48 lines
1.2 KiB
Plaintext
48 lines
1.2 KiB
Plaintext
# Based on https://infosec.mozilla.org/guidelines/openssh and further cipher hardening
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Include /etc/ssh/sshd_config.d/*.conf
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HostKey /etc/ssh/ssh_host_ed25519_key
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HostKey /etc/ssh/ssh_host_rsa_key
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HostKey /etc/ssh/ssh_host_ecdsa_key
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KexAlgorithms curve25519-sha256@libssh.org,diffie-hellman-group-exchange-sha256,curve25519-sha256,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,sntrup761x25519-sha512@openssh.com
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Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
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HostKeyAlgorithms ssh-ed25519,rsa-sha2-512,rsa-sha2-256
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MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com
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LogLevel VERBOSE
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AuthenticationMethods publickey
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MaxAuthTries 3
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MaxSessions 6
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Compression no
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TCPKeepAlive no
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ClientAliveCountMax 2
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PubkeyAuthentication yes
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Banner /etc/login_banner
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PermitRootLogin no
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PasswordAuthentication no
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PermitEmptyPasswords no
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KbdInteractiveAuthentication no
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KerberosAuthentication no
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GSSAPIAuthentication no
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UsePAM yes
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AllowAgentForwarding no
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AllowTcpForwarding no
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X11Forwarding no
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PrintMotd no
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# Allow client to pass locale environment variables
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AcceptEnv LANG LC_*
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# override default of no subsystems
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Subsystem sftp /usr/lib/openssh/sftp-server
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