==> fail2ban.log <==
2023-05-29 00:57:58,229 fail2ban.action         [1709]: ERROR   iptables -w -D INPUT -p tcp -m multiport --dports smtp,465,submission -j f2b-postfix
iptables -w -F f2b-postfix
iptables -w -X f2b-postfix -- stdout: b''
2023-05-29 00:57:58,230 fail2ban.action         [1709]: ERROR   iptables -w -D INPUT -p tcp -m multiport --dports smtp,465,submission -j f2b-postfix
iptables -w -F f2b-postfix
iptables -w -X f2b-postfix -- stderr: b"iptables v1.8.2 (nf_tables): Chain 'f2b-postfix' does not exist\nTry `iptables -h' or 'iptables --help' for more information.\niptables: No chain/target/match by that name.\n"
2023-05-29 00:57:58,231 fail2ban.action         [1709]: ERROR   iptables -w -D INPUT -p tcp -m multiport --dports smtp,465,submission -j f2b-postfix
iptables -w -F f2b-postfix
iptables -w -X f2b-postfix -- returned 1
2023-05-29 00:57:58,231 fail2ban.actions        [1709]: ERROR   Failed to stop jail 'postfix' action 'iptables-multiport': Error stopping action
2023-05-29 00:57:58,888 fail2ban.action         [1709]: ERROR   iptables -w -D INPUT -p tcp -m multiport --dports ssh -j f2b-sshd
iptables -w -F f2b-sshd
iptables -w -X f2b-sshd -- stdout: b''
2023-05-29 00:57:58,889 fail2ban.action         [1709]: ERROR   iptables -w -D INPUT -p tcp -m multiport --dports ssh -j f2b-sshd
iptables -w -F f2b-sshd
iptables -w -X f2b-sshd -- stderr: b"iptables v1.8.2 (nf_tables): Chain 'f2b-sshd' does not exist\nTry `iptables -h' or 'iptables --help' for more information.\niptables: No chain/target/match by that name.\n"
2023-05-29 00:57:58,889 fail2ban.action         [1709]: ERROR   iptables -w -D INPUT -p tcp -m multiport --dports ssh -j f2b-sshd
iptables -w -F f2b-sshd
iptables -w -X f2b-sshd -- returned 1
2023-05-29 00:57:58,890 fail2ban.actions        [1709]: ERROR   Failed to stop jail 'sshd' action 'iptables-multiport': Error stopping action