linux/Documentation/networking/netfilter-sysctl.rst

.. SPDX-License-Identifier: GPL-2.0

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Netfilter Sysfs variables
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/proc/sys/net/netfilter/* Variables:
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nf_log_all_netns - BOOLEAN
	- 0 - disabled (default)
	- not 0 - enabled

	By default, only init_net namespace can log packets into kernel log
	with LOG target; this aims to prevent containers from flooding host
	kernel log. If enabled, this target also works in other network
	namespaces. This variable is only accessible from init_net.