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Centos8 openssh how to open dsa, I believe that many inexperienced people do not know what to do, so this article summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

Update 2019-12-19

A recent test found that when restarting centos8, it was found that the opensshserver.config would be reset, resulting in the invalidation of the previously added dss configuration, or making it impossible to log in. Now update the new configuration mode

Modify / etc/sysconfig/sshd, open the comment [root@kvm-centos8 ~] # more / etc/sysconfig/sshd # Configuration file for the sshd service.#The server keys are automatically generated if they are missing.#To change the automatic creation, adjust sshd.service options for#example using systemctl enable sshd-keygen@dsa.service to allow creation#of DSA key or systemctl mask sshd-keygen@rsa.service to disable RSA key#creation.#System-wide crypto policy:#To opt-out, uncomment the following lineCRYPTO_POLICY= modify / etc/ssh/sshd_config Add cipherCiphers aes128-ctr,aes192-ctr,aes256-ctr,aes128-cbc,3des-cbcPubkeyAcceptedKeyTypes=+ssh-dss

This older key can also log in to the server.

For the sake of safety, this is certainly not recommended.

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1. Modify / etc/ssh/sshd_config and add PubkeyAcceptedKeyTypes=+ssh-dss2 at the end of the configuration file. Modify / etc/crypto-policies/back-ends/opensshserver.config and add ssh-dss'3 at the end of the configuration file. Restart the ssh service systemctl restart sshd` after reading the above, have you mastered how centos8 openssh enables dsa? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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