This is the default example configuration of sshd provided by OpenSSH. This config file was generated by OpenSSH running on Ubuntu 18.04.
It is located under: /etc/pam.d/sshd
# PAM configuration for the Secure Shell service # Standard Un*x authentication. @include common-auth # Disallow non-root logins when /etc/nologin exists. account required pam_nologin.so # Uncomment and edit /etc/security/access.conf if you need to set complex # access limits that are hard to express in sshd_config. # account required pam_access.so # Standard Un*x authorization. @include common-account # SELinux needs to be the first session rule. This ensures that any # lingering context has been cleared. Without this it is possible that a # module could execute code in the wrong domain. session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so close # Set the loginuid process attribute. session required pam_loginuid.so # Create a new session keyring. session optional pam_keyinit.so force revoke # Standard Un*x session setup and teardown. @include common-session # Print the message of the day upon successful login. # This includes a dynamically generated part from /run/motd.dynamic # and a static (admin-editable) part from /etc/motd. session optional pam_motd.so motd=/run/motd.dynamic session optional pam_motd.so noupdate # Print the status of the user's mailbox upon successful login. session optional pam_mail.so standard noenv #  # Set up user limits from /etc/security/limits.conf. session required pam_limits.so # Read environment variables from /etc/environment and # /etc/security/pam_env.conf. session required pam_env.so #  # In Debian 4.0 (etch), locale-related environment variables were moved to # /etc/default/locale, so read that as well. session required pam_env.so user_readenv=1 envfile=/etc/default/locale # SELinux needs to intervene at login time to ensure that the process starts # in the proper default security context. Only sessions which are intended # to run in the user's context should be run after this. session [success=ok ignore=ignore module_unknown=ignore default=bad] pam_selinux.so open # Standard Un*x password updating. @include common-password
Download the raw file with wget or curl
wget -O sshd.example http://exampleconfig.com/static/raw/openssh/ubuntu18.04/etc/pam.d/sshd
curl http://exampleconfig.com/static/raw/openssh/ubuntu18.04/etc/pam.d/sshd > sshd.example
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