Displaying 1 result from an estimated 1 matches for "rule_insert".
2018 Nov 16
2
[Bug 1298] New: Issue with REJECT in custom chains
...m facing right now is with active and large DoS
attacks email spam attacks. When fail2ban attempts to add the firewall
blocks, such as;
iptables -w -I f2b-postfix-sasl 1 -s 80.82.70.189 \
-j REJECT --reject-with icmp-port-unreachable
iptables produces an error:
iptables v1.8.2 (nf_tables): RULE_INSERT failed (Invalid argument):
rule in chain f2b-postfix-sasl
the system log matching that iptables update attempt states:
x_tables: ip_tables: REJECT target: used from hooks
FORWARD/OUTPUT/POSTROUTING, but only usable from INPUT/FORWARD/OUTPUT
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