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update algos for sshd hardening

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shibao 2021-11-26 17:02:10 -05:00
parent 8f29d1fe55
commit 8b2cf7c29a
1 changed files with 9 additions and 0 deletions
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9
etc/ssh/sshd_config
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@ -103,5 +103,14 @@ PrintMotd no # pam does that
#ChrootDirectory none #ChrootDirectory none
#VersionAddendum none #VersionAddendum none
# Ciphers and keying
# Restrict key exchange, cipher, and MAC algorithms, as per sshaudit.com
# hardening guide
KexAlgorithms curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group16-sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sha256
Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com,aes256-ctr,aes192-ctr,aes128-ctr
MACs hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com,umac-128-etm@openssh.com
HostKeyAlgorithms ssh-ed25519,ssh-ed25519-cert-v01@openssh.com
#RekeyLimit default none
# override default of no subsystems # override default of no subsystems
Subsystem sftp /usr/lib/ssh/sftp-server Subsystem sftp /usr/lib/ssh/sftp-server