Testing files against a checksum reference with an Icinga Plugin
You only need bash and the common GNU tools for checksums like:
sha1sumsha256sumsha512sum
Create some files to checksum:
mkdir /var/cache/app/importantfiles
cp verifyimportant.data /var/cache/app/importantfiles/
sha512sum /var/cache/app/importantfiles/* \
>/etc/icinga2/plugins/checksum-app.sha512sum
./check_checksum -m sha512 -c /etc/icinga2/plugins/checksum-app.sha512sum
./check_checksum -m sha512 -c /etc/icinga2/plugins/checksum-app.sha512sum \
-f /var/cache/app/importantfiles/verifyimportant.data
./check_checksum -m sha512 \
-C 3d16674888b7788569056486c0340f2855ed787b656216a542757e2a34255cfa7f6d790f76561599ad843803c61e0051120eb6454a0cfc712b2a2c356e245ac1 \
-f /var/cache/app/importantfiles/verifyimportant.data
./check_checksum -m sha512 \
-C f7e0ec38f23911a02aaefd46df416289bfcb647b037334d722f0d9c611b232a2ede47fa75aa1a2a8f332aee95210bed8f738a1e9a949a9a9449faf17c800cd60 \
-f https://github.com/NETWAYS/check_checksum/raw/master/test/fixture.txt
For full help see:
./check_checksum -h
Copyright (c) 2017 NETWAYS GmbH <info@netways.de>
2017 Markus Frosch <markus.frosch@netways.de>
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 2 of the License, or
(at your option) any later version.
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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, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.