`nf_conntrack_tcp_loose=0` + `conntrack -F`? - https://stackoverflow.com/a/46811792/1204976 - https://serverfault.com/questions/1128226/drop-all-the-tcp-connections-established-related-in-ubuntu - https://unix.stackexchange.com/a/398192/104537 - https://www.reddit.com/r/sysadmin/comments/qf7vsf/disabling_nf_conntrack_tcp_loose_on_linux/ -
