On 24/10/2023 19:04, Henggi wrote:
- iptables on server are cleared/open (firewalld or other firewall
frameworks are not used/installed).
Nowadays nft or iptables is not the only option to drop packets. Another
one is eBPF used e.g. by systemd.
I have the following link in my notes, but I have not tried the
suggested tool
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/configuring_and_managing_networking/capturing-network-packets_configuring-and-managing-networking
44.1. Using xdpdump to capture network packets including packets dropped
by XDP programs
