--- - name: Disable IPv6 block: - name: Add to /etc/default/grub option ipv6.disable=1 ansible.builtin.lineinfile: path: /etc/default/grub regexp: '^GRUB_CMDLINE_LINUX="' line: GRUB_CMDLINE_LINUX="ipv6.disable=1" notify: - Update config grub on Debian like when: ansible_os_family == "Debian"