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XCCDF
Guide to the Secure Configuration of Ubuntu 22.04
Services
SSH Server
Configure OpenSSH Server if Necessary
Force frequent session key renegotiation
Force frequent session key renegotiation
An XCCDF Rule
Details
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Force frequent session key renegotiation
Medium Severity
The
RekeyLimit
parameter specifies how often the session key of the is renegotiated, both in terms of amount of data that may be transmitted and the time elapsed.
To decrease the default limits, add or correct the following line in
/etc/ssh/sshd_config.d/00-complianceascode-hardening.conf
:
RekeyLimit