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Networking / Security

Hardening network services with DNS

The Domain Name System, in addition to assigning IP addresses, lets you protect the network communication of servers in a domain. DNS offers further hardening of network protocols – in particular, SSH fingerprinting and CAA records.

By  Matthias Wübbeling
Updated / Published 4 min read
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  • Matthias Wübbeling

    Dr. Matthias Wübbeling is an IT security enthusiast, scientist, author, consultant, and speaker. He works on projects in network security, IT security awareness, and protection against account takeover and identity theft.