|
|
|
|
# Fail2Ban configuration file
|
|
|
|
|
#
|
|
|
|
|
# Author: Daniel Black
|
|
|
|
|
# Author: Cyril Jaquier
|
|
|
|
|
# Modified: Yaroslav O. Halchenko <debian@onerussian.com>
|
|
|
|
|
# made active on all ports from original iptables.conf
|
|
|
|
|
# Modified: Alexander Belykh <albel727@ngs.ru>
|
|
|
|
|
# adapted for nftables
|
|
|
|
|
#
|
|
|
|
|
# This is a included configuration file and includes the definitions for the nftables
|
|
|
|
|
# used in all nftables based actions by default.
|
|
|
|
|
#
|
|
|
|
|
# The user can override the defaults in nftables-common.local
|
|
|
|
|
|
|
|
|
|
[INCLUDES]
|
|
|
|
|
|
|
|
|
|
after = nftables-common.local
|
|
|
|
|
|
|
|
|
|
[Definition]
|
|
|
|
|
|
|
|
|
|
# Option: nftables_mode
|
|
|
|
|
# Notes.: additional expressions for nftables filter rule
|
|
|
|
|
# Values: nftables expressions
|
|
|
|
|
#
|
|
|
|
|
nftables_mode = <protocol> dport { <port> }
|
|
|
|
|
|
|
|
|
|
# Option: actionstart
|
|
|
|
|
# Notes.: command executed once at the start of Fail2Ban.
|
|
|
|
|
# Values: CMD
|
|
|
|
|
#
|
|
|
|
|
actionstart = <nftables> add set filter f2b-<name> { type ipv4_addr\; }
|
|
|
|
|
<nftables> insert rule filter <chain> %(nftables_mode)s ip saddr @f2b-<name> <blocktype>
|
|
|
|
|
|
|
|
|
|
# Option: actionstop
|
|
|
|
|
# Notes.: command executed once at the end of Fail2Ban
|
|
|
|
|
# Values: CMD
|
|
|
|
|
#
|
|
|
|
|
actionstop = HANDLE_ID=$(<nftables> --handle --numeric list chain filter <chain> | grep -m1 'ip saddr @f2b-<name> <blocktype> # handle' | grep -oe ' handle [0-9]*'); <nftables> delete rule filter <chain> $HANDLE_ID
|
|
|
|
|
<nftables> delete set filter f2b-<name>
|
|
|
|
|
|
|
|
|
|
# Option: actioncheck
|
|
|
|
|
# Notes.: command executed once before each actionban command
|
|
|
|
|
# Values: CMD
|
|
|
|
|
#
|
|
|
|
|
actioncheck = <nftables> list chain filter <chain> | grep -q '@f2b-<name>[ \t]'
|
|
|
|
|
|
|
|
|
|
# Option: actionban
|
|
|
|
|
# Notes.: command executed when banning an IP. Take care that the
|
|
|
|
|
# command is executed with Fail2Ban user rights.
|
|
|
|
|
# Tags: See jail.conf(5) man page
|
|
|
|
|
# Values: CMD
|
|
|
|
|
#
|
|
|
|
|
actionban = <nftables> add element filter f2b-<name> { <ip> }
|
|
|
|
|
|
|
|
|
|
# Option: actionunban
|
|
|
|
|
# Notes.: command executed when unbanning an IP. Take care that the
|
|
|
|
|
# command is executed with Fail2Ban user rights.
|
|
|
|
|
# Tags: See jail.conf(5) man page
|
|
|
|
|
# Values: CMD
|
|
|
|
|
#
|
|
|
|
|
actionunban = <nftables> delete element filter f2b-<name> { <ip> }
|
|
|
|
|
|
|
|
|
|
[Init]
|
|
|
|
|
|
|
|
|
|
# Option: chain
|
|
|
|
|
# Notes specifies the nftables chain to which the Fail2Ban rules should be
|
|
|
|
|
# added
|
|
|
|
|
# Values: STRING Default: input
|
|
|
|
|
chain = input
|
|
|
|
|
|
|
|
|
|
# Default name of the filtering set
|
|
|
|
|
#
|
|
|
|
|
name = default
|
|
|
|
|
|
|
|
|
|
# Option: port
|
|
|
|
|
# Notes.: specifies port to monitor
|
|
|
|
|
# Values: [ NUM | STRING ] Default:
|
|
|
|
|
#
|
|
|
|
|
port = ssh
|
|
|
|
|
|
|
|
|
|
# Option: protocol
|
|
|
|
|
# Notes.: internally used by config reader for interpolations.
|
|
|
|
|
# Values: [ tcp | udp ] Default: tcp
|
|
|
|
|
#
|
|
|
|
|
protocol = tcp
|
|
|
|
|
|
|
|
|
|
# Option: blocktype
|
|
|
|
|
# Note: This is what the action does with rules. This can be any jump target
|
|
|
|
|
# as per the nftables man page (section 8). Common values are drop
|
|
|
|
|
# reject, reject with icmp type host-unreachable
|
|
|
|
|
# Values: STRING
|
|
|
|
|
blocktype = reject
|
|
|
|
|
|
|
|
|
|
# Option: nftables
|
|
|
|
|
# Notes.: Actual command to be executed, including common to all calls options
|
|
|
|
|
# Values: STRING
|
|
|
|
|
nftables = nft
|
