*No copyright* GNU General Public License, Version 3
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nagios-master/check_updates/check_apt-updates.sh
nagios-master/check_updates/check_arch_updates.sh
nagios-master/check_updates/check_yum_updates.sh

GNU General Public License v3.0 or later
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nagios-master/axfr-to-nagios/axfr-to-nagios.sh
nagios-master/check_crl/check_crl.py
nagios-master/check_dns_zone_sync/check_dns_zone_sync.sh
nagios-master/check_hsm_advanced/hsm.sh
nagios-master/check_ossec_agent/check_ossec_agent.sh

MIT License
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nagios-master/check_ocsp_hard/check_ocsp_hard.sh

Unknown or generated
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nagios-master/README.md
nagios-master/axfr-to-nagios/README.md
nagios-master/check_crl/README.md
nagios-master/check_hsm_advanced/README.md
nagios-master/check_ocsp_hard/README.md
nagios-master/check_ossec_agent/README.md