Update deploy_ssh_server_config role for Debian 12 support
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@ -14,3 +14,4 @@ This role doesn't have nay required variables.
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- <https://infosec.mozilla.org/guidelines/openssh>
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- <https://infosec.mozilla.org/guidelines/openssh>
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- Also see [Debian 11 cloud 2023-04-21 default /etc/ssh/sshd_config](docs/Debian_11_cloud_2023-04-21_default_etc_ssh_sshd_config).
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- Also see [Debian 11 cloud 2023-04-21 default /etc/ssh/sshd_config](docs/Debian_11_cloud_2023-04-21_default_etc_ssh_sshd_config).
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- Also see [Debian 12 cloud 2023-07-25 default /etc/ssh/sshd_config](docs/Debian_12_cloud_2023-07-25_default_etc_ssh_sshd_config).
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@ -0,0 +1,123 @@
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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:/usr/bin:/bin:/usr/games
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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 override the
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# default value.
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Include /etc/ssh/sshd_config.d/*.conf
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#Port 22
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#AddressFamily any
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#ListenAddress 0.0.0.0
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#ListenAddress ::
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#HostKey /etc/ssh/ssh_host_rsa_key
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#HostKey /etc/ssh/ssh_host_ecdsa_key
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#HostKey /etc/ssh/ssh_host_ed25519_key
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# Ciphers and keying
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#RekeyLimit default none
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# Logging
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#SyslogFacility AUTH
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#LogLevel INFO
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# Authentication:
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#LoginGraceTime 2m
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#PermitRootLogin prohibit-password
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#StrictModes yes
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#MaxAuthTries 6
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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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KbdInteractiveAuthentication no
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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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# 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 KbdInteractiveAuthentication and
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# PasswordAuthentication. Depending on your PAM configuration,
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# PAM authentication via KbdInteractiveAuthentication may bypass
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# the setting of "PermitRootLogin prohibit-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 KbdInteractiveAuthentication to 'no'.
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UsePAM yes
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#AllowAgentForwarding yes
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#AllowTcpForwarding yes
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#GatewayPorts no
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X11Forwarding yes
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#X11DisplayOffset 10
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#X11UseLocalhost yes
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#PermitTTY yes
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PrintMotd no
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#PrintLastLog yes
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#TCPKeepAlive yes
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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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#UseDNS no
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#PidFile /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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ClientAliveInterval 120
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@ -4,14 +4,15 @@
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block:
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block:
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- name: deploy `sshd_config`
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- name: deploy `sshd_config`
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ansible.builtin.copy:
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ansible.builtin.template:
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force: true
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force: true
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dest: /etc/ssh/sshd_config
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dest: /etc/ssh/sshd_config
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mode: 0644
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mode: 0644
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owner: root
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owner: root
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group: root
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group: root
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src: sshd_config
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src: sshd_config.j2
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register: deploy_ssh_server_config__ssh_config_copy_result
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register: deploy_ssh_server_config__ssh_config_copy_result
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when: inventory_hostname in groups['Debian_CloudInit_VMs']
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- name: deactivate short moduli
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- name: deactivate short moduli
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ansible.builtin.shell:
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ansible.builtin.shell:
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@ -34,16 +34,28 @@ AuthenticationMethods publickey
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PubkeyAuthentication yes
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PubkeyAuthentication yes
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# Don't do the other authentication types.
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# Don't do the other authentication types.
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PasswordAuthentication no
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PasswordAuthentication no
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{# If on Debian 12, use the new keyword (KbdInteractiveAuthentication instead of ChallengeResponseAuthentication). #}
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{% if ansible_facts["distribution"] == "Debian" and ansible_facts["distribution_major_version"] == "12" %}
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KbdInteractiveAuthentication no
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{% else %}
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ChallengeResponseAuthentication no
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ChallengeResponseAuthentication no
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{% endif %}
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KerberosAuthentication no
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KerberosAuthentication no
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GSSAPIAuthentication no
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GSSAPIAuthentication no
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# Don't allow root login.
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# Don't allow root login.
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PermitRootLogin no
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PermitRootLogin no
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{# If on Debian 12, use the new keyword (KbdInteractiveAuthentication instead of ChallengeResponseAuthentication). #}
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{% if ansible_facts["distribution"] == "Debian" and ansible_facts["distribution_major_version"] == "12" %}
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# Set this to "yes", but have "PasswordAuthentication" and
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# "KbdInteractiveAuthentication" set to "no", to have account and session checks
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# run.
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{% else %}
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# Set this to "yes", but have "PasswordAuthentication" and
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# Set this to "yes", but have "PasswordAuthentication" and
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# "ChallengeResponseAuthentication" set to "no", to have account and session
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# "ChallengeResponseAuthentication" set to "no", to have account and session
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# checks run.
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# checks run.
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{% endif %}
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# See "docs/Debian_11_cloud_2023-04-21_default_etc_ssh_sshd_config" for more
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# See "docs/Debian_11_cloud_2023-04-21_default_etc_ssh_sshd_config" for more
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# information.
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# information.
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UsePAM yes
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UsePAM yes
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