Add a non working setup for ip forwarding

playbook.yml

@@ -9,16 +9,16 @@
   roles:
     # These roles are disabled after they have being applied once for performance reasons, it should be safe to enable them again.
     # Notice that this role changes some settings on reruns (on the "Change various sysctl-settings" task), doesn't seem problematic though.
-    - role: devsec.hardening.os_hardening
-      become: true
-    - role: devsec.hardening.ssh_hardening
-      become: true
-    - role: snapcraft
-    - role: user
+    # - role: devsec.hardening.os_hardening
+    #   become: true
+    # - role: devsec.hardening.ssh_hardening
+    #   become: true
+    # - role: snapcraft
+    # - role: user
+    # - role: cloudflare-ddns
+    # - role: reverse-proxy
+    # - role: actual
     - role: pi-hole
-    - role: cloudflare-ddns
-    - role: reverse-proxy
-    - role: actual
   vars:
     # devsec.hardening.os_hardening vars:
     os_auth_pw_max_age: 99999 # Effectively disables the setting as mentioned in the docs.
@@ -27,6 +27,7 @@
       - squashfs # Used by Snapcraft which is installed on the Raspberry Pi at some moment
     sysctl_overwrite:
       vm.mmap_rnd_bits: 16 # See the "sysctl - vm.mmap_rnd_bits" section of the docs.
+      net.ipv4.ip_forward: 1 # We're specifically going to allow ufw forwarding in the playbook.
     # devsec.hardening.ssh_hardening vars:
     ssh_allow_users: 'thomas'
     ssh_client_port: 22 # Default, but duplicated here for documentation purpose. Not changed because its only accessible via LAN.
@@ -39,18 +40,23 @@
     #     dest: './.ansible_facts.json'
     #     content: "{{ ansible_facts }}"
     #     mode: "0600"
-    - name: Configure hostname
-      become: true
-      ansible.builtin.hostname:
-        name: "{{ hostname }}"
     - name: Add FQDN name in /etc/hosts
       become: true
       ansible.builtin.lineinfile:
         path: /etc/hosts
         line: "{{ ansible_facts['default_ipv4']['address'] }} {{ hostname }}.kleinendorst.info {{ hostname }}"
+    # For some reason sudo becomes very slow when this isn't correctly configured. Fixing the configuration as suggested
+    # here: https://www.linuxquestions.org/questions/linux-newbie-8/fedora-11-sudo-has-a-20-second-start-delay-732291/#post3575840
+    # fixed the problem for me. We could try to remove the default hostname variable which was added by using the "ansible_facts['hostname']"
+    # variable which is fetched in the special "Gathering facts" step.
+    - name: Configure hostname
+      become: true
+      ansible.builtin.hostname:
+        name: "{{ hostname }}"
     # TODO: Replace this with setup that sets up unnattended updates on the machine itself.
     - name: Update all packages to their latest version # noqa: package-latest
       become: true
       ansible.builtin.apt:
         name: "*"
         state: latest
+# TODO: install vim on the system