ajout ferm vpn

README.md

@@ -105,5 +105,5 @@ cd tools/ansible/gsb2023
 bash agoss # lance le test portant le nom de la machine 
 ```
 
-`agoss -f tap` permet de lancer le test avec le détail d'exécution
+`bash agoss -f tap` permet de lancer le test avec le détail d'exécution
 

roles/fw-ferm/files/ferm2.conf

@@ -0,0 +1,44 @@
+@def $DEV_VPN= wg0;
+
+table filter {
+    chain INPUT {
+        policy DROP;
+
+        # connection tracking
+        mod state state INVALID DROP;
+        mod state state (ESTABLISHED RELATED) ACCEPT;
+
+        # allow local connections
+        interface lo ACCEPT;
+
+        # respond to ping
+        proto icmp icmp-type echo-request ACCEPT;
+        # disallow ssh
+        proto tcp dport ssh ACCEPT;
+  
+    }#FIN INPUT
+
+    # outgoing connections are not limited
+    chain OUTPUT {
+        policy ACCEPT;
+        # allow ssh
+        proto tcp dport ssh DROP; 
+        # respond to ping
+        proto icmp icmp-type echo-request ACCEPT;
+
+     }#FIN OUTPUT
+
+    chain FORWARD {
+        policy ACCEPT;
+
+        # connection tracking
+        mod state state INVALID DROP;
+        mod state state (ESTABLISHED RELATED) ACCEPT;
+
+        # connections from the internal net to the internet or to other
+        # internal nets are allowed
+        interface $DEV_VPN ACCEPT;
+
+        # the rest is dropped by the above policy
+    }#FIN FO
+}