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XCCDF
Guide to the Secure Configuration of Ubuntu 18.04
Services
SSH Server
Configure OpenSSH Server if Necessary
Disable PubkeyAuthentication Authentication
Disable PubkeyAuthentication Authentication
An XCCDF Rule
Details
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Disable PubkeyAuthentication Authentication
Medium Severity
Unless needed, SSH should not permit extraneous or unnecessary authentication mechanisms. To disable PubkeyAuthentication authentication, add or correct the following line in
/etc/ssh/sshd_config
:
PubkeyAuthentication no