# $OpenBSD: sshd_config,v 1.90 2013/05/16 04:09:14 dtucker Exp $

# This is the sshd server system-wide configuration file.  See
# sshd_config(5) for more information.

# This sshd was compiled with PATH=/usr/local/bin:/bin:/usr/bin

# The strategy used for options in the default sshd_config shipped with
# OpenSSH is to specify options with their default value where
# possible, but leave them commented.  Uncommented options change a
# default value.

<% unless (s=scope.lookupvar('::sshd::head_additional_options')).empty? -%>
<%= s %>
<% end -%>

# If you want to change the port on a SELinux system, you have to tell
# SELinux about this change.
# semanage port -a -t ssh_port_t -p tcp #PORTNUMBER
#
<% scope.lookupvar('::sshd::ports').to_a.each do |port| -%>
<% if port == 'off' -%>
#Port -- disabled by puppet
<% else -%>
Port <%= port %>
<% end -%>
<% end -%>
<% scope.lookupvar('::sshd::listen_address').to_a.each do |address| -%>
ListenAddress <%= address %>
<% end -%>

# The default requires explicit activation of protocol 1
#Protocol 2

# HostKey for protocol version 1
#HostKey /etc/ssh/ssh_host_key
# HostKeys for protocol version 2
<% scope.lookupvar('::sshd::hostkey_type').to_a.each do |hostkey_type| -%>
HostKey /etc/ssh/ssh_host_<%=hostkey_type %>_key
<% end -%>

# Lifetime and size of ephemeral version 1 server key
#KeyRegenerationInterval 1h
#ServerKeyBits 1024

# Ciphers and keying
#RekeyLimit default none

# Logging
# obsoletes QuietMode and FascistLogging
#SyslogFacility AUTH
SyslogFacility AUTHPRIV
#LogLevel INFO

# Authentication:

#LoginGraceTime 2m
PermitRootLogin <%= scope.lookupvar('::sshd::permit_root_login') %>
StrictModes <%= scope.lookupvar('::sshd::strict_modes') %>
#MaxAuthTries 6
#MaxSessions 10

RSAAuthentication <%= scope.lookupvar('::sshd::rsa_authentication') %>
PubkeyAuthentication <%= scope.lookupvar('::sshd::pubkey_authentication') %>
AuthorizedKeysFile <%= scope.lookupvar('::sshd::authorized_keys_file') %>
#AuthorizedPrincipalsFile none
#AuthorizedKeysCommand none
#AuthorizedKeysCommandRunAs nobody

# For this to work you will also need host keys in /etc/ssh/ssh_known_hosts
RhostsRSAAuthentication <%= scope.lookupvar('::sshd::rhosts_rsa_authentication') %>

# similar for protocol version 2
HostbasedAuthentication <%= scope.lookupvar('::sshd::hostbased_authentication') %>

# Change to yes if you don't trust ~/.ssh/known_hosts for
# RhostsRSAAuthentication and HostbasedAuthentication
#IgnoreUserKnownHosts no

# Don't read the user's ~/.rhosts and ~/.shosts files
IgnoreRhosts <%= scope.lookupvar('::sshd::ignore_rhosts') %>

# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication <%= scope.lookupvar('::sshd::password_authentication') %>

# To enable empty passwords, change to yes (NOT RECOMMENDED)
PermitEmptyPasswords <%= scope.lookupvar('::sshd::permit_empty_passwords') %>

# Change to no to disable s/key passwords
ChallengeResponseAuthentication <%= scope.lookupvar('::sshd::challenge_response_authentication') %>

# Kerberos options
#KerberosAuthentication no
#KerberosOrLocalPasswd yes
#KerberosTicketCleanup yes
#KerberosGetAFSToken no
#KerberosUseKuserok yes

# GSSAPI options
GSSAPIAuthentication no
GSSAPICleanupCredentials yes
#GSSAPIStrictAcceptorCheck yes
#GSSAPIKeyExchange no

# Set this to 'yes' to enable PAM authentication, account processing, 
# and session processing. If this is enabled, PAM authentication will 
# be allowed through the ChallengeResponseAuthentication and
# PasswordAuthentication.  Depending on your PAM configuration,
# PAM authentication via ChallengeResponseAuthentication may bypass
# the setting of "PermitRootLogin without-password".
# If you just want the PAM account and session checks to run without
# PAM authentication, then enable this but set PasswordAuthentication
# and ChallengeResponseAuthentication to 'no'.
# WARNING: 'UsePAM no' is not supported in Red Hat Enterprise Linux and may cause several
# problems.
#UsePAM no
UsePAM <%= scope.lookupvar('::sshd::use_pam') %>

#AllowAgentForwarding yes
AllowTcpForwarding <%= scope.lookupvar('::sshd::tcp_forwarding') %>
#GatewayPorts no
#X11Forwarding no
X11Forwarding <%= scope.lookupvar('::sshd::x11_forwarding') %>
#X11DisplayOffset 10
#X11UseLocalhost yes
PrintMotd <%= scope.lookupvar('::sshd::print_motd') %>
#PrintLastLog yes
#TCPKeepAlive yes
#UseLogin no
UsePrivilegeSeparation sandbox    # Default for new installations.
#PermitUserEnvironment no
#Compression delayed
#ClientAliveInterval 0
#ClientAliveCountMax 3
#ShowPatchLevel no
#UseDNS yes
#PidFile /var/run/sshd.pid
#MaxStartups 10:30:100
#PermitTunnel no
#ChrootDirectory none
#VersionAddendum none

# no default banner path
#Banner none

# Accept locale-related environment variables
AcceptEnv LANG LC_CTYPE LC_NUMERIC LC_TIME LC_COLLATE LC_MONETARY LC_MESSAGES
AcceptEnv LC_PAPER LC_NAME LC_ADDRESS LC_TELEPHONE LC_MEASUREMENT
AcceptEnv LC_IDENTIFICATION LC_ALL LANGUAGE
AcceptEnv XMODIFIERS


# override default of no subsystems
Subsystem sftp  <%= (s=scope.lookupvar('::sshd::sftp_subsystem')).empty? ? '/usr/libexec/openssh/sftp-server' : s %> 

<% unless (s=scope.lookupvar('::sshd::allowed_users')).empty? -%>
AllowUsers <%= s %>
<% end -%>
<% unless (s=scope.lookupvar('::sshd::allowed_groups')).empty? -%>
AllowGroups <%= s %>
<%- end -%>

# Uncomment this if you want to use .local domain
#Host *.local
#  CheckHostIP no

<% if scope.lookupvar('::sshd::hardened') == 'yes' -%>
<% if (scope.function_versioncmp([scope.lookupvar('::ssh_version'),'6.5'])) >= 0 -%>
KexAlgorithms curve25519-sha256@libssh.org
Ciphers chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes256-ctr
MACs hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,hmac-ripemd160-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256,hmac-ripemd160,umac-128@openssh.com
<% else -%>
Ciphers aes256-ctr
MACs hmac-sha1
<% end -%>
<% end -%>

# Example of overriding settings on a per-user basis
#Match User anoncvs
# X11Forwarding no
# AllowTcpForwarding no
# ForceCommand cvs server

<% unless (s=scope.lookupvar('::sshd::tail_additional_options')).empty? -%>
<%= s %>
<% end -%>