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Install Folding@home FAHClient on Linux as a systemd service unit

Install Folding@home FAHClient on Linux as a systemd service unit

Republished on my website, keeping this version here for historical reasons.

Install FAHClient as documented in the official guide. Stop the traditional init script service that was created and automatically started.

$ sudo /etc/init.d/FAHClient stop

Move the init script to another location. Path /usr/local/bin can be changed, but be sure to use the correct path in the service unit file of the next step.

$ sudo mv /etc/init.d/FAHClient /usr/local/bin

Copy the contents of the gist Systemd service unit for Folding@Home Client into (a new) file /etc/systemd/system/fahclient.service. File contents included here:

[Unit]
Description=Folding@Home V7 Client
Documentation=https://folding.stanford.edu/home/the-software/

[Service]
Type=simple
PIDFile=/var/run/fahclient.pid
ExecStart=/usr/local/bin/FAHClient -v start
ExecReload=/usr/local/bin/FAHClient -v restart
ExecStop=/usr/local/bin/FAHClient -v stop
KillMode=process

[Install]
WantedBy=multi-user.target

Then update its ownership and permissions as below

$ sudo chown root:root /etc/systemd/system/fahclient.service
$ sudo chmod u=rw,go=r /etc/systemd/system/fahclient.service

The systemd service unit for FAHClient is installed. Reload systemd manager configuration

$ sudo systemctl daemon-reload

Query the status of service unit.

$ sudo systemctl status --full fahclient.service

Start and stop as a regular systemd service

$ sudo systemctl stop fahclient.service
$ sudo systemctl start fahclient.service

Folding@home is a distributed computing project for disease research that simulates protein folding, computational drug design, and other types of molecular dynamics. See also the Volunteer Computing page.

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