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V8.13.288.2025.10.24
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Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
This commit is contained in:
Marc S. Weidner
2025-10-24 18:53:43 +01:00
parent 7a71c4e27a
commit c19f66319d
4 changed files with 19 additions and 55 deletions
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19
config/hooks/live/0001_initramfs_modules.chroot
View File

@@ -130,27 +130,26 @@ squashfs
overlay
#### nftables ------------------------------------------------------------------------------------------------------------------
#nf_log_common # built-in
#nft_counter # built-in
#nft_icmp # built-in
#nft_icmpv6 # built-in
#nft_meta # built-in
#nft_set_hash # built-in
#nft_set_rbtree # built-in
#nft_tcp # built-in
#nft_udp # built-in
nf_conntrack
nf_log_common
nf_nat
nf_reject_ipv4
nf_reject_ipv6
nf_tables
nft_counter
nft_ct
nft_icmp
nft_icmpv6
nft_limit
nft_log
nft_masq
nft_meta
nft_nat
nft_reject_inet
nft_set_hash
nft_set_rbtree
nft_tcp
nft_udp
nft_reject_inet
nfnetlink
nfnetlink_log

39
config/hooks/live/9950_fail2ban_hardening.chroot → config/hooks/live/9950_hardening_fail2ban.chroot
View File

@@ -49,7 +49,7 @@ ignoreip = 127.0.0.1/8 ::1/128 fe80::/10 ff00::/8 ::/128 IGNORE_IP_
[recidive]
enabled = true
banaction = %(banaction_allports)s
banaction = nftables[type=custom, family=inet, table=f2b-table, chain=f2b-chain, blocktype=drop]
bantime = 8d
bantime.increment = true
bantime.factor = 1
@@ -105,24 +105,9 @@ protocol = tcp
# There is no necessity to ping our servers excessively. Any client pinging us more than 1 times will be blocked.
#
[icmp]
enabled = true
banaction = %(banaction_allports)s
bantime = 1h
bantime.increment = true
bantime.factor = 1
bantime.maxtime = 16d
bantime.multipliers = 1 2 4 8 16 32 64 128 256 384
bantime.overalljails = true
bantime.rndtime = 877s
filter = ciss-icmp
findtime = 16m
logpath = /var/log/ufw.log
maxretry = 1
[ufw]
enabled = true
banaction = %(banaction_allports)s
banaction = nftables[type=custom, family=inet, table=f2b-table, chain=f2b-chain, blocktype=drop]
bantime = 1h
bantime.increment = true
bantime.factor = 1
@@ -138,26 +123,6 @@ maxretry = 1
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
EOF
cat << 'EOF' >| /etc/fail2ban/filter.d/ciss-icmp.conf
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-10-18; WEIDNER, Marc S.; <cendev@coresecret.eu>
# SPDX-ExternalRef: GIT https://cendev.eu/marc.weidner/CISS.2025.debian.live.builder.git
# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
# SPDX-FileCopyrightText: 2024-2025; WEIDNER, Marc S.; <cendev@coresecret.eu>
# SPDX-FileType: SOURCE
# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
# SPDX-PackageName: CISS.debian.live.builder
# SPDX-Security-Contact: security@coresecret.eu
[Definition]
# Generic ICMP/ICMPv6 blocks
failregex = ^.*UFW (?:BLOCK|REJECT).*?\bSRC=<HOST>\b.*?\bPROTO=ICMP\b.*$
^.*UFW (?:BLOCK|REJECT).*?\bSRC=<HOST>\b.*?\bPROTO=ICMPv6\b.*$
# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=conf
EOF
cat << EOF >| /etc/fail2ban/filter.d/ciss-ufw.conf
# SPDX-Version: 3.0
# SPDX-CreationInfo: 2025-10-18; WEIDNER, Marc S.; <cendev@coresecret.eu>