## Cross-Compiling

```
cargo install cross
cross build --target armv7-unknown-linux-musleabihf --release
```

## Installation

1. Install necessary dependencies with `opkg update && opkg install ipset iptables-mod-extra logrotate`
2. Copy files, copy cross-compiled `target/armv7-unknown-linux-musleabihf/dns-firewall` binary to `/usr/bin/dns-firewall`
3. Update at least `chain` parameter in `/etc/init.d/dns-firewall` (other parameters as necessary)
4. Re-configure firewall: Ensure to reject all traffic by default from the intended zone, add rule to allow inbound dns-firewall traffic (and maybe DHCP)
5. Exclude intended interface(s) from dnsmasq
6. `/etc/init.d/cron restart && /etc/init.d/dns-firewall start`
7. Enable dns-firewall service