- Undo is staged like any edit: in review mode the web UI's Undo, and hc
history undo with -C or HOUSECARL_CHANGESET, add a revert operation
that checks, when replayed, that nothing it touches changed since;
applied, History links the entries. Imports and takeovers still can't
be staged.
- The rules page sums up a chain's built-ins in one line; a window lists
them with what they do and their hits, and switches them.
- Warnings about the machine (dashboard, hc status): nftables.service
enabled (it loads /etc/nftables.conf at boot and flushes every table
when stopped), and the imported table still in force beside
Housecarl's. The docs say to disable nftables.service but not stop it.
- A raw rule with other fields set is refused (raw_conflict) instead of
silently ignoring them; the rule dialog's nftables section hides what
it replaces, and the importer's raw rules carry only their text.
- A dynamic set with configured entries is refused
(set_dynamic_entries): they were silently ignored. The set dialog
shows entries or the entry timeout, as fits.
- The rule dialog's chain choices are just the chains' names.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Changesets, as in Jarl: configuration changes are operations that can be
staged in a changeset, checked as they are added (validation and nft -c),
reviewed with the diff of the ruleset, and applied together as one
history entry, then on probation like any change made over the network.
The web UI collects edits for review by default (pending rows, a bar with
Review and Apply now, a Changes page, a switch for live edits); hc stages
with -C ID or HOUSECARL_CHANGESET (checked like JARL_CHANGESET) and has
hc changeset create/list/show/diff/apply/discard/remove. Undo, import and
takeover refuse a changeset. --dry-run shows the ruleset's diff.
Bandwidth and quotas: rate limits in bytes, per source or destination;
quotas per rule or per address that reset daily, weekly, monthly on a
day, or by hand, with their usage carried across reloads, saved for
reboots, shown by hc quotas and on the rules page, and reset with hc rule
reset-quota. Rules that count traffic are checked before established
connections are accepted (so they see every packet) and can't accept.
Per-address limits group IPv6 by /64 by default (--group-v4/-v6).
Per-source rate meters use update. The importer turns meters, byte rates
and quotas into these fields.
The examples in the web UI, hc's help and the docs use documentation
addresses and generic names instead of the maintainer's network.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A DNAT map (named or anonymous) becomes one port forward per element,
named after the map; a verdict map becomes one rule per element, in
place, with jumps inlined. A lookup matches one element at most, so the
expanded rules do the same. A named map that can't be expanded (keyed by
several fields) is left out with a note instead of a raw rule naming it,
which nftables would refuse. Test fixture made with nft 1.1.3.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Zones, address sets (IPv4 and IPv6 mixed, dynamic sets with timeouts) and
services, ordered rules in the early, input, forward and output chains,
port forwards with hairpin NAT and IPv6 pinholes, source NAT, redirects,
and switchable built-ins (loopback, conntrack, ICMPv6, antispoofing, MSS
clamping, DHCPv6 client, flowtable). Every change is validated, checked
with nft -c and applied in one transaction to Housecarl's own table,
inet housecarl; changes made over the network roll back unless
confirmed, and the confirmed ruleset is loaded at boot by
housecarl-ruleset.service. An empty configuration applies nothing.
Also: hit counters and the drop log (nflog), 'hc import' of an existing
nftables ruleset and 'hc takeover', the hc CLI, the REST API and the web
UI, users, scoped tokens (sets:write:NAME), the audit log, the web UI's
certificate through Jarl, Debian packages, docs, unit tests with real
nft 1.1.3, and an e2e test with real traffic (71 checks).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
abrown38andClaude Opus 5.5