With net.ipv6.conf.all.forwarding=1, Linux ignores router announcements
unless accept_ra is 2, so a server that gets its IPv6 route by SLAAC
(e.g. a Raspberry Pi at home) lost IPv6 once the route expired.
The sysctl file now also sets accept_ra=2 for the default and for every
network card and the IPv6 default-route interface, except where
accept_ra is 0. "update" rewrites the file, which fixes existing
installs. A new health check warns while the uplink still has
accept_ra=1.
The uplink check only reported the IPv4 default route. Split it into
IPv4 and IPv6 uplink rows, and add a public address row for each, read
from the uplink interface (private addresses are shown as behind NAT).
A config can now be handed over as a one-time link, valid for 1 h, 24 h or
7 days and protected by a PIN by default. Keys are made only when the link
is opened; the link works once and is revoked after 5 wrong PINs. Issuing a
new config offers the same choice, and the current config keeps working
until the link is used.
Remove the option to paste a client's public key, in the web UI, the API
and the iOS app.
Single Go binary that manages a WireGuard server based on pivpn's defaults:
- config.json as the single source of truth, reconciled to the kernel via
netlink, wgctrl and its own nftables table (NAT, forward, input)
- web interface (dashboard, peers, peer detail, add peer, server, settings)
and a JSON API for the future iOS app, with session and API-token auth
- client private keys are never stored; configs and QR codes shown once
- per-peer traffic statistics in stats.json, logs in GHOSTWIRE.jsonl
- HTTPS via Let's Encrypt, self-signed, certificate files or off
- self-managing: install, update (restores the old binary on failure),
uninstall and passwd subcommands; systemd unit generated by the binary
Tested end to end on Ubuntu 26.04 (kernel 7.0) at dev.redetzke.aero.
Claude-Session: https://claude.ai/code/session_01RAnLbyQZ5ZTA7KqwXP98nw
Daniel Redetzke