fff-firewall: remove obsolete rules #186

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jkimmel wants to merge 1 commits from jkimmel/firmware:fff-firewall into master

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Author SHA1 Message Date
Johannes Kimmel bd9477a775 fff-firewall: remove obsolete rules
20-clamp-mss:

Clamping is done in other parts of the network and to a very low static
value. This rules is very likely doing nothing at the moment.

20-filter-ssh:

These rules make use of the conntrack module to ratelimit incoming
connections. Using conntrack comes with a performance penalty for all
traffic. As an alternative, dropbear could be run behind an inetd(-like)
service that does the ratelimit, should removing this rule result in an
actual attack vector.

Removing both rules would enable us to unload the conntrack module all
together, potentially improving overall performance.

Fixes #183

Signed-off-by: Johannes Kimmel <fff@bareminimum.eu>
2021-12-21 08:17:12 +01:00