More sshd hardening
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@ -11,7 +11,7 @@ Include /etc/ssh/sshd_config.d/*.conf
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# / / -_) __/ |/|/ / _ \/ __/ '_// / _ \/ _ `/
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#/_/|_/\__/\__/|__,__/\___/_/ /_/\_\/_/_//_/\_, /
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# /___/
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#
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Port 69
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#AddressFamily any
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#ListenAddress 0.0.0.0
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@ -22,7 +22,7 @@ Port 69
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#/ /__/ // / _ \/ _ \/ -_) __(_-< > _/_ _/ / ,< / -_) // / / _ \/ _ `/
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#\___/\_, / .__/_//_/\__/_/ /___/ |_____/ /_/|_|\__/\_, /_/_//_/\_, /
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# /___/_/ /___/ /___/
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#
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Ciphers aes256-gcm@openssh.com,aes256-ctr
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KexAlgorithms curve25519-sha256@libssh.org,ecdh-sha2-nistp521
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MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-512
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@ -37,7 +37,7 @@ Protocol 2
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# / /__/ _ \/ _ `/ _ `/ / _ \/ _ `/
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#/____/\___/\_, /\_, /_/_//_/\_, /
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# /___//___/ /___/
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#
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#SyslogFacility AUTH
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#LogLevel INFO
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@ -45,47 +45,39 @@ Protocol 2
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# / _ |__ __/ /_/ / ___ ___ / /_(_)______ _/ /_(_)__ ___
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# / __ / // / __/ _ \/ -_) _ \/ __/ / __/ _ `/ __/ / _ \/ _ \
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#/_/ |_\_,_/\__/_//_/\__/_//_/\__/_/\__/\_,_/\__/_/\___/_//_/
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#
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AllowUsers coby
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AllowGroups coby
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#LoginGraceTime 2m
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PermitRootLogin no
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#StrictModes yes
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#MaxAuthTries 6
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#MaxSessions 10
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MaxAuthTries 3
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MaxSessions 10
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PubkeyAuthentication yes
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# Expect .ssh/authorized_keys2 to be disregarded by default in future.
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#AuthorizedKeysFile .ssh/authorized_keys .ssh/authorized_keys2
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#AuthorizedPrincipalsFile none
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#AuthorizedKeysCommand none
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#AuthorizedKeysCommandUser nobody
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# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
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#HostbasedAuthentication no
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# Change to yes if you don't trust ~/.ssh/known_hosts for
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# HostbasedAuthentication
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#IgnoreUserKnownHosts no
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# Don't read the user's ~/.rhosts and ~/.shosts files
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#IgnoreRhosts yes
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# To disable tunneled clear text passwords, change to no here!
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PasswordAuthentication no
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PermitEmptyPasswords no
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# Change to yes to enable challenge-response passwords (beware issues with
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# some PAM modules and threads)
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#AuthorizedKeysFile .ssh/authorized_keys
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#AuthorizedPrincipalsFile none
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#AuthorizedKeysCommand none
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#AuthorizedKeysCommandUser nobody
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#HostbasedAuthentication no
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#IgnoreUserKnownHosts no
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#IgnoreRhosts yes
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ChallengeResponseAuthentication no
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UsePam yes
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# __ __ __
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# / //_/__ ____/ / ___ _______ ___
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# / ,< / -_) __/ _ \/ -_) __/ _ \(_-<
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#/_/|_|\__/_/ /_.__/\__/_/ \___/___/
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#
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#KerberosAuthentication no
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KerberosAuthentication no
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#KerberosOrLocalPasswd yes
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#KerberosTicketCleanup yes
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#KerberosGetAFSToken no
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@ -94,30 +86,21 @@ ChallengeResponseAuthentication no
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# / ___/ __/ __/ _ | / _ \/ _/
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#/ (_ /\ \_\ \/ __ |/ ___// /
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#\___/___/___/_/ |_/_/ /___/
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#
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#GSSAPIAuthentication no
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GSSAPIAuthentication no
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#GSSAPICleanupCredentials yes
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#GSSAPIStrictAcceptorCheck yes
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#GSSAPIKeyExchange no
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# Set this to 'yes' to enable PAM authentication, account processing,
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# and session processing. If this is enabled, PAM authentication will
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# be allowed through the ChallengeResponseAuthentication and
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# PasswordAuthentication. Depending on your PAM configuration,
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# PAM authentication via ChallengeResponseAuthentication may bypass
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# the setting of "PermitRootLogin without-password".
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# If you just want the PAM account and session checks to run without
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# PAM authentication, then enable this but set PasswordAuthentication
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# and ChallengeResponseAuthentication to 'no'.
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UsePAM yes
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# ____ __
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# / __/_ __/ /________ _
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# / _/ \ \ / __/ __/ _ `/
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#/___//_\_\\__/_/ \_,_/
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#
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#AllowAgentForwarding yes
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#AllowTcpForwarding yes
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AllowAgentForwarding no
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AllowTcpForwarding no
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PermitTunnel no
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GatewayPorts no
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X11Forwarding no
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#X11DisplayOffset 10
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@ -133,22 +116,8 @@ ClientAliveCountMax 3
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#UseDNS no
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#PidFile /var/run/sshd.pid
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#MaxStartups 10:30:100
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#PermitTunnel no
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#ChrootDirectory none
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#VersionAddendum none
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# No default banner path
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#Banner none
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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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# Example of overriding settings on a per-user basis
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#Match User anoncvs
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# X11Forwarding no
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# AllowTcpForwarding no
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# PermitTTY no
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# ForceCommand cvs server
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Subsystem sftp /usr/lib/openssh/sftp-server
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