Netboot.xyz
Netboot.xyz is a preconfigured iPXE bootloader that completely eliminates the need for large ISO files for a vast range of operating systems.
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ntopng
'ntopng' provides an easy to understand, intuitive interface with a world of options and features to monitor your network.
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Snitch
SaaS SSL monitoring and alerting. Snitch audits for revocation, expiration, changes to the certificate, known security vulnerabilities, and best practices. Snitch worries about your SSL/TLS certificate so you don't have to
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