diff --git a/src/agent/dist/argus-agent b/src/agent/dist/argus-agent
index 56920df..c560696 100755
Binary files a/src/agent/dist/argus-agent and b/src/agent/dist/argus-agent differ
diff --git a/src/agent/tests/docker-compose.yml b/src/agent/tests/docker-compose.yml
index 8386ac2..2cd4220 100644
--- a/src/agent/tests/docker-compose.yml
+++ b/src/agent/tests/docker-compose.yml
@@ -1,7 +1,19 @@
 services:
+  bind:
+    image: ${BIND_IMAGE_TAG:-argus-bind9:e2e}
+    container_name: argus-bind-agent-e2e
+    volumes:
+      - ./private:/private
+    restart: unless-stopped
+    networks:
+      default:
+        ipv4_address: 172.28.0.2
+
   master:
     image: argus-master:dev
     container_name: argus-master-agent-e2e
+    depends_on:
+      - bind
     environment:
       - OFFLINE_THRESHOLD_SECONDS=6
       - ONLINE_THRESHOLD_SECONDS=2
@@ -11,6 +23,10 @@ services:
     volumes:
       - ./private/argus/master:/private/argus/master
       - ./private/argus/metric/prometheus:/private/argus/metric/prometheus
+      - ./private/argus/etc:/private/argus/etc
+    networks:
+      default:
+        ipv4_address: 172.28.0.10
 
   agent:
     image: ubuntu:24.04
@@ -18,15 +34,21 @@ services:
     hostname: dev-e2euser-e2einst-pod-0
     depends_on:
       - master
+      - bind
     environment:
-      - MASTER_ENDPOINT=http://master:3000
+      - MASTER_ENDPOINT=http://master.argus.com:3000
       - REPORT_INTERVAL_SECONDS=2
     volumes:
       - ./private/argus/agent/dev-e2euser-e2einst-pod-0:/private/argus/agent/dev-e2euser-e2einst-pod-0
       - ./private/argus/agent/health/dev-e2euser-e2einst-pod-0:/private/argus/agent/health/dev-e2euser-e2einst-pod-0
+      - ./private/argus/etc:/private/argus/etc
       - ../dist/argus-agent:/usr/local/bin/argus-agent:ro
+      - ./scripts/agent_entrypoint.sh:/usr/local/bin/agent-entrypoint.sh:ro
     entrypoint:
-      - /usr/local/bin/argus-agent
+      - /usr/local/bin/agent-entrypoint.sh
+    networks:
+      default:
+        ipv4_address: 172.28.0.20
 
 networks:
   default:
diff --git a/src/agent/tests/scripts/01_bootstrap.sh b/src/agent/tests/scripts/01_bootstrap.sh
index 95ca096..41a19e1 100755
--- a/src/agent/tests/scripts/01_bootstrap.sh
+++ b/src/agent/tests/scripts/01_bootstrap.sh
@@ -5,6 +5,7 @@ SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 TEST_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
 AGENT_ROOT="$(cd "$TEST_ROOT/.." && pwd)"
 MASTER_ROOT="$(cd "$AGENT_ROOT/../master" && pwd)"
+REPO_ROOT="$(cd "$AGENT_ROOT/../.." && pwd)"
 PRIVATE_ROOT="$TEST_ROOT/private"
 TMP_ROOT="$TEST_ROOT/tmp"
 
@@ -13,15 +14,27 @@ AGENT_CONFIG_DIR="$PRIVATE_ROOT/argus/agent/$AGENT_HOSTNAME"
 AGENT_HEALTH_DIR="$PRIVATE_ROOT/argus/agent/health/$AGENT_HOSTNAME"
 MASTER_PRIVATE_DIR="$PRIVATE_ROOT/argus/master"
 METRIC_PRIVATE_DIR="$PRIVATE_ROOT/argus/metric/prometheus"
+DNS_DIR="$PRIVATE_ROOT/argus/etc"
+BIND_IMAGE_TAG="${BIND_IMAGE_TAG:-argus-bind9:e2e}"
+BIND_ROOT="$(cd "$MASTER_ROOT/../bind" && pwd)"
 
 mkdir -p "$AGENT_CONFIG_DIR"
 mkdir -p "$AGENT_HEALTH_DIR"
 mkdir -p "$MASTER_PRIVATE_DIR"
 mkdir -p "$METRIC_PRIVATE_DIR"
 mkdir -p "$TMP_ROOT"
+mkdir -p "$DNS_DIR"
 
 touch "$AGENT_HEALTH_DIR/.keep"
 
+# 中文提示：准备 bind 模块提供的 update-dns.sh，模拟生产下发
+if [[ -f "$BIND_ROOT/build/update-dns.sh" ]]; then
+  cp "$BIND_ROOT/build/update-dns.sh" "$DNS_DIR/update-dns.sh"
+  chmod +x "$DNS_DIR/update-dns.sh"
+else
+  echo "[WARN] bind update script missing at $BIND_ROOT/build/update-dns.sh"
+fi
+
 pushd "$MASTER_ROOT" >/dev/null
 ./scripts/build_images.sh --tag argus-master:dev
 popd >/dev/null
@@ -37,6 +50,12 @@ if [[ ! -x "$AGENT_BINARY" ]]; then
   exit 1
 fi
 
+# 中文提示：构建测试专用 bind9 镜像，确保解析服务可用
+pushd "$REPO_ROOT" >/dev/null
+docker build -f src/bind/build/Dockerfile -t "$BIND_IMAGE_TAG" .
+popd >/dev/null
+
 echo "$AGENT_BINARY" > "$TMP_ROOT/agent_binary_path"
+echo "$BIND_IMAGE_TAG" > "$TMP_ROOT/bind_image_tag"
 
 echo "[INFO] Agent E2E bootstrap complete"
diff --git a/src/agent/tests/scripts/02_up.sh b/src/agent/tests/scripts/02_up.sh
index f1a1234..fcb4b09 100755
--- a/src/agent/tests/scripts/02_up.sh
+++ b/src/agent/tests/scripts/02_up.sh
@@ -17,6 +17,11 @@ if [[ ! -x "$AGENT_BINARY" ]]; then
   exit 1
 fi
 
+BIND_IMAGE_TAG_VALUE="argus-bind9:e2e"
+if [[ -f "$TMP_ROOT/bind_image_tag" ]]; then
+  BIND_IMAGE_TAG_VALUE="$(cat "$TMP_ROOT/bind_image_tag")"
+fi
+
 compose() {
   if docker compose version >/dev/null 2>&1; then
     docker compose "$@"
@@ -25,13 +30,13 @@ compose() {
   fi
 }
 
-docker container rm -f argus-agent-e2e >/dev/null 2>&1 || true
+docker container rm -f argus-agent-e2e argus-master-agent-e2e argus-bind-agent-e2e >/dev/null 2>&1 || true
 
 docker network rm tests_default >/dev/null 2>&1 || true
 
 pushd "$TEST_ROOT" >/dev/null
 compose down --remove-orphans || true
-compose up -d
+BIND_IMAGE_TAG="$BIND_IMAGE_TAG_VALUE" compose up -d
 popd >/dev/null
 
 echo "[INFO] Master+Agent stack started"
diff --git a/src/agent/tests/scripts/06_restart_agent_and_reregister.sh b/src/agent/tests/scripts/06_restart_agent_and_reregister.sh
index 6a517b5..eb1ba18 100755
--- a/src/agent/tests/scripts/06_restart_agent_and_reregister.sh
+++ b/src/agent/tests/scripts/06_restart_agent_and_reregister.sh
@@ -9,6 +9,13 @@ NODE_ID="$(cat "$TMP_ROOT/node_id")"
 AGENT_HOSTNAME="dev-e2euser-e2einst-pod-0"
 NETWORK_NAME="tests_default"
 NEW_AGENT_IP="172.28.0.200"
+ENTRYPOINT_SCRIPT="$SCRIPT_DIR/agent_entrypoint.sh"
+
+# 中文提示：重启场景也需要同样的入口脚本，确保 DNS 注册逻辑一致
+if [[ ! -f "$ENTRYPOINT_SCRIPT" ]]; then
+  echo "[ERROR] agent entrypoint script missing at $ENTRYPOINT_SCRIPT" >&2
+  exit 1
+fi
 
 if [[ ! -f "$TMP_ROOT/agent_binary_path" ]]; then
   echo "[ERROR] Agent binary path missing; rerun bootstrap" >&2
@@ -68,21 +75,17 @@ if ! docker run -d \
   --ip "$NEW_AGENT_IP" \
   -v "$AGENT_DIR:/private/argus/agent/$AGENT_HOSTNAME" \
   -v "$HEALTH_DIR:/private/argus/agent/health/$AGENT_HOSTNAME" \
+  -v "$TEST_ROOT/private/argus/etc:/private/argus/etc" \
   -v "$AGENT_BINARY:/usr/local/bin/argus-agent:ro" \
-  -e MASTER_ENDPOINT=http://master:3000 \
+  -v "$ENTRYPOINT_SCRIPT:/usr/local/bin/agent-entrypoint.sh:ro" \
+  -e MASTER_ENDPOINT=http://master.argus.com:3000 \
   -e REPORT_INTERVAL_SECONDS=2 \
-  ubuntu:24.04 \
-  sleep 300 >/dev/null; then
+  --entrypoint /usr/local/bin/agent-entrypoint.sh \
+  ubuntu:24.04 >/dev/null; then
   echo "[ERROR] Failed to start agent container with custom IP" >&2
   exit 1
 fi
 
-# 在容器内启动真实 agent 进程
-if ! docker exec -d argus-agent-e2e /usr/local/bin/argus-agent; then
-  echo "[ERROR] Failed to spawn agent process inside container" >&2
-  exit 1
-fi
-
 success=false
 detail_file="$TMP_ROOT/post_restart.json"
 for _ in {1..20}; do
diff --git a/src/agent/tests/scripts/agent_entrypoint.sh b/src/agent/tests/scripts/agent_entrypoint.sh
new file mode 100755
index 0000000..8536da1
--- /dev/null
+++ b/src/agent/tests/scripts/agent_entrypoint.sh
@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+LOG_PREFIX="[AGENT-ENTRYPOINT]"
+DNS_SCRIPT="/private/argus/etc/update-dns.sh"
+DNS_CONF="/private/argus/etc/dns.conf"
+TARGET_DOMAIN="master.argus.com"
+
+log() {
+  echo "${LOG_PREFIX} $*"
+}
+
+# 中文提示：等待 bind 下发的 update-dns.sh 脚本
+for _ in {1..30}; do
+  if [[ -x "$DNS_SCRIPT" ]]; then
+    break
+  fi
+  log "等待 update-dns.sh 准备就绪..."
+  sleep 1
+done
+
+if [[ -x "$DNS_SCRIPT" ]]; then
+  log "执行 update-dns.sh 更新容器 DNS"
+  if ! "$DNS_SCRIPT"; then
+    log "update-dns.sh 执行失败，继续尝试默认 DNS"
+  fi
+else
+  log "未获取到 update-dns.sh，使用镜像默认 DNS"
+fi
+
+# 中文提示：记录当前 dns.conf 内容，便于排查
+if [[ -f "$DNS_CONF" ]]; then
+  log "dns.conf 内容: $(tr '\n' ' ' < "$DNS_CONF")"
+else
+  log "dns.conf 暂未生成"
+fi
+
+# 中文提示：尝试解析 master 域名，失败不阻塞但会打日志
+for _ in {1..30}; do
+  if getent hosts "$TARGET_DOMAIN" >/dev/null 2>&1; then
+    MASTER_IP=$(getent hosts "$TARGET_DOMAIN" | awk '{print $1}' | head -n 1)
+    log "master.argus.com 解析成功: $MASTER_IP"
+    break
+  fi
+  sleep 1
+done
+
+log "启动 argus-agent"
+exec /usr/local/bin/argus-agent
diff --git a/src/master/README.md b/src/master/README.md
index e10f08d..316f324 100644
--- a/src/master/README.md
+++ b/src/master/README.md
@@ -60,6 +60,12 @@ cd src/master/tests
 
 镜像构建阶段会安装 `supervisor`/`net-tools`/`inetutils-ping`/`vim` 等基础工具，并在运行前把 apt 源切换到内网镜像，方便容器内进一步运维。
 
+## 域名注册与 DNS 联动
+
+- Master 容器启动时会主动执行 `/private/argus/etc/update-dns.sh`（若存在），把自身 `/etc/resolv.conf` 指向 bind 服务提供的 DNS；随后解析 `eth0` 的 IPv4 地址并写入 `/private/argus/etc/master.argus.com`。该文件会被 bind 模块的 `argus_dns_sync.sh` 监控，用于生成 `master.argus.com` → 当前容器 IP 的 A 记录。
+- 测试与生产都需要将 bind 下发的 `update-dns.sh`、`dns.conf` 等文件挂载到 `/private/argus/etc/`。在 E2E 场景中，`tests/private/argus/etc` 会由脚本自动准备。
+- 其他模块（如 agent）在启动脚本中只需执行同一份 `update-dns.sh`，即可使用域名访问 master；若域名注册异常，agent 将无法成功上报，可据此快速定位问题。
+
 ## REST API 详解
 
 基础路径：`/api/v1/master`，全部返回 JSON。
diff --git a/src/master/build/start-master.sh b/src/master/build/start-master.sh
index 97a2e15..ec57f3d 100755
--- a/src/master/build/start-master.sh
+++ b/src/master/build/start-master.sh
@@ -1,6 +1,30 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
+# 中文提示：确保共享目录与 DNS 相关脚本存在
+DNS_DIR="/private/argus/etc"
+DNS_SCRIPT="${DNS_DIR}/update-dns.sh"
+MASTER_DOMAIN_FILE="${DNS_DIR}/master.argus.com"
+
+mkdir -p "$DNS_DIR"
+
+if [[ -x "$DNS_SCRIPT" ]]; then
+  echo "[INFO] Running update-dns.sh before master starts"
+  # 中文提示：若脚本存在则执行，保证容器使用 bind 作为 DNS
+  "$DNS_SCRIPT" || echo "[WARN] update-dns.sh execution failed"
+else
+  echo "[WARN] DNS update script not found or not executable: $DNS_SCRIPT"
+fi
+
+# 中文提示：记录 master 当前 IP，供 bind 服务同步
+MASTER_IP=$(ifconfig | grep -A 1 eth0 | grep inet | awk '{print $2}' || true)
+if [[ -n "${MASTER_IP}" ]]; then
+  echo "current IP: ${MASTER_IP}"
+  echo "${MASTER_IP}" > "$MASTER_DOMAIN_FILE"
+else
+  echo "[WARN] Failed to detect master IP via ifconfig"
+fi
+
 WORKERS=${GUNICORN_WORKERS:-4}
 BIND_ADDR=${GUNICORN_BIND:-0.0.0.0:3000}
 EXTRA_OPTS=${GUNICORN_EXTRA_ARGS:-}
diff --git a/src/master/tests/docker-compose.yml b/src/master/tests/docker-compose.yml
index 8c24661..7aaecf9 100644
--- a/src/master/tests/docker-compose.yml
+++ b/src/master/tests/docker-compose.yml
@@ -11,6 +11,7 @@ services:
     volumes:
       - ./private/argus/master:/private/argus/master
       - ./private/argus/metric/prometheus:/private/argus/metric/prometheus
+      - ./private/argus/etc:/private/argus/etc
     restart: unless-stopped
 
 networks:
diff --git a/src/master/tests/scripts/01_up_master.sh b/src/master/tests/scripts/01_up_master.sh
index 10f6dc2..c66698a 100755
--- a/src/master/tests/scripts/01_up_master.sh
+++ b/src/master/tests/scripts/01_up_master.sh
@@ -6,10 +6,14 @@ TEST_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
 MODULE_ROOT="$(cd "$TEST_ROOT/.." && pwd)"
 PRIVATE_ROOT="$TEST_ROOT/private"
 TMP_ROOT="$TEST_ROOT/tmp"
+DNS_ROOT="$PRIVATE_ROOT/argus/etc"
+BIND_UPDATE_SCRIPT_SRC="$(cd "$MODULE_ROOT/../bind" && pwd)/build/update-dns.sh"
+BIND_UPDATE_SCRIPT_DEST="$DNS_ROOT/update-dns.sh"
 
 mkdir -p "$PRIVATE_ROOT/argus/master"
 mkdir -p "$PRIVATE_ROOT/argus/metric/prometheus"
 mkdir -p "$TMP_ROOT"
+mkdir -p "$DNS_ROOT"
 
 # 确保上一次运行留下的容器/数据被清理
 compose() {
@@ -28,6 +32,15 @@ rm -rf "$TMP_ROOT" "$PRIVATE_ROOT"
 mkdir -p "$PRIVATE_ROOT/argus/master"
 mkdir -p "$PRIVATE_ROOT/argus/metric/prometheus"
 mkdir -p "$TMP_ROOT"
+mkdir -p "$DNS_ROOT"
+
+# 中文提示：将 bind 模块自带的 update-dns.sh 下发到共享目录，模拟实际环境
+if [[ -f "$BIND_UPDATE_SCRIPT_SRC" ]]; then
+  cp "$BIND_UPDATE_SCRIPT_SRC" "$BIND_UPDATE_SCRIPT_DEST"
+  chmod +x "$BIND_UPDATE_SCRIPT_DEST"
+else
+  echo "[WARN] bind update script missing at $BIND_UPDATE_SCRIPT_SRC"
+fi
 
 pushd "$TEST_ROOT" >/dev/null
 compose down --remove-orphans || true
diff --git a/src/master/tests/scripts/02_verify_ready_and_nodes_json.sh b/src/master/tests/scripts/02_verify_ready_and_nodes_json.sh
index 1fa59df..65142dc 100755
--- a/src/master/tests/scripts/02_verify_ready_and_nodes_json.sh
+++ b/src/master/tests/scripts/02_verify_ready_and_nodes_json.sh
@@ -6,6 +6,7 @@ TEST_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
 PRIVATE_ROOT="$TEST_ROOT/private"
 API_BASE="http://localhost:31300"
 NODES_JSON_PATH="$PRIVATE_ROOT/argus/metric/prometheus/nodes.json"
+MASTER_DOMAIN_FILE="$PRIVATE_ROOT/argus/etc/master.argus.com"
 
 # 等待 readyz 返回 200，确保数据库初始化完成
 for _ in {1..30}; do
@@ -49,3 +50,11 @@ then
 fi
 
 echo "[INFO] nodes.json 初始状态校验通过"
+
+# 中文提示：输出 master 写入的域名文件，失败不影响测试
+if [[ -f "$MASTER_DOMAIN_FILE" ]]; then
+  MASTER_IP=$(<"$MASTER_DOMAIN_FILE")
+  echo "[INFO] master.argus.com 记录: $MASTER_IP"
+else
+  echo "[WARN] 未找到 master.argus.com 记录文件，目录=$MASTER_DOMAIN_FILE"
+fi