Marc S. Weidner
efa3a5d3aa
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Retrieve the DNSSEC status at the time of updating the repository. / build-dnssec-diagram (push) Successful in 30s
Signed-off-by: Marc S. Weidner <msw@coresecret.dev>
64 lines
2.3 KiB
Bash
64 lines
2.3 KiB
Bash
#!/bin/bash
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# SPDX-Version: 3.0
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# SPDX-CreationInfo: 2025-05-05; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-ExternalRef: GIT https://git.coresecret.dev/msw/CISS.debian.live.builder.git
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# SPDX-FileContributor: WEIDNER, Marc S.; Centurion Intelligence Consulting Agency
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# SPDX-FileCopyrightText: 2024–2025; WEIDNER, Marc S.; <msw@coresecret.dev>
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# SPDX-FileType: SOURCE
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# SPDX-License-Identifier: EUPL-1.2 OR LicenseRef-CCLA-1.0
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# SPDX-LicenseComment: This file is part of the CISS.debian.installer.secure framework.
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# SPDX-PackageName: CISS.debian.live.builder
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# SPDX-Security-Contact: security@coresecret.eu
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#######################################
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# SSH Hardening Ultra via TCP Wrapper
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# Globals:
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# ARY_HANDLER_JUMPHOST
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# VAR_WORKDIR
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# Arguments:
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# None
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#######################################
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hardening_ssh() {
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if ((${#ARY_HANDLER_JUMPHOST[@]} > 0)); then
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declare allowed=""
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cat << 'EOF' >| "${VAR_WORKDIR}/hosts.allow"
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# /etc/hosts.allow: list of hosts that are allowed to access the system.
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# See the manual pages hosts_access(5) and hosts_options(5).
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#
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# Example: ALL: LOCAL @some_netgroup
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# ALL: .foobar.edu EXCEPT terminalserver.foobar.edu
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#
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# If you're going to protect the portmapper use the name "rpcbind" for the
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# daemon name. See rpcbind(8) and rpc.mountd(8) for further information.
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#
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EOF
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allowed=$(echo "${ARY_HANDLER_JUMPHOST[*]}" | tr '\n' ' ')
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printf 'sshd: %s\n' "${allowed}" >> "${VAR_WORKDIR}/hosts.allow"
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cat << 'EOF' >| "${VAR_WORKDIR}/hosts.deny"
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# /etc/hosts.deny: list of hosts that are _not_ allowed to access the system.
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# See the manual pages hosts_access(5) and hosts_options(5).
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#
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# Example: ALL: some.host.name, .some.domain
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# ALL EXCEPT in.fingerd: other.host.name, .other.domain
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#
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# If you're going to protect the portmapper use the name "rpcbind" for the
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# daemon name. See rpcbind(8) and rpc.mountd(8) for further information.
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#
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# The PARANOID wildcard matches any host whose name does not match its
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# address.
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#
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# You may wish to enable this to ensure any programs that don't
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# validate looked-up hostnames still leave understandable logs. In past
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# versions of Debian, this has been the default.
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# ALL: PARANOID
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ALL: ALL
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EOF
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fi
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}
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# vim: number et ts=2 sw=2 sts=2 ai tw=128 ft=sh
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