feat(core): recursive DNS server after Java, measured with Java FILIUS

The resolver runs on the events now (a query, its dnsQueryTimeout, its answer at the socket); the blocking resolveDns waits for it, and a recursive server uses it: its own records, else the zone's name server from its records, else its own DNS server, else a referral (DNSServer.answerWithRemoteData). DnsRun plays five stories on the new dns-recursive network. Measured and not taken: a server that is its zone's name server asks itself, which asks itself again, without end (the client times out, then every level floods its own DNS server); Java guards only the step through its own DNS server. The core asks itself in neither step. That story is compared up to the client's query (JAVA_UNTIL). Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-30 18:46:32 +00:00
parent f5c61cdce7
commit 313786e738
13 changed files with 1570 additions and 91 deletions
@@ -0,0 +1,142 @@
+{
+  "seed": 51,
+  "nodes": [
+    {
+      "id": "00000000-0000-0000-0000-000000000101",
+      "kind": "pc",
+      "ports": [
+        {
+          "id": "00000000-0000-0000-0000-000000000111",
+          "label": "eth0"
+        }
+      ]
+    },
+    {
+      "id": "00000000-0000-0000-0000-000000000102",
+      "kind": "pc",
+      "ports": [
+        {
+          "id": "00000000-0000-0000-0000-000000000112",
+          "label": "eth0"
+        }
+      ]
+    },
+    {
+      "id": "00000000-0000-0000-0000-000000000103",
+      "kind": "pc",
+      "ports": [
+        {
+          "id": "00000000-0000-0000-0000-000000000113",
+          "label": "eth0"
+        }
+      ]
+    },
+    {
+      "id": "00000000-0000-0000-0000-000000000104",
+      "kind": "pc",
+      "ports": [
+        {
+          "id": "00000000-0000-0000-0000-000000000114",
+          "label": "eth0"
+        }
+      ]
+    },
+    {
+      "id": "00000000-0000-0000-0000-000000000105",
+      "kind": "networkSwitch",
+      "ports": [
+        {
+          "id": "00000000-0000-0000-0000-000000000121",
+          "label": "sw1"
+        },
+        {
+          "id": "00000000-0000-0000-0000-000000000122",
+          "label": "sw2"
+        },
+        {
+          "id": "00000000-0000-0000-0000-000000000123",
+          "label": "sw3"
+        },
+        {
+          "id": "00000000-0000-0000-0000-000000000124",
+          "label": "sw4"
+        },
+        {
+          "id": "00000000-0000-0000-0000-000000000125",
+          "label": "sw5"
+        }
+      ]
+    }
+  ],
+  "links": [
+    {
+      "id": "00000000-0000-0000-0000-00000000F001",
+      "sourceNode": "00000000-0000-0000-0000-000000000101",
+      "sourcePort": "00000000-0000-0000-0000-000000000111",
+      "targetNode": "00000000-0000-0000-0000-000000000105",
+      "targetPort": "00000000-0000-0000-0000-000000000121"
+    },
+    {
+      "id": "00000000-0000-0000-0000-00000000F002",
+      "sourceNode": "00000000-0000-0000-0000-000000000102",
+      "sourcePort": "00000000-0000-0000-0000-000000000112",
+      "targetNode": "00000000-0000-0000-0000-000000000105",
+      "targetPort": "00000000-0000-0000-0000-000000000122"
+    },
+    {
+      "id": "00000000-0000-0000-0000-00000000F003",
+      "sourceNode": "00000000-0000-0000-0000-000000000103",
+      "sourcePort": "00000000-0000-0000-0000-000000000113",
+      "targetNode": "00000000-0000-0000-0000-000000000105",
+      "targetPort": "00000000-0000-0000-0000-000000000123"
+    },
+    {
+      "id": "00000000-0000-0000-0000-00000000F004",
+      "sourceNode": "00000000-0000-0000-0000-000000000104",
+      "sourcePort": "00000000-0000-0000-0000-000000000114",
+      "targetNode": "00000000-0000-0000-0000-000000000105",
+      "targetPort": "00000000-0000-0000-0000-000000000124"
+    }
+  ],
+  "devices": {
+    "00000000-0000-0000-0000-000000000101": {
+      "ip": "192.168.0.20",
+      "mask": "255.255.255.0",
+      "dns": "192.168.0.10"
+    },
+    "00000000-0000-0000-0000-000000000102": {
+      "ip": "192.168.0.10",
+      "mask": "255.255.255.0",
+      "dns": "192.168.0.11"
+    },
+    "00000000-0000-0000-0000-000000000103": {
+      "ip": "192.168.0.11",
+      "mask": "255.255.255.0"
+    },
+    "00000000-0000-0000-0000-000000000104": {
+      "ip": "192.168.0.21",
+      "mask": "255.255.255.0",
+      "dns": "192.168.0.99"
+    }
+  },
+  "dnsServers": {
+    "00000000-0000-0000-0000-000000000102": {
+      "records": [
+        "web.filius.de A 192.168.0.30",
+        "filius.de MX mail.filius.de",
+        "mail.filius.de A 192.168.0.31",
+        "schule.de NS ns.schule.de",
+        "ns.schule.de A 192.168.0.11",
+        "filius.de NS ns.filius.de",
+        "ns.filius.de A 192.168.0.10"
+      ],
+      "recursive": true
+    },
+    "00000000-0000-0000-0000-000000000103": {
+      "records": [
+        "www.schule.de A 192.168.0.40"
+      ]
+    }
+  },
+  "steps": []
+}