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diff --git a/client.sh b/client.sh
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+#!/bin/bash
+# Install tailscale and register with a headscale server
+# Copy to a VM and run: sudo ./client.sh <server_ip> <auth_key>
+# Example: sudo ./client.sh 37.27.166.243 hskey-auth-xxxx
+# macOS CLI: echo 'alias tailscale="/Applications/Tailscale.app/Contents/MacOS/Tailscale"' >> ~/.zshrc
+set -e
+
+die()  { echo "Error: $1" >&2; exit 1; }
+info() { echo "  $1"; }
+
+[[ $EUID -eq 0 ]] || die "Must run as root"
+
+SERVER_IP="${1:?Usage: $0 <server_ip> <auth_key>}"
+AUTH_KEY="${2:?Usage: $0 <server_ip> <auth_key>}"
+LOGIN_SERVER="http://${SERVER_IP}:8080"
+
+echo "=== Installing Tailscale Client ==="
+echo "Server: $LOGIN_SERVER"
+echo ""
+
+# 1. Install tailscale
+if command -v tailscale &>/dev/null; then
+    info "Tailscale already installed: $(tailscale version | head -1)"
+else
+    info "Installing tailscale..."
+    dnf install -y tailscale
+fi
+
+# 2. Start tailscaled
+info "Starting tailscaled..."
+systemctl enable --now tailscaled
+
+# 3. Register with headscale
+info "Registering with headscale at $LOGIN_SERVER..."
+tailscale up --login-server "$LOGIN_SERVER" --authkey "$AUTH_KEY"
+
+# 4. Show status
+echo ""
+echo "=== Connected ==="
+tailscale status
+echo ""
+echo "To disconnect:  tailscale down"
+echo "To switch server: tailscale down && tailscale up --login-server http://<new_ip>:8080 --authkey <key> --force-reauth"
+echo "To remove:      tailscale down && systemctl disable --now tailscaled && dnf remove -y tailscale"