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---
- name: install ssh-server
apt: name=openssh-server state=present
- name: hardening ssh-server config
lineinfile:
regexp: "{{ item.regexp }}"
line: "{{ item.line }}"
dest: /etc/ssh/sshd_config
mode: 0644
with_items:
- { "regexp": "^#?\\s*IgnoreRhosts", "line": "IgnoreRhosts yes" }
- { "regexp": "^#?\\s*PermitRootLogin", "line": "PermitRootLogin without-password" }
- { "regexp": "^#?\\s*PubkeyAuthentication", "line": "PubkeyAuthentication yes" }
- { "regexp": "^#?\\s*HostbasedAuthentication", "line": "HostbasedAuthentication no" }
- { "regexp": "^#?\\s*PermitEmptyPasswords", "line": "PermitEmptyPasswords no" }
- { "regexp": "^#?\\s*UseDNS", "line": "UseDNS no" }
notify: restart ssh
- name: limit allowed users
lineinfile:
dest: /etc/ssh/sshd_config
regexp: "^AllowUsers"
line: "AllowUsers {{ ' '.join([ 'root' ] | union(sshserver_allowusers_group | default([])) | union(sshserver_allowusers_host | default([]))) }}"
notify: restart ssh
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