d78749fd8f
types you want to support in your sshd_config. We use the ssh_version fact to determine the default hostkey types. Only enable rsa and ed25519 for ssh versions greater or equal to 6.5, otherwise enable rsa and dsa. Some distributions, such as debian, also enable ecdsa as a hostkey type, but this is a known bad NIST curve, so we do not enable that by default (thus deviating from the stock sshd config)
180 lines
5.6 KiB
Text
180 lines
5.6 KiB
Text
# $OpenBSD: sshd_config,v 1.90 2013/05/16 04:09:14 dtucker Exp $
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# This is the sshd server system-wide configuration file. See
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# sshd_config(5) for more information.
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# This sshd was compiled with PATH=/usr/local/bin:/bin:/usr/bin
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# The strategy used for options in the default sshd_config shipped with
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# OpenSSH is to specify options with their default value where
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# possible, but leave them commented. Uncommented options change a
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# default value.
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<% unless (s=scope.lookupvar('sshd::head_additional_options')).empty? -%>
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<%= s %>
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<% end -%>
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# If you want to change the port on a SELinux system, you have to tell
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# SELinux about this change.
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# semanage port -a -t ssh_port_t -p tcp #PORTNUMBER
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#
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<% scope.lookupvar('sshd::ports').to_a.each do |port| -%>
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<% if port == 'off' -%>
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#Port -- disabled by puppet
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<% else -%>
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Port <%= port %>
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<% end -%>
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<% end -%>
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<% scope.lookupvar('sshd::listen_address').to_a.each do |address| -%>
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ListenAddress <%= address %>
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<% end -%>
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# The default requires explicit activation of protocol 1
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#Protocol 2
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# HostKey for protocol version 1
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#HostKey /etc/ssh/ssh_host_key
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# HostKeys for protocol version 2
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<% scope.lookupvar('sshd::hostkey_type').to_a.each do |hostkey_type| -%>
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HostKey /etc/ssh/ssh_host_<%=hostkey_type %>_key
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<% end -%>
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# Lifetime and size of ephemeral version 1 server key
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#KeyRegenerationInterval 1h
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#ServerKeyBits 1024
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# Ciphers and keying
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#RekeyLimit default none
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# Logging
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# obsoletes QuietMode and FascistLogging
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#SyslogFacility AUTH
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SyslogFacility AUTHPRIV
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#LogLevel INFO
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# Authentication:
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#LoginGraceTime 2m
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PermitRootLogin <%= scope.lookupvar('sshd::permit_root_login') %>
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StrictModes <%= scope.lookupvar('sshd::strict_modes') %>
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#MaxAuthTries 6
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#MaxSessions 10
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RSAAuthentication <%= scope.lookupvar('sshd::rsa_authentication') %>
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PubkeyAuthentication <%= scope.lookupvar('sshd::pubkey_authentication') %>
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AuthorizedKeysFile <%= scope.lookupvar('sshd::authorized_keys_file') %>
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#AuthorizedPrincipalsFile none
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#AuthorizedKeysCommand none
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#AuthorizedKeysCommandRunAs 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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RhostsRSAAuthentication <%= scope.lookupvar('sshd::rhosts_rsa_authentication') %>
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# similar for protocol version 2
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HostbasedAuthentication <%= scope.lookupvar('sshd::hostbased_authentication') %>
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# Change to yes if you don't trust ~/.ssh/known_hosts for
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# RhostsRSAAuthentication and 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 <%= scope.lookupvar('sshd::ignore_rhosts') %>
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# To disable tunneled clear text passwords, change to no here!
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PasswordAuthentication <%= scope.lookupvar('sshd::password_authentication') %>
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# To enable empty passwords, change to yes (NOT RECOMMENDED)
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PermitEmptyPasswords <%= scope.lookupvar('sshd::permit_empty_passwords') %>
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# Change to no to disable s/key passwords
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ChallengeResponseAuthentication <%= scope.lookupvar('sshd::challenge_response_authentication') %>
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# Kerberos options
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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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#KerberosUseKuserok yes
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# GSSAPI options
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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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# WARNING: 'UsePAM no' is not supported in Red Hat Enterprise Linux and may cause several
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# problems.
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#UsePAM no
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UsePAM <%= scope.lookupvar('sshd::use_pam') %>
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#AllowAgentForwarding yes
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AllowTcpForwarding <%= scope.lookupvar('sshd::tcp_forwarding') %>
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#GatewayPorts no
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#X11Forwarding no
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X11Forwarding <%= scope.lookupvar('sshd::x11_forwarding') %>
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#X11DisplayOffset 10
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#X11UseLocalhost yes
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PrintMotd <%= scope.lookupvar('sshd::print_motd') %>
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#PrintLastLog yes
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#TCPKeepAlive yes
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#UseLogin no
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UsePrivilegeSeparation sandbox # Default for new installations.
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#PermitUserEnvironment no
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#Compression delayed
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#ClientAliveInterval 0
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#ClientAliveCountMax 3
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#ShowPatchLevel no
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#UseDNS yes
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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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# Accept locale-related environment variables
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AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
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AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
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AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
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AcceptEnv XMODIFIERS
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# override default of no subsystems
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Subsystem sftp <%= (s=scope.lookupvar('sshd::sftp_subsystem')).empty? ? '/usr/libexec/openssh/sftp-server' : s %>
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<% unless (s=scope.lookupvar('sshd::allowed_users')).empty? -%>
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AllowUsers <%= s %>
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<% end -%>
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<% unless (s=scope.lookupvar('sshd::allowed_groups')).empty? -%>
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AllowGroups <%= s %>
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<%- end -%>
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# Uncomment this if you want to use .local domain
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#Host *.local
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# CheckHostIP no
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<% if scope.lookupvar('sshd::hardened_ssl') == 'yes' -%>
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Ciphers aes256-ctr
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MACs hmac-sha1
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<% end -%>
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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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# ForceCommand cvs server
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<% unless (s=scope.lookupvar('sshd::tail_additional_options')).empty? -%>
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<%= s %>
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<% end -%>
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