Ciphers, MACs or KeX algorithms differ from "sshd -T" to what is provided by current crypto policy level

Solution Verified - Updated -


  • While comparing the output of sshd -T with the Ciphers, MACs or Key Exchange Algorithms from the current crypto policy configured, some inconsistencies can be noted:

        # sshd -T | grep -i ciphers
        # cat /etc/crypto-policies/back-ends/opensshserver.config | cut -f 2 -d \' | cut -f 1 -d " ",,aes256-ctr,aes256-cbc,,aes128-ctr,aes128-cbc
        # update-crypto-policies --show
  • aes192-ctr should not be available for the DEFAULT level.


  • Red Hat Enterprise Server (RHEL) 8
  • openssh-server

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content