Hi,
I use shorewall version 5.2.3.4 with Ubuntu 21.04 with the three network
interfaces:
WAN-enp3s0,
LAN-enp2s0,
WLAN-wlp4s0
I think that after update some _Ubuntu _packets one of my open port
6535 is closed.
See my shorewall rules:
https://paste.ubuntu.com/p/76bYZFs2FW/
It seems like port 6535 is open for tcp6 but no for tcp4 (as it was before)
https://paste.ubuntu.com/p/dvJCkbwcYy/
See shorewall_dump.txt:
https://paste.ubuntu.com/p/sFxwZbBhBH/
I didn't changed anything in the shorewall configuration. The port 6535
was open but I assume after ubuntu update is closed.
Any tips how to open it again are appreciated.
Regards,
Bern
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