feat: add diagnostic and management scripts for DNS, NPM, and cluster infrastructure

scripts/test_dns_record_ips.py

@@ -0,0 +1,30 @@
+import socket
+import sys
+
+def make_query(name):
+    import random
+    txid = random.randint(1, 65535)
+    header = txid.to_bytes(2, 'big') + (0x0100).to_bytes(2, 'big') + (1).to_bytes(2, 'big') + b'\x00\x00\x00\x00\x00\x00'
+    qname = b''.join([bytes([len(p)]) + p.encode('ascii') for p in name.split('.')]) + b'\x00'
+    return header + qname + (1).to_bytes(2, 'big') + (1).to_bytes(2, 'big')
+
+def query_ip(server, domain):
+    packet = make_query(domain)
+    s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+    s.settimeout(2.0)
+    try:
+        s.sendto(packet, (server, 53))
+        data, _ = s.recvfrom(1024)
+        # Parse answer IP (last 4 bytes of first A record)
+        if len(data) >= 16:
+            ip = f"{data[-4]}.{data[-3]}.{data[-2]}.{data[-1]}"
+            return ip
+    except Exception as e:
+        return str(e)
+    finally:
+        s.close()
+
+for server in ["140.44.4.36", "140.44.4.65"]:
+    for dom in ["pihole1.snarfnet.net", "pihole2.snarfnet.net", "dns1.snarfnet.net", "dns2.snarfnet.net", "ns1.snarfnet.net", "ns2.snarfnet.net"]:
+        ip = query_ip(server, dom)
+        print(f"[{server}] {dom:<25} -> {ip}")