Merging upstream version 20210904.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

24 files changed, 494 insertions, 10 deletions

diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 8fe2fd7..9aeb844 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,6 +1,19 @@
+2021-09-04	Daniel Baumann <daniel.baumann@open-infrastructure.net>
+
+	* Releasing version 20210904.
+
+	[ Daniel Baumann ]
+	* Adding dehydrated TODO file.
+	* Adding knot tools.
+	* Reading configuration files in dehydrated-nsupdate for future tsig support.
+	* Using less confusing variable name for the txt record to update in dehydrated-nsupdate.
+	* Improving message when update txt records in dehydrated-nsupdate.
+	* Harmonizing copyright headers.
+	* Correcting typo in date of previous changelog entry.
+
 2021-08-28	Daniel Baumann <daniel.baumann@open-infrastructure.net>
 
-	* Releasing version 20210821.
+	* Releasing version 20210828.
 
 	[ Daniel Baumann ]
 	* Moving apache files to subdirectory.
diff --git a/VERSION.txt b/VERSION.txt
index 31d17e8..fd5abf1 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-20210828
+20210904
diff --git a/apache/Makefile b/apache/Makefile
index 90758cf..3977399 100644
--- a/apache/Makefile
+++ b/apache/Makefile
@@ -1,4 +1,6 @@
-# Copyright (C) 2014-2019 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
 #
 # SPDX-License-Identifier: GPL-3.0+
 #
@@ -13,7 +15,7 @@
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 SHELL := sh -e
 
diff --git a/dehydrated/Makefile b/dehydrated/Makefile
index 0c9da96..5a6239d 100644
--- a/dehydrated/Makefile
+++ b/dehydrated/Makefile
@@ -50,7 +50,7 @@ test:
 	then \
 		for SCRIPT in $(SCRIPTS); \
 		do \
-			shellcheck -e SC2039 $${SCRIPT}; \
+			shellcheck -e SC1090 -e SC2039 $${SCRIPT}; \
 			echo -n "."; \
 		done; \
 	else \
diff --git a/dehydrated/TODO b/dehydrated/TODO
new file mode 100644
index 0000000..0025e8a
--- /dev/null
+++ b/dehydrated/TODO
@@ -0,0 +1,4 @@
+TODO
+====
+
+  * add hmac/tsig support
diff --git a/dehydrated/bin/dehydrated-cron b/dehydrated/bin/dehydrated-cron
index 09e1a44..8264761 100755
--- a/dehydrated/bin/dehydrated-cron
+++ b/dehydrated/bin/dehydrated-cron
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 mkdir -p /var/log/dehydrated
diff --git a/dehydrated/bin/dehydrated-hook.d b/dehydrated/bin/dehydrated-hook.d
index 2d9a5af..4e7b7ff 100755
--- a/dehydrated/bin/dehydrated-hook.d
+++ b/dehydrated/bin/dehydrated-hook.d
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 HOOKS="/etc/dehydrated/hook.d"
diff --git a/dehydrated/bin/dehydrated-nsupdate b/dehydrated/bin/dehydrated-nsupdate
index f901d2e..ec8cf7f 100755
--- a/dehydrated/bin/dehydrated-nsupdate
+++ b/dehydrated/bin/dehydrated-nsupdate
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 HOOK="$(basename "${0}")"
@@ -50,18 +69,27 @@ else
 	exit 1
 fi
 
+# config
+for FILE in /etc/default/dehydrated-nsupdate /etc/default/dehydrated-nsupdate.d/*
+do
+	if [ -e "${FILE}" ]
+	then
+		. "${FILE}"
+	fi
+done
+
 # find txt record to update
 CNAME="$(${DIG} "_acme-challenge.${DOMAIN}" 2>&1 | awk '/CNAME/ { print $5 }' | tail -n1)"
 
 if [ -n "${CNAME}" ]
 then
-	UPDATE_DOMAIN="${CNAME}"
+	TXT_RECORD="${CNAME}"
 else
-	UPDATE_DOMAIN="_acme-challenge.${DOMAIN}"
+	TXT_RECORD="_acme-challenge.${DOMAIN}"
 fi
 
 # find nameservers to update
-ZONE="${UPDATE_DOMAIN}"
+ZONE="${TXT_RECORD}"
 
 while true
 do
@@ -80,12 +108,12 @@ NAMESERVERS="$(${DIG} +short NS "${ZONE}")"
 # update nameservers
 for NAMESERVER in ${NAMESERVERS}
 do
-	echo -n " + Adding TXT record (${UPDATE_DOMAIN})..."
+	echo -n "   + sending '${HOOK_ACTION}' for ${TXT_RECORD} to ${NAMESERVER}..."
 
 echo "server ${NAMESERVER}
 zone ${ZONE}
 ttl 0
-update ${HOOK_ACTION} ${UPDATE_DOMAIN} 0 TXT ${TOKEN_VALUE}
+update ${HOOK_ACTION} ${TXT_RECORD} 0 TXT ${TOKEN_VALUE}
 send" | "${NSUPDATE}"
 
 	echo " done."
diff --git a/dehydrated/share/hooks/deploy_cert.fullchain-privkey b/dehydrated/share/hooks/deploy_cert.fullchain-privkey
index 5457036..95f0aa7 100755
--- a/dehydrated/share/hooks/deploy_cert.fullchain-privkey
+++ b/dehydrated/share/hooks/deploy_cert.fullchain-privkey
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 DIRECTORY="$(dirname "${FULLCHAINFILE}")"
diff --git a/dehydrated/share/hooks/deploy_ocsp.fullchain-privkey b/dehydrated/share/hooks/deploy_ocsp.fullchain-privkey
index e68716b..70af6dc 100755
--- a/dehydrated/share/hooks/deploy_ocsp.fullchain-privkey
+++ b/dehydrated/share/hooks/deploy_ocsp.fullchain-privkey
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 FILE="$(readlink "${OCSPFILE}")"
diff --git a/dehydrated/share/hooks/exit_hook.fix-permissions b/dehydrated/share/hooks/exit_hook.fix-permissions
index c5bb646..d19c8e6 100755
--- a/dehydrated/share/hooks/exit_hook.fix-permissions
+++ b/dehydrated/share/hooks/exit_hook.fix-permissions
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 echo " + Fixing permissions..."
diff --git a/dehydrated/share/hooks/exit_hook.service-reload b/dehydrated/share/hooks/exit_hook.service-reload
index 2da8c1b..f7bc8e4 100755
--- a/dehydrated/share/hooks/exit_hook.service-reload
+++ b/dehydrated/share/hooks/exit_hook.service-reload
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 echo " + Reloading services..."
diff --git a/git/bin/git-checkout-branches b/git/bin/git-checkout-branches
index 5b1ef15..f1aa862 100755
--- a/git/bin/git-checkout-branches
+++ b/git/bin/git-checkout-branches
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 CURRENT_BRANCH="$(git branch --show-current)"
diff --git a/git/bin/git-hook.d b/git/bin/git-hook.d
index 1c0ab10..b6928d9 100755
--- a/git/bin/git-hook.d
+++ b/git/bin/git-hook.d
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 HOOKS="${0}.d"
diff --git a/git/bin/git-remove-origin-branches b/git/bin/git-remove-origin-branches
index f2b580f..9ae5f30 100755
--- a/git/bin/git-remove-origin-branches
+++ b/git/bin/git-remove-origin-branches
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 BRANCHES="${*}"
diff --git a/git/bin/git-remove-origin-tags b/git/bin/git-remove-origin-tags
index bcbf192..5d99ada 100755
--- a/git/bin/git-remove-origin-tags
+++ b/git/bin/git-remove-origin-tags
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 TAGS="${*}"
diff --git a/git/bin/git-repo-repack b/git/bin/git-repo-repack
index d9d7357..0d3c106 100755
--- a/git/bin/git-repo-repack
+++ b/git/bin/git-repo-repack
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 case "${1}" in
diff --git a/git/share/hooks/post-update.d/cgit-agefile b/git/share/hooks/post-update.d/cgit-agefile
index cf95745..f036215 100755
--- a/git/share/hooks/post-update.d/cgit-agefile
+++ b/git/share/hooks/post-update.d/cgit-agefile
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 agefile="$(git rev-parse --git-dir)"/info/web/last-modified
diff --git a/git/share/hooks/post-update.d/git-update-server-info b/git/share/hooks/post-update.d/git-update-server-info
index fba9845..9a055f1 100755
--- a/git/share/hooks/post-update.d/git-update-server-info
+++ b/git/share/hooks/post-update.d/git-update-server-info
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 git update-server-info
diff --git a/git/share/hooks/post-update.d/irker-notification b/git/share/hooks/post-update.d/irker-notification
index 212cc6c..3daf5d0 100755
--- a/git/share/hooks/post-update.d/irker-notification
+++ b/git/share/hooks/post-update.d/irker-notification
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 if [ -z "$(git config --get irker.project)" ]
diff --git a/irker/bin/irkerhook-debian b/irker/bin/irkerhook-debian
index bd9e160..9e40ebf 100755
--- a/irker/bin/irkerhook-debian
+++ b/irker/bin/irkerhook-debian
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 MESSAGE="${*}"
diff --git a/knot-resolver/bin/kresd-cache-clear b/knot-resolver/bin/kresd-cache-clear
index 5eadee0..2cd54a6 100755
--- a/knot-resolver/bin/kresd-cache-clear
+++ b/knot-resolver/bin/kresd-cache-clear
@@ -1,5 +1,24 @@
 #!/bin/sh
 
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
 set -e
 
 HOSTS="${*}"
diff --git a/knot/Makefile b/knot/Makefile
new file mode 100644
index 0000000..3a2e4b9
--- /dev/null
+++ b/knot/Makefile
@@ -0,0 +1,80 @@
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+SHELL := sh -e
+
+SCRIPTS = bin/*
+
+all: build
+
+test:
+	@echo -n "Checking for syntax errors with sh... "
+	@for SCRIPT in $(SCRIPTS); \
+	do \
+		sh -n $${SCRIPT}; \
+		echo -n "."; \
+	done
+	@echo " done."
+
+	@echo -n "Checking for bashisms... "
+	@if [ -x /usr/bin/checkbashisms ]; \
+	then \
+		for SCRIPT in $(SCRIPTS); \
+		do \
+			checkbashisms -f -x $${SCRIPT}; \
+			echo -n "."; \
+		done; \
+	else \
+		echo "Note: devscripts not installed, skipping checkbashisms."; \
+	fi
+	@echo " done."
+
+	@echo -n "Checking with shellcheck... "
+	@if [ -x /usr/bin/shellcheck ]; \
+	then \
+		for SCRIPT in $(SCRIPTS); \
+		do \
+			shellcheck -e SC2039 $${SCRIPT}; \
+			echo -n "."; \
+		done; \
+	else \
+		echo "Note: shellcheck not installed, skipping shellcheck."; \
+	fi
+	@echo " done."
+
+build:
+
+install: build
+	mkdir -p $(DESTDIR)/usr/bin
+	cp -r bin/* $(DESTDIR)/usr/bin
+
+uninstall:
+	for FILE in bin/*; \
+	do \
+		rm -f $(DESTDIR)/usr/bin/$$(basename $${FILE}); \
+	done
+	rmdir --ignore-fail-on-non-empty --parents $(DESTDIR)/usr/bin || true
+
+	rmdir --ignore-fail-on-non-empty --parents $(DESTDIR) || true
+
+clean:
+
+distclean:
+
+reinstall: uninstall install
diff --git a/knot/bin/knot-zone-reset b/knot/bin/knot-zone-reset
new file mode 100755
index 0000000..cc310b0
--- /dev/null
+++ b/knot/bin/knot-zone-reset
@@ -0,0 +1,53 @@
+#!/bin/sh
+
+# Open Infrastructure: service-tools
+
+# Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+#
+# SPDX-License-Identifier: GPL-3.0+
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+set -e
+
+HOSTS="${*}"
+
+if [ -z "${HOSTS}" ]
+then
+	echo "Usage: ${0} localhost|[HOST1 HOST2 ...]" >&2
+	exit 1
+fi
+
+for HOST in ${HOSTS}
+do
+	case "${HOST}" in
+		localhost)
+			echo -n "Flushing zone memory..."
+
+			service knot stop
+			rm -rf /var/lib/knot/timers/*.mdb
+			service knot start
+
+			echo " done."
+			;;
+
+		*)
+			echo -n "Flushing ${HOST} zone memory..."
+
+			ssh "${HOST}" "sudo service knot stop && rm -rf /var/lib/knot/timers/*.mdb && sudo service knot start"
+
+			echo " done."
+			;;
+	esac
+done