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XCCDF
Guide to the Secure Configuration of Ubuntu 18.04
Services
SSH Server
Configure OpenSSH Server if Necessary
Enable Public Key Authentication
Enable Public Key Authentication
An XCCDF Rule
Details
Profiles
Prose
Enable Public Key Authentication
Medium Severity
Enable SSH login with public keys.
The default SSH configuration enables authentication based on public keys. The appropriate configuration is used if no value is set for
PubkeyAuthentication
.
To explicitly enable Public Key Authentication, add or correct the following
/etc/ssh/sshd_config
:
PubkeyAuthentication yes