Reusable cnx.router.* module for the Topton 1U boxes replacing OPNsense:
PPPoE WAN (optionally VLAN-tagged, AIS: 10, secret credentials incl.
username), VLAN-filtering bridge, nftables NAT/firewall with MSS clamp,
Kea DHCP with per-VLAN lease time, Blocky DNS, DHCPv6-PD, CrowdSec with
the ZeroTier mesh whitelisted, optional Omada controller, ZFS disk.
Fleet baseline rides along: admins sops group is now derived for every
machine in clan.nix (secrets encrypt to it from the first vars generate)
and time sync is chrony everywhere instead of systemd-timesyncd.
web01 terminates TLS for grafana.cnx.network and proxies to Grafana on
control over the mesh. Caddy serves a *.cnx.network wildcard cert obtained
via ACME DNS-01, using a dedicated acme_web01 TSIG key scoped on ns1 to
_acme-challenge on the cnx.network zone only. Ports 80/443 are the only
public exposure (80 just redirects); admin and the backend ride ZeroTier.
Also reload Caddy on cert renewal for both web01 and mx1, since both
reference the cert via explicit tls file paths and would otherwise keep
serving a stale cert after a silent renewal.
kurogeek
Berwn