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c4a147cfea
0244416aacbad03e4ebe8f2c95c7861a318916ea security: restrict abis in bitcoind.service (Charlie) Pull request description: [As noted here](https://www.freedesktop.org/software/systemd/man/systemd.exec.html#MemoryDenyWriteExecute=), it's a good idea to pair `MemoryDenyWriteExecute=true` with `SystemCallArchitectures=native` because `MemoryDenyWriteExecute` can be circumvented in some operating systems which support multiple ABIs like x86/x86-64. This helps restrict the possible application binary interfaces (ABIs) that can be used when running bitcoind through systemd, reducing the attack surface area. ACKs for top commit: laanwj: ACK 0244416aacbad03e4ebe8f2c95c7861a318916ea . This is a sensible security feature. 0xB10C: ACK 0244416aacbad03e4ebe8f2c95c7861a318916ea Tree-SHA512: 77a35b0674d8d67d857cd20ae1b8cd011f82d6f5ed21bc106cbe45bfa937e786ddc1bf7261e3bdb8c289df1224e91658760905d2c8f37cc4c6506ef8037ad158
86 lines
2.3 KiB
Desktop File
86 lines
2.3 KiB
Desktop File
# It is not recommended to modify this file in-place, because it will
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# be overwritten during package upgrades. If you want to add further
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# options or overwrite existing ones then use
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# $ systemctl edit dashd.service
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# See "man systemd.service" for details.
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# Note that almost all daemon options could be specified in
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# /etc/dash/dash.conf, but keep in mind those explicitly
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# specified as arguments in ExecStart= will override those in the
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# config file.
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[Unit]
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Description=Dash daemon
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Documentation=https://github.com/dashpay/dash/blob/master/doc/init.md
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# https://www.freedesktop.org/wiki/Software/systemd/NetworkTarget/
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After=network-online.target
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Wants=network-online.target
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[Service]
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ExecStart=/usr/bin/dashd -daemonwait \
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-pid=/run/dashd/dashd.pid \
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-conf=/etc/dash/dash.conf \
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-datadir=/var/lib/dashd
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# Make sure the config directory is readable by the service user
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PermissionsStartOnly=true
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ExecStartPre=/bin/chgrp dashcore /etc/dash
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# Process management
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####################
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Type=forking
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PIDFile=/run/dashd/dashd.pid
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Restart=on-failure
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TimeoutStartSec=infinity
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TimeoutStopSec=600
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# Directory creation and permissions
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####################################
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# Run as dash:dash
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User=dashcore
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Group=dashcore
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# /run/dashd
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RuntimeDirectory=dashd
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RuntimeDirectoryMode=0710
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# /etc/dash
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ConfigurationDirectory=dash
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ConfigurationDirectoryMode=0710
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# /var/lib/dashd
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StateDirectory=dashd
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StateDirectoryMode=0710
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# Hardening measures
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####################
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# Provide a private /tmp and /var/tmp.
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PrivateTmp=true
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# Mount /usr, /boot/ and /etc read-only for the process.
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ProtectSystem=full
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# Deny access to /home, /root and /run/user
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ProtectHome=true
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# Disallow the process and all of its children to gain
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# new privileges through execve().
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NoNewPrivileges=true
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# Use a new /dev namespace only populated with API pseudo devices
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# such as /dev/null, /dev/zero and /dev/random.
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PrivateDevices=true
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# Deny the creation of writable and executable memory mappings.
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MemoryDenyWriteExecute=true
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# Restrict ABIs to help ensure MemoryDenyWriteExecute is enforced
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SystemCallArchitectures=native
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[Install]
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WantedBy=multi-user.target
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