Am Fri, 21 Jun 2024 16:17:01 -0600 schrieb R C <cjvijf@gmail.com>:I used iperf3, and when not under load, cpu nor bandwidth, it shows a 10% bandwidth loss (over IB)Can you track down the reason for that? Is that already related to the firewall (nftables, maybe invoked by firewalld) or to anything other?
yes the differences in performance show up when I run iperf3
with the firewall disabled/stopped versus the firewall running
(on a side note, what would be more 'expensive' for the firewall
to implement, a port opened with "firewall-cmd --add-port=22/tcp" or have a rich rule
that does the same thing for a set of source IPs?)
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