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XCCDF
Guide to the Secure Configuration of Oracle Linux 8
Services
SSH Server
Configure OpenSSH Server if Necessary
Disable SSH Support for User Known Hosts
Disable SSH Support for User Known Hosts
An XCCDF Rule
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Disable SSH Support for User Known Hosts
Medium Severity
SSH can allow system users to connect to systems if a cache of the remote systems public keys is available. This should be disabled.
To ensure this behavior is disabled, add or correct the following line in
/etc/ssh/sshd_config
:
IgnoreUserKnownHosts yes