diff --git a/docker/_tests/README.md b/docker/_tests/README.md
index c947eeea..ce38ccd4 100644
--- a/docker/_tests/README.md
+++ b/docker/_tests/README.md
@@ -15,6 +15,7 @@ not touch production `data/` or `data_backup/` paths.
 ./docker/_tests/run.sh citrixhoneypot
 ./docker/_tests/run.sh conpot
 ./docker/_tests/run.sh cowrie
+./docker/_tests/run.sh ddospot
 ```
 
 Common options:
@@ -36,6 +37,8 @@ Individual tests can also be run directly:
 ./docker/_tests/tests/cowrie.sh --ssh-port 2222 --telnet-port 2323
 ./docker/_tests/tests/cowrie.sh --persona debian-bookworm-vuln
 ./docker/_tests/tests/cowrie.sh --persona openwrt-1806
+./docker/_tests/tests/ddospot.sh
+./docker/_tests/tests/ddospot.sh --dns-port 1053 --ntp-port 1123 --ssdp-port 19000
 ```
 
 ## Conventions
diff --git a/docker/_tests/tests/ddospot.sh b/docker/_tests/tests/ddospot.sh
new file mode 100755
index 00000000..308e51f2
--- /dev/null
+++ b/docker/_tests/tests/ddospot.sh
@@ -0,0 +1,511 @@
+#!/usr/bin/env bash
+
+set -Eeuo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+# shellcheck source=../lib/common.sh
+source "${SCRIPT_DIR}/../lib/common.sh"
+
+TEST_NAME="ddospot"
+DEFAULT_IMAGE="dtagdevsec/ddospot:24.04.1"
+IMAGE=""
+CHARGEN_PORT=""
+DNS_PORT=""
+NTP_PORT=""
+SSDP_PORT=""
+LOG_DIR=""
+BL_DIR=""
+DB_DIR=""
+CHARGEN_LOG_FILE=""
+DNS_LOG_FILE=""
+NTP_LOG_FILE=""
+SSDP_LOG_FILE=""
+MAPPED_CHARGEN_PORT=""
+MAPPED_DNS_PORT=""
+MAPPED_NTP_PORT=""
+MAPPED_SSDP_PORT=""
+
+usage() {
+  cat <<EOF
+Usage: $0 [options]
+
+Run an isolated post-build smoke test for the DDoSPot image.
+
+Options:
+  --image IMAGE          Image to test. Defaults to docker/ddospot/docker-compose.yml.
+  --chargen-port PORT    Host UDP port for CHARGEN. Default: dynamic free port.
+  --dns-port PORT        Host UDP port for DNS. Default: dynamic free port.
+  --ntp-port PORT        Host UDP port for NTP. Default: dynamic free port.
+  --ssdp-port PORT       Host UDP port for SSDP. Default: dynamic free port.
+  --timeout SEC          Timeout for startup, protocol, and log checks. Default: 30.
+  --bind-ip IP           Host IP to bind. Default: 127.0.0.1.
+  --keep-artifacts       Keep temporary compose file and logs for debugging.
+  -h, --help             Show this help message.
+EOF
+}
+
+parse_args() {
+  while [[ $# -gt 0 ]]; do
+    case "$1" in
+      --image)
+        [[ $# -ge 2 ]] || test_die "--image requires an argument"
+        IMAGE="$2"
+        shift 2
+        ;;
+      --image=*)
+        IMAGE="${1#*=}"
+        shift
+        ;;
+      --chargen-port)
+        [[ $# -ge 2 ]] || test_die "--chargen-port requires an argument"
+        CHARGEN_PORT="$2"
+        shift 2
+        ;;
+      --chargen-port=*)
+        CHARGEN_PORT="${1#*=}"
+        shift
+        ;;
+      --dns-port)
+        [[ $# -ge 2 ]] || test_die "--dns-port requires an argument"
+        DNS_PORT="$2"
+        shift 2
+        ;;
+      --dns-port=*)
+        DNS_PORT="${1#*=}"
+        shift
+        ;;
+      --ntp-port)
+        [[ $# -ge 2 ]] || test_die "--ntp-port requires an argument"
+        NTP_PORT="$2"
+        shift 2
+        ;;
+      --ntp-port=*)
+        NTP_PORT="${1#*=}"
+        shift
+        ;;
+      --ssdp-port)
+        [[ $# -ge 2 ]] || test_die "--ssdp-port requires an argument"
+        SSDP_PORT="$2"
+        shift 2
+        ;;
+      --ssdp-port=*)
+        SSDP_PORT="${1#*=}"
+        shift
+        ;;
+      --timeout)
+        [[ $# -ge 2 ]] || test_die "--timeout requires an argument"
+        TEST_TIMEOUT="$2"
+        shift 2
+        ;;
+      --timeout=*)
+        TEST_TIMEOUT="${1#*=}"
+        shift
+        ;;
+      --bind-ip)
+        [[ $# -ge 2 ]] || test_die "--bind-ip requires an argument"
+        TEST_BIND_IP="$2"
+        shift 2
+        ;;
+      --bind-ip=*)
+        TEST_BIND_IP="${1#*=}"
+        shift
+        ;;
+      --keep-artifacts)
+        TEST_KEEP_ARTIFACTS="true"
+        shift
+        ;;
+      -h|--help)
+        usage
+        exit 0
+        ;;
+      *)
+        test_die "Unknown option: $1"
+        ;;
+    esac
+  done
+}
+
+validate_args() {
+  test_validate_timeout
+  if [[ -n "${CHARGEN_PORT}" ]]; then
+    test_validate_port "${CHARGEN_PORT}"
+  fi
+  if [[ -n "${DNS_PORT}" ]]; then
+    test_validate_port "${DNS_PORT}"
+  fi
+  if [[ -n "${NTP_PORT}" ]]; then
+    test_validate_port "${NTP_PORT}"
+  fi
+  if [[ -n "${SSDP_PORT}" ]]; then
+    test_validate_port "${SSDP_PORT}"
+  fi
+}
+
+ensure_udp_port_free_for_docker() {
+  local port="$1"
+  local option="$2"
+
+  if [[ -z "${port}" ]]; then
+    return 0
+  fi
+
+  if (( port < 1024 )); then
+    test_info "Skipping user-space preflight for privileged UDP port ${port}; Docker will validate the binding."
+  else
+    test_ensure_udp_port_free "${TEST_BIND_IP}" "${port}" || test_die "${TEST_BIND_IP}:${port}/udp is already in use. Try ${option} <free-port>."
+  fi
+}
+
+prepare_ddospot_harness() {
+  test_prepare_harness "${TEST_NAME}"
+
+  LOG_DIR="${TEST_TMP_ROOT}/log"
+  BL_DIR="${TEST_TMP_ROOT}/bl"
+  DB_DIR="${TEST_TMP_ROOT}/db"
+  CHARGEN_LOG_FILE="${LOG_DIR}/chargenpot.log"
+  DNS_LOG_FILE="${LOG_DIR}/dnspot.log"
+  NTP_LOG_FILE="${LOG_DIR}/ntpot.log"
+  SSDP_LOG_FILE="${LOG_DIR}/ssdpot.log"
+  TEST_ARTIFACT_LOG_DIR="${LOG_DIR}"
+
+  mkdir -p "${LOG_DIR}" "${BL_DIR}" "${DB_DIR}"
+  chmod 0777 "${LOG_DIR}" "${BL_DIR}" "${DB_DIR}"
+
+  cat > "${TEST_HARNESS_COMPOSE}" <<EOF
+services:
+  ddospot:
+    image: "${IMAGE}"
+    container_name: "${TEST_CONTAINER_NAME}"
+    restart: "no"
+    read_only: true
+    user: "2000:2000"
+    ports:
+      - "${TEST_BIND_IP}:${CHARGEN_PORT}:19/udp"
+      - "${TEST_BIND_IP}:${DNS_PORT}:53/udp"
+      - "${TEST_BIND_IP}:${NTP_PORT}:123/udp"
+      - "${TEST_BIND_IP}:${SSDP_PORT}:1900/udp"
+    volumes:
+      - "${LOG_DIR}:/opt/ddospot/ddospot/logs"
+      - "${BL_DIR}:/opt/ddospot/ddospot/bl"
+      - "${DB_DIR}:/opt/ddospot/ddospot/db"
+networks:
+  default:
+    name: "${TEST_PROJECT_NAME}_net"
+EOF
+}
+
+run_chargen_probe() {
+  local token="$1"
+
+  python3 - "${TEST_BIND_IP}" "${MAPPED_CHARGEN_PORT}" "${token}" "${TEST_TIMEOUT}" <<'PY'
+import socket
+import sys
+
+host = sys.argv[1]
+port = int(sys.argv[2])
+token = sys.argv[3]
+timeout = int(sys.argv[4])
+payload = f"tpot-ddospot-chargen-{token}\n".encode("ascii")
+
+try:
+    with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
+        sock.settimeout(min(timeout, 3))
+        sock.sendto(payload, (host, port))
+        try:
+            response, _ = sock.recvfrom(4096)
+        except socket.timeout:
+            response = b""
+
+    if not response:
+        raise RuntimeError("Expected CHARGEN response, got no UDP response")
+
+    print(f"CHARGEN probe sent {len(payload)} bytes; received {len(response)} bytes")
+except Exception as exc:
+    print(f"CHARGEN probe failed: {exc}", file=sys.stderr)
+    sys.exit(1)
+PY
+}
+
+run_dns_probe() {
+  local token="$1"
+
+  python3 - "${TEST_BIND_IP}" "${MAPPED_DNS_PORT}" "${token}" "${TEST_TIMEOUT}" <<'PY'
+import random
+import socket
+import struct
+import sys
+
+host = sys.argv[1]
+port = int(sys.argv[2])
+token = sys.argv[3]
+timeout = int(sys.argv[4])
+transaction_id = random.randrange(0, 65536)
+
+question = b"".join(
+    bytes([len(label)]) + label
+    for label in (b"version", b"bind")
+) + b"\x00"
+query = (
+    struct.pack("!HHHHHH", transaction_id, 0x0100, 1, 0, 0, 0)
+    + question
+    + struct.pack("!HH", 16, 3)
+)
+
+try:
+    with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
+        sock.settimeout(min(timeout, 3))
+        sock.sendto(query, (host, port))
+        try:
+            response, _ = sock.recvfrom(4096)
+        except socket.timeout:
+            response = b""
+
+    if len(response) < 12:
+        raise RuntimeError(f"Expected DNS response, got {len(response)} bytes")
+
+    response_id, flags, qdcount, ancount, _, _ = struct.unpack("!HHHHHH", response[:12])
+    if response_id != transaction_id:
+        raise RuntimeError(f"Expected transaction id {transaction_id:#x}, got {response_id:#x}")
+    if not flags & 0x8000:
+        raise RuntimeError(f"Expected DNS response flag, got flags {flags:#x}")
+    if qdcount < 1 and ancount < 1:
+        raise RuntimeError("Expected DNS question or answer records in response")
+
+    print(f"DNS CHAOS/TXT probe {token}: received {len(response)} bytes")
+except Exception as exc:
+    print(f"DNS probe failed: {exc}", file=sys.stderr)
+    sys.exit(1)
+PY
+}
+
+run_ntp_probe() {
+  python3 - "${TEST_BIND_IP}" "${MAPPED_NTP_PORT}" "${TEST_TIMEOUT}" <<'PY'
+import socket
+import sys
+
+host = sys.argv[1]
+port = int(sys.argv[2])
+timeout = int(sys.argv[3])
+payload = b"\x1b" + (b"\x00" * 47)
+
+try:
+    with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
+        sock.settimeout(min(timeout, 3))
+        sock.sendto(payload, (host, port))
+        try:
+            response, _ = sock.recvfrom(4096)
+        except socket.timeout:
+            response = b""
+
+    if len(response) < 48:
+        raise RuntimeError(f"Expected NTP response of at least 48 bytes, got {len(response)} bytes")
+
+    mode = response[0] & 0x07
+    version = (response[0] >> 3) & 0x07
+    if mode != 4:
+        raise RuntimeError(f"Expected NTP server mode 4, got mode {mode}")
+    if version < 1:
+        raise RuntimeError(f"Expected sane NTP version, got {version}")
+
+    print(f"NTP client-mode probe received {len(response)} bytes")
+except Exception as exc:
+    print(f"NTP probe failed: {exc}", file=sys.stderr)
+    sys.exit(1)
+PY
+}
+
+run_ssdp_probe() {
+  local token="$1"
+
+  python3 - "${TEST_BIND_IP}" "${MAPPED_SSDP_PORT}" "${token}" "${TEST_TIMEOUT}" <<'PY'
+import socket
+import sys
+
+host = sys.argv[1]
+port = int(sys.argv[2])
+token = sys.argv[3]
+timeout = int(sys.argv[4])
+request = (
+    "M-SEARCH * HTTP/1.1\r\n"
+    "HOST: 239.255.255.250:1900\r\n"
+    "MAN: \"ssdp:discover\"\r\n"
+    "MX: 1\r\n"
+    "ST: ssdp:all\r\n"
+    f"USER-AGENT: tpot-ddospot-smoke/{token}\r\n"
+    "\r\n"
+).encode("ascii")
+
+try:
+    with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
+        sock.settimeout(min(timeout, 3))
+        sock.sendto(request, (host, port))
+        try:
+            response, _ = sock.recvfrom(4096)
+        except socket.timeout:
+            response = b""
+
+    if not response:
+        raise RuntimeError("Expected SSDP response, got no UDP response")
+
+    upper = response.upper()
+    if not (upper.startswith(b"HTTP/") or b"SSDP" in upper or b"UPNP" in upper):
+        raise RuntimeError(f"Expected SSDP-like HTTP response, got {response[:120]!r}")
+
+    status = response.splitlines()[0].decode("iso-8859-1", errors="replace") if response.splitlines() else "<empty>"
+    print(f"SSDP probe response: {status}")
+except Exception as exc:
+    print(f"SSDP probe failed: {exc}", file=sys.stderr)
+    sys.exit(1)
+PY
+}
+
+run_probe_with_retries() {
+  local description="$1"
+  shift
+  local deadline=$((SECONDS + TEST_TIMEOUT))
+  local output=""
+
+  while (( SECONDS < deadline )); do
+    if output="$("$@" 2>&1)"; then
+      printf '%s\n' "${output}"
+      return 0
+    fi
+    sleep 1
+  done
+
+  printf '%s\n' "${output}" >&2
+  printf '%s probe did not succeed before timeout\n' "${description}" >&2
+  return 1
+}
+
+wait_for_json_event() {
+  local json_file="$1"
+  local service="$2"
+
+  python3 - "${json_file}" "${service}" "${TEST_TIMEOUT}" <<'PY'
+import json
+import sys
+import time
+from pathlib import Path
+
+path = Path(sys.argv[1])
+service = sys.argv[2]
+timeout = int(sys.argv[3])
+deadline = time.monotonic() + timeout
+last_error = None
+
+while time.monotonic() < deadline:
+    if not path.exists():
+        last_error = f"{path} does not exist yet"
+        time.sleep(1)
+        continue
+
+    raw = path.read_text(encoding="utf-8", errors="replace")
+    if not raw.strip():
+        last_error = f"{path} is empty"
+        time.sleep(1)
+        continue
+
+    invalid = None
+    for line_number, line in enumerate(raw.splitlines(), 1):
+        if not line.strip():
+            continue
+        try:
+            event = json.loads(line)
+        except json.JSONDecodeError as exc:
+            invalid = f"{path}:{line_number}: invalid JSON: {exc}"
+            continue
+        if isinstance(event, dict):
+            print(f"{service} JSON event found in {path}:{line_number}")
+            sys.exit(0)
+        invalid = f"{path}:{line_number}: JSON event is not an object"
+
+    last_error = invalid or f"No JSON event found in {path}"
+    time.sleep(1)
+
+if last_error:
+    print(last_error, file=sys.stderr)
+sys.exit(1)
+PY
+}
+
+assert_no_runtime_errors() {
+  if grep -R -E "Traceback|NameError|Exception" "${LOG_DIR}" >/dev/null 2>&1; then
+    test_die "DDoSPot runtime error found in log files"
+  fi
+
+  if test_compose logs --no-color 2>/dev/null | grep -E "Traceback|NameError|Exception" >/dev/null 2>&1; then
+    test_die "DDoSPot runtime error found in Docker logs"
+  fi
+}
+
+main() {
+  parse_args "$@"
+  validate_args
+  test_check_dependencies
+
+  if [[ -z "${IMAGE}" ]]; then
+    IMAGE="$(test_read_compose_image "${TEST_NAME}" "${DEFAULT_IMAGE}")"
+  fi
+
+  test_info "Using image: ${IMAGE}"
+  test_require_image "${IMAGE}" "docker compose -f docker/${TEST_NAME}/docker-compose.yml build ${TEST_NAME}"
+
+  ensure_udp_port_free_for_docker "${CHARGEN_PORT}" "--chargen-port"
+  ensure_udp_port_free_for_docker "${DNS_PORT}" "--dns-port"
+  ensure_udp_port_free_for_docker "${NTP_PORT}" "--ntp-port"
+  ensure_udp_port_free_for_docker "${SSDP_PORT}" "--ssdp-port"
+
+  prepare_ddospot_harness
+  test_enable_cleanup
+
+  test_info "Starting isolated DDoSPot container"
+  test_compose up -d --no-build >/dev/null
+
+  test_wait_for_container || test_die "DDoSPot container did not stay running"
+  test_ok "Container is running"
+
+  MAPPED_CHARGEN_PORT="$(test_get_mapped_port "${TEST_NAME}" "19/udp")" || test_die "Could not resolve mapped host port for 19/udp"
+  test_ok "Port ${TEST_BIND_IP}:${MAPPED_CHARGEN_PORT} maps to container port 19/udp"
+
+  MAPPED_DNS_PORT="$(test_get_mapped_port "${TEST_NAME}" "53/udp")" || test_die "Could not resolve mapped host port for 53/udp"
+  test_ok "Port ${TEST_BIND_IP}:${MAPPED_DNS_PORT} maps to container port 53/udp"
+
+  MAPPED_NTP_PORT="$(test_get_mapped_port "${TEST_NAME}" "123/udp")" || test_die "Could not resolve mapped host port for 123/udp"
+  test_ok "Port ${TEST_BIND_IP}:${MAPPED_NTP_PORT} maps to container port 123/udp"
+
+  MAPPED_SSDP_PORT="$(test_get_mapped_port "${TEST_NAME}" "1900/udp")" || test_die "Could not resolve mapped host port for 1900/udp"
+  test_ok "Port ${TEST_BIND_IP}:${MAPPED_SSDP_PORT} maps to container port 1900/udp"
+
+  local token="ddospot-test-$(date +%s)-$$"
+
+  test_info "Running CHARGEN probe with token: ${token}"
+  run_probe_with_retries "CHARGEN" run_chargen_probe "${token}" || test_die "CHARGEN probe failed on ${TEST_BIND_IP}:${MAPPED_CHARGEN_PORT}"
+  test_wait_for_container || test_die "DDoSPot container stopped after CHARGEN probe"
+
+  test_info "Running DNS CHAOS/TXT probe with token: ${token}"
+  run_probe_with_retries "DNS" run_dns_probe "${token}" || test_die "DNS probe failed on ${TEST_BIND_IP}:${MAPPED_DNS_PORT}"
+  test_wait_for_container || test_die "DDoSPot container stopped after DNS probe"
+
+  test_info "Running NTP client-mode probe"
+  run_probe_with_retries "NTP" run_ntp_probe || test_die "NTP probe failed on ${TEST_BIND_IP}:${MAPPED_NTP_PORT}"
+  test_wait_for_container || test_die "DDoSPot container stopped after NTP probe"
+
+  test_info "Running SSDP M-SEARCH probe with token: ${token}"
+  run_probe_with_retries "SSDP" run_ssdp_probe "${token}" || test_die "SSDP probe failed on ${TEST_BIND_IP}:${MAPPED_SSDP_PORT}"
+  test_wait_for_container || test_die "DDoSPot container stopped after SSDP probe"
+
+  test_info "Waiting for DDoSPot JSON log events"
+  wait_for_json_event "${CHARGEN_LOG_FILE}" "CHARGEN" || test_die "CHARGEN JSON event was not found in chargenpot.log"
+  wait_for_json_event "${DNS_LOG_FILE}" "DNS" || test_die "DNS JSON event was not found in dnspot.log"
+  wait_for_json_event "${NTP_LOG_FILE}" "NTP" || test_die "NTP JSON event was not found in ntpot.log"
+  wait_for_json_event "${SSDP_LOG_FILE}" "SSDP" || test_die "SSDP JSON event was not found in ssdpot.log"
+  test_ok "All DDoSPot JSON events were written"
+
+  assert_no_runtime_errors
+  test_ok "No DDoSPot runtime errors found in logs"
+
+  test_ok "DDoSPot post-build smoke test completed successfully"
+}
+
+main "$@"
diff --git a/docker/ddospot/Dockerfile b/docker/ddospot/Dockerfile
index d3935008..b2015f79 100644
--- a/docker/ddospot/Dockerfile
+++ b/docker/ddospot/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20 AS builder
+FROM alpine:3.23 AS builder
 #
 # Include dist
 COPY dist/ /root/dist/
@@ -52,7 +52,7 @@ RUN pyinstaller ddospot.py \
        --hidden-import OpenSSL.crypto \
        --hidden-import OpenSSL.SSL
 #
-FROM alpine:3.20
+FROM alpine:3.23
 RUN apk --no-cache -U upgrade
 COPY --from=builder /opt/ddospot/ddospot/dist/ddospot/ /opt/ddospot/ddospot
 COPY --from=builder /opt/ddospot/ddospot/global.conf /opt/ddospot/ddospot/
diff --git a/docker/ddospot/docker-compose.yml b/docker/ddospot/docker-compose.yml
index c10744ea..55ca263a 100644
--- a/docker/ddospot/docker-compose.yml
+++ b/docker/ddospot/docker-compose.yml
@@ -18,7 +18,7 @@ services:
      - "123:123/udp"
 #     - "161:161/udp"
      - "1900:1900/udp"
-    image: "dtagdevsec/ddospot:24.04"
+    image: "dtagdevsec/ddospot:24.04.1"
     read_only: true
     volumes:
      - $HOME/tpotce/data/ddospot/log:/opt/ddospot/ddospot/logs