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@klausbrunner
Last active April 13, 2020 13:42
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Minimal, secure sshd_config (OpenSSH 8.2)
# This is the sshd server system-wide configuration file. See
# sshd_config(5) for more information.
HostKey /etc/ssh/ssh_host_ed25519_key
HostKey /etc/ssh/ssh_host_rsa_key
ChallengeResponseAuthentication no
UsePAM yes
# Allow client to pass locale environment variables
AcceptEnv LANG LC_*
Subsystem sftp /usr/lib/openssh/sftp-server
KexAlgorithms curve25519-sha256@libssh.org,curve25519-sha256,diffie-hellman-group-exchange-sha256,diffie-hellman-group16-sha512,diffie-hellman-group14-sha256,diffie-hellman-group18-sha512
Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com
HostKeyAlgorithms ssh-ed25519,rsa-sha2-512,rsa-sha2-256
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