Getting started on a Linux Server

This tutorial will guide you through the steps needed to install and run ionscale on a Linux machine.

Prerequisites

A Linux machine with port 443 and 3478 open to ingress traffic.
A registered domain name.

Step 1. Configure DNS

Set up a A DNS records: ionscale.example.com (We are assuming that your domain name is example.com.)

!!! tip

You can use `dig` to make sure that DNS records are propagated:

``` bash
$ dig ionscale.example.com
```

Step 2. Set up ionscale on your Linux host

Prepare installation

Run the following commands to prepare the installation:

sudo mkdir -p /etc/ionscale
sudo mkdir -p /var/lib/ionscale

sudo useradd --system --no-create-home --shell /bin/false ionscale
sudo chown ionscale:ionscale /etc/ionscale
sudo chown ionscale:ionscale /var/lib/ionscale

Install ionscale

Run the following commands to install the ionscale binary on your Linux host:

sudo curl \
    -o "/usr/local/bin/ionscale" \
    -sfL "https://github.com/jsiebens/ionscale/releases/download/v0.15.0/ionscale_linux_amd64"

sudo chmod +x "/usr/local/bin/ionscale"

Configure ionscale

Generate a system admin key for ionscale using the ionscale genkey command and write it the an environment file:

sudo tee /etc/default/ionscale >/dev/null <<EOF
IONSCALE_KEYS_SYSTEM_ADMIN_KEY=$(ionscale genkey -n)
EOF

Generate a configuration file for ionscale with the following commands:

export IONSCALE_ACME_EMAIL=<your email>
export IONSCALE_DOMAIN=ionscale.example.com

sudo tee /etc/ionscale/config.yaml >/dev/null <<EOF
listen_addr: ":443"
public_addr: "${IONSCALE_DOMAIN}:443"
stun_public_addr: "${IONSCALE_DOMAIN}:3478"

tls:
  acme: true
  acme_email: "${IONSCALE_ACME_EMAIL}"

database:
  url: "/var/lib/ionscale/ionscale.db?_pragma=busy_timeout(5000)&_pragma=journal_mode(WAL)"

logging:
  level: info
EOF

Create a systemd service file for ionscale with the following commands:

sudo tee /etc/systemd/system/ionscale.service >/dev/null <<EOF
[Unit]
Description=ionscale - a Tailscale Controller server
Requires=network-online.target
After=network.target

[Service]
EnvironmentFile=/etc/default/ionscale
User=ionscale
Group=ionscale
ExecStart=/usr/local/bin/ionscale server --config /etc/ionscale/config.yaml
Restart=on-failure
RestartSec=10s
AmbientCapabilities=CAP_NET_BIND_SERVICE

[Install]
WantedBy=multi-user.target
EOF

Start ionscale

On your Linux machine, run the following commands to enable and start the ionscale daemon:

sudo systemctl daemon-reload
sudo systemctl enable ionscale
sudo systemctl start ionscale

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