Bug#872560: systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)

To: 872560@bugs.debian.org
Subject: Bug#872560: systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.)
From: Mathieu Malaterre <malat@debian.org>
Date: Mon, 22 Jan 2018 12:47:04 +0100
Message-id: <[🔎] CA+7wUsxv7VfLS4+q1FfGKaijZbhAPt4o+UxZxQoK+5Ep0BHqXA@mail.gmail.com>
Reply-to: Mathieu Malaterre <malat@debian.org>, 872560@bugs.debian.org
References: <150306569137.879.9800189347354073883.reportbug@pc>

Control: affects -1 src:systemd

For easier reference:

dmesg reveals:

[    8.324634] systemd[1]: File
/lib/systemd/system/systemd-journald.service:35 configures an IP
firewall (IPAddressDeny=any), but the local system does not s
upport BPF/cgroup based firewalling.
[    8.337180] systemd[1]: Proceeding WITHOUT firewalling in effect!
(This warning is only shown for the first loaded unit using IP
firewalling.)

This requires both CONFIG_CGROUP_BPF & CONFIG_BPF_SYSCALL

See:
https://github.com/systemd/systemd/issues/7188

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