib/init/bitcoind.service
2 # for sources as of 2022-11-14
4 # It is not recommended to modify this file in-place, because it will
5 # be overwritten during package upgrades. If you want to add further
6 # options or overwrite existing ones then use
7 # $ systemctl edit bitcoind.service
8 # See "man systemd.service" for details.
10 # Note that almost all daemon options could be specified in
11 # /etc/bitcoin/bitcoin.conf, but keep in mind those explicitly
12 # specified as arguments in ExecStart= will override those in the
16 Description=Bitcoin daemon
17 Documentation=https://github.com/bitcoin/bitcoin/blob/master/doc/init.md
19 # https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/
20 After=network-online.target
21 Wants=network-online.target
24 # iank: on a laptop, when it is doing its catchup, it tends to jump
25 # between 100% and 180% cpu and makes the fan spin annoyingly.
26 # 50% still had annoying fan spin. trying out 20%
28 ExecStart=/usr/bin/bitcoind -daemonwait \
29 -pid=/run/bitcoind/bitcoind.pid \
30 -conf=/etc/bitcoin/bitcoin.conf \
31 -datadir=/var/lib/bitcoind
33 # Make sure the config directory is readable by the service user
34 PermissionsStartOnly=true
35 ExecStartPre=/bin/chgrp bitcoin /etc/bitcoin
41 PIDFile=/run/bitcoind/bitcoind.pid
43 TimeoutStartSec=infinity
46 # Directory creation and permissions
47 ####################################
49 # Run as bitcoin:bitcoin
54 RuntimeDirectory=bitcoind
55 RuntimeDirectoryMode=0710
58 ConfigurationDirectory=bitcoin
59 ConfigurationDirectoryMode=0710
62 StateDirectory=bitcoind
63 StateDirectoryMode=0710
68 # Provide a private /tmp and /var/tmp.
71 # Mount /usr, /boot/ and /etc read-only for the process.
74 # Deny access to /home, /root and /run/user
77 # Disallow the process and all of its children to gain
78 # new privileges through execve().
81 # Use a new /dev namespace only populated with API pseudo devices
82 # such as /dev/null, /dev/zero and /dev/random.
85 # Deny the creation of writable and executable memory mappings.
86 MemoryDenyWriteExecute=true
89 WantedBy=multi-user.target