nixos/doc: improve release notes for iptables-nft and systemd with nftables backend

This change probably wasn't documented sufficiently in the release
notes, neither the fact systemd stopped using iptables on its own in
case of nf_tables support.

Fixes #156041.
This commit is contained in:
Florian Klink 2022-02-22 23:14:17 +01:00
parent 99c18ca44d
commit 753a43caf0
2 changed files with 29 additions and 3 deletions

View File

@ -26,8 +26,26 @@
</listitem>
<listitem>
<para>
<literal>iptables</literal> now uses
<literal>nf_tables</literal> backend.
<literal>iptables</literal> is now using
<literal>nf_tables</literal> under the hood, by using
<literal>iptables-nft</literal>, similar to
<link xlink:href="https://wiki.debian.org/nftables#Current_status">Debian</link>
and
<link xlink:href="https://fedoraproject.org/wiki/Changes/iptables-nft-default">Fedora</link>.
This means, <literal>ip[6]tables</literal>,
<literal>arptables</literal> and <literal>ebtables</literal>
commands will actually show rules from some specific tables in
the <literal>nf_tables</literal> kernel subsystem.
</para>
</listitem>
<listitem>
<para>
systemd got an <literal>nftables</literal> backend, and
configures (networkd) rules in their own
<literal>io.systemd.*</literal> tables. Check
<literal>nft list ruleset</literal> to see these rules, not
<literal>iptables-save</literal> (which only shows
<literal>iptables</literal>-created rules.
</para>
</listitem>
<listitem>

View File

@ -8,7 +8,15 @@ In addition to numerous new and upgraded packages, this release has the followin
- Nix has been updated to version 2.4, reference its [release notes](https://discourse.nixos.org/t/nix-2-4-released/15822) for more information on what has changed. The previous version of Nix, 2.3.16, remains available for the time being in the `nix_2_3` package.
- `iptables` now uses `nf_tables` backend.
- `iptables` is now using `nf_tables` under the hood, by using `iptables-nft`,
similar to [Debian](https://wiki.debian.org/nftables#Current_status) and
[Fedora](https://fedoraproject.org/wiki/Changes/iptables-nft-default).
This means, `ip[6]tables`, `arptables` and `ebtables` commands will actually
show rules from some specific tables in the `nf_tables` kernel subsystem.
- systemd got an `nftables` backend, and configures (networkd) rules in their
own `io.systemd.*` tables. Check `nft list ruleset` to see these rules, not
`iptables-save` (which only shows `iptables`-created rules.
- PHP now defaults to PHP 8.0, updated from 7.4.