How to disable specific MAC, Ciphers, KexAlgorithms, HostKeyAlgorithms and PubkeyAcceptedKeyTypes for sshd service in RHEL 9 ?

Solution Verified - Updated -


  • How to configure specific mac, ciphers, KexAlgorithms, hostkeyalgorithms and pubkeyacceptedkeytypes for sshd service in RHEL 9?
  • Security scanners regards specific algorithm and ciphers for ssh as vulnerable and hence there is requirement to modify these parameters in sshd_config to fix the vulnerability.


  • Red Hat Enterprise Linux 9
  • Red Hat Enterprise Linux 8.7 onwards
  • openssh-server
  • crypto-policies

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