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XCCDF
Guide to the Secure Configuration of Ubuntu 20.04
Services
SSH Server
Configure OpenSSH Server if Necessary
Disable Compression Or Set Compression to delayed
Disable Compression Or Set Compression to delayed
An XCCDF Rule
Details
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Disable Compression Or Set Compression to delayed
Medium Severity
Compression is useful for slow network connections over long distances but can cause performance issues on local LANs. If use of compression is required, it should be enabled only after a user has authenticated; otherwise, it should be disabled. To disable compression or delay compression until after a user has successfully authenticated, add or correct the following line in the
/etc/ssh/sshd_config
file:
Compression