Run dae as a Daemon Service

Run dae as a systemd service to start it at boot. This requires a distribution that uses systemd as its service manager.

Prerequisites

Optional Geo Data Files

For traffic splitting, dae uses geoip.dat and geosite.dat.

sudo

sudo mkdir -p /usr/local/share/dae/
pushd /usr/local/share/dae/
sudo curl -L -o geoip.dat https://github.com/v2fly/geoip/releases/latest/download/geoip.dat
sudo curl -L -o geosite.dat https://github.com/v2fly/domain-list-community/releases/latest/download/dlc.dat
popd

root

mkdir -p /usr/local/share/dae/
pushd /usr/local/share/dae/
curl -L -o geoip.dat https://github.com/v2fly/geoip/releases/latest/download/geoip.dat
curl -L -o geosite.dat https://github.com/v2fly/domain-list-community/releases/latest/download/dlc.dat
popd

Configuration File

Download the sample configuration to the recommended directory, /etc/dae:

sudo

sudo mkdir -p /etc/dae
sudo curl -L -o /etc/dae/config.dae https://github.com/daeuniverse/dae/raw/main/example.dae
sudo chmod 600 /etc/dae/config.dae

root

mkdir -p /etc/dae
curl -L -o /etc/dae/config.dae https://github.com/daeuniverse/dae/raw/main/example.dae
chmod 600 /etc/dae/config.dae

Download Precompiled Binaries

Release binaries and nightly builds are available.

Nightly builds let you try new features. Proposed changes are usually submitted in PRs and built into cross-platform binaries by GitHub Actions. New features may contain bugs, so use these builds at your own risk. Testing them helps assess feature stability and identify bugs.

sudo

sudo chmod +x ./dae
sudo install -Dm755 dae /usr/bin/

root

chmod +x ./dae
install -Dm755 dae /usr/bin/

# helper
dae --help
# check version
dae version

Setup

sudo

# download the sample systemd.service
sudo curl -L -o /etc/systemd/system/dae.service https://github.com/daeuniverse/dae/raw/main/install/dae.service

root

# download the sample systemd.service
curl -L -o /etc/systemd/system/dae.service https://github.com/daeuniverse/dae/raw/main/install/dae.service

sudo

sudo systemctl daemon-reload
sudo systemctl enable dae --now
sudo systemctl status dae

root

systemctl daemon-reload
systemctl enable dae --now
systemctl status dae

Memory and Transparent Huge Pages

GOMEMLIMIT defaults to 90% of the process's cgroup memory ceiling. Only memory.max determines this ceiling. The bundled unit no longer sets MemoryHigh, which the runtime cannot use as a bound. An explicit GOMEMLIMIT environment variable always takes precedence.

When transparent huge pages are set to always, the kernel can increase dae's resident set without growth in the live Go heap. On every start, reload and rollback, dae calls prctl(PR_SET_THP_DISABLE) for its own process with the current disable_thp value. true passes 1 and opts the process out. The default, false, passes 0 and clears any per-process opt-out, including one inherited from the parent process, so dae follows the system-wide THP setting. Neither value changes /sys/kernel/mm/transparent_hugepage:

global {
  disable_thp: true
}

Check System Logs

sudo

sudo journalctl -xefu dae

root

journalctl -xefu dae

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Source: dae upstream · AGPL-3.0 license.