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sshd-config: for debian-12: config in /etc/ssh/sshd_config.d/default.conf

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This commit is contained in:
Denis Knauf 2024-01-14 13:13:57 +01:00
parent 2ff87d6f68
commit b14582103e
3 changed files with 73 additions and 47 deletions
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5
defaults/main.yml
View file

@ -2,3 +2,8 @@ has_hwrng: '{{ansible_virtualization_role != "guest" and ansible_local.devic
is_virt_guest: '{{ansible_virtualization_role == "guest"}}'
is_container: '{{ansible_virtualization_role == "guest" and ansible_virtualization_type == "lxc"}}'
sys_default_users: []
ssh_permit_root_login: 'prohibit-password'
ssh_ciphers: 'chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com'
ssh_macs: 'hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256'
ssh_kex_algorithms: 'curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group16-sha512,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256'
ssh_host_keys: [/etc/ssh/ssh_host_ed25519_key, /etc/ssh/ssh_host_rsa_key]

20
tasks/sshd_config.yml
View file

@ -1,7 +1,17 @@
---
# vim: set expandtab tabstop=2 shiftwidth=2:
- name: sshd_config
- when: '"debian" == ansible_facts["os_family"]|lower && 12 <= ansible_facts["os_version_id"]'
name: 'sshd_config.d/99-default.conf'
template:
src: 'sshd-default.conf'
dest: '/etc/ssh/sshd_config.d/99-default.conf'
owner: root
group: root
mode: 0644
- when: '"debian" != ansible_facts["os_family"]|lower || 11 >= ansible_facts["os_version_id"]'
block:
- name: sshd_config
lineinfile:
path: /etc/ssh/sshd_config
insertafter: '^\s*#\s*{{item.key}}\s+'
@ -18,25 +28,25 @@
Ciphers: 'chacha20-poly1305@openssh.com,aes256-gcm@openssh.com,aes128-gcm@openssh.com'
MACs: 'hmac-sha2-512-etm@openssh.com,hmac-sha2-256-etm@openssh.com,umac-128-etm@openssh.com,hmac-sha2-512,hmac-sha2-256'
KexAlgorithms: 'curve25519-sha256,curve25519-sha256@libssh.org,diffie-hellman-group16-sha512,diffie-hellman-group-exchange-sha256,diffie-hellman-group14-sha256'
- name: sshd_config
- name: sshd_config
lineinfile:
path: /etc/ssh/sshd_config
insertbefore: '\s*#?\s*HostKey\s+'
regexp: '^# HostKeys for protocol'
line: '# HostKeys for protocol'
- name: sshd_config - prefer ed25519
- name: sshd_config - prefer ed25519
lineinfile:
path: /etc/ssh/sshd_config
insertafter: '^# HostKeys for protocol'
regexp: '^\s*HostKey\s+/etc/ssh/ssh_host_ed25519_key\s*$'
line: 'HostKey /etc/ssh/ssh_host_ed25519_key'
- name: sshd_config - fallback rsa
- name: sshd_config - fallback rsa
lineinfile:
path: /etc/ssh/sshd_config
insertafter: '^\s*HostKey\s+/etc/ssh/ssh_host_ed25519_key\s*$'
regexp: '^\s*HostKey\s+/etc/ssh/ssh_host_rsa_key\s*$'
line: 'HostKey /etc/ssh/ssh_host_rsa_key'
- name: 'sshd_config - absent dsa / ecdsa'
- name: 'sshd_config - absent dsa / ecdsa'
lineinfile:
path: /etc/ssh/sshd_config
state: absent

11
templates/sshd-default.conf.j2 Normal file
View file

@ -0,0 +1,11 @@
{{if ssh_port is defined }}Port {{ssh_port}}{{endif}}
PermitRootLogin {{ssh_permit_root_login}}
StrictModes yes
PubkeyAuthentication yes
{{if ssh_kerberos_authentication is defined}}KerberosAuthentication {{ssh_kerberos_authentication}}{{endif}}
{{if ssh_gssapi_authentication is defined}}GSSAPIAuthentication {{ssh_gssapi_authentication}}{{endif}}
TCPKeepAlive yes
Ciphers {{ssh_ciphers}}
MACs {{ssh_macs}}
KexAlgorithms {{ssh_kex_algorithms}}
HostKey {%for k in ssh_host_keys%}{{k}}{%endfor%}