xoxys.sshd/templates/etc/ssh/sshd_config.j2

#jinja2: lstrip_blocks: True
{{ ansible_managed | comment }}

# 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:/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 override the
# default value.

# 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
#
#Port 22
#AddressFamily any
#ListenAddress 0.0.0.0
#ListenAddress ::
{% if ansible_os_family | lower == "redhat" and ansible_distribution_major_version is version('8', '<') %}

Protocol {{ sshd_protocol }}
{% endif %}

HostKey /etc/ssh/ssh_host_rsa_key
HostKey /etc/ssh/ssh_host_ecdsa_key
HostKey /etc/ssh/ssh_host_ed25519_key

# Ciphers and keying
RekeyLimit {{ sshd_rekey_limit_size }} {{ sshd_rekey_limit_time }}

{% if sshd_crypto_policy_enabled | bool %}
# This system is following system-wide crypto policy. The changes to
# crypto properties (Ciphers, MACs, ...) will not have any effect here.
# They will be overridden by command-line options passed to the server
# on command line.
# Please, check manual pages for update-crypto-policies(8) and sshd_config(5).
{% else %}
Ciphers {{ sshd_ciphers | join(',') }}
KexAlgorithms {{ sshd_kex | join(',') }}
MACs {{ sshd_macs | join(',') }}
{% endif %}

# Logging
#SyslogFacility AUTH
SyslogFacility AUTHPRIV
LogLevel {{ sshd_log_level }}

# Authentication:

#LoginGraceTime 2m
PermitRootLogin {{ sshd_permit_root_login }}
StrictModes {{ sshd_strict_modes }}
{% if sshd_allow_groups %}
AllowGroups {{ sshd_allow_groups|join(',') }}
{% endif %}
MaxAuthTries {{ sshd_max_auth_tries }}
MaxSessions {{ sshd_max_sessions }}

#PubkeyAuthentication yes

# The default is to check both .ssh/authorized_keys and .ssh/authorized_keys2
# but this is overridden so installations will only check .ssh/authorized_keys
AuthorizedKeysFile	.ssh/authorized_keys

#AuthorizedPrincipalsFile none

#AuthorizedKeysCommand none
#AuthorizedKeysCommandUser nobody

HostbasedAuthentication {{ sshd_hostbased_authentication }}
#IgnoreUserKnownHosts no
# Don't read the user's ~/.rhosts and ~/.shosts files
IgnoreRhosts {{ sshd_ignore_rhosts }}

{% if sshd_google_auth_enabled %}
# Force public key auth then ask for google auth code
AuthenticationMethods publickey,keyboard-interactive

{% endif %}
# To disable tunneled clear text passwords, change to no here!
PasswordAuthentication {{ sshd_password_authentication }}
PermitEmptyPasswords {{ sshd_permit_empty_passwords }}

# Change to no to disable s/key passwords
ChallengeResponseAuthentication {{ sshd_challenge_response_authentication }}

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

# GSSAPI options
GSSAPIAuthentication {{ sshd_gssapi_authentication }}
GSSAPICleanupCredentials no
#GSSAPIStrictAcceptorCheck yes
#GSSAPIKeyExchange no
#GSSAPIEnablek5users 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 on RH based systems and may
# cause several problems.
UsePAM yes

AllowAgentForwarding {{ sshd_allow_agent_forwarding }}
AllowTcpForwarding {{ sshd_allow_tcp_forwarding }}
#GatewayPorts no
X11Forwarding {{ sshd_x11_forwarding }}
#X11DisplayOffset 10
#X11UseLocalhost yes
#PermitTTY yes
{% if ansible_os_family | lower == "redhat" and ansible_distribution_major_version is version('7', '>') %}
PrintMotd no
{% endif %}
#PrintLastLog no
TCPKeepAlive {{ sshd_tcp_keep_alive }}
#UseLogin no
{% if ansible_os_family | lower == "redhat" and ansible_distribution_major_version is version('8', '<') %}
UsePrivilegeSeparation sandbox
{% endif %}
#PermitUserEnvironment no
Compression {{ sshd_compression }}
ClientAliveInterval {{ sshd_client_alive_interval }}
ClientAliveCountMax {{ sshd_client_alive_count_max }}
UseDNS {{ sshd_use_dns }}
#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    /usr/libexec/openssh/sftp-server

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

{% if sshd_google_auth_exclude_group is defined %}
Match User {{ sshd_google_auth_exclude_group }}
    AuthenticationMethods publickey
{% endif %}