diff --git a/server/kernel.ts b/server/kernel.ts
index 4713c3e..43b11e4 100644
--- a/server/kernel.ts
+++ b/server/kernel.ts
@@ -119,7 +119,22 @@ export async function selectProxy(
   }
 }
 
-/** 透传一个管理接口的 GET 请求，用于运行时数据（线路、连接、日志等）。 */
-export async function proxyGet(env: Env, path: string): Promise<Response> {
-  return callApi(env, path, { signal: AbortSignal.timeout(15_000) })
+/**
+ * 透传一个管理接口的 GET 请求。
+ *
+ * `stream` 为真时不设超时：流量、内存、日志这三个接口不升级 WebSocket 时会退化成
+ * 持续吐 JSON 的分块流（内核源码 hub/route/server.go:380-383），给它们设超时等于
+ * 每隔一会儿就把连接掐断一次。
+ */
+export async function proxyGet(env: Env, path: string, stream = false): Promise<Response> {
+  return callApi(env, path, stream ? {} : { signal: AbortSignal.timeout(15_000) })
+}
+
+/** 透传一个写操作。目前只有断开连接和刷新订阅两处。 */
+export async function proxyWrite(
+  env: Env,
+  method: 'PUT' | 'DELETE',
+  path: string,
+): Promise<Response> {
+  return callApi(env, path, { method, signal: AbortSignal.timeout(30_000) })
 }
diff --git a/server/routes.test.ts b/server/routes.test.ts
index baf988d..09609b3 100644
--- a/server/routes.test.ts
+++ b/server/routes.test.ts
@@ -81,6 +81,35 @@ describe('内核接口的透传白名单', () => {
   })
 })
 
+describe('写操作的白名单', () => {
+  const write = (method: string, path: string) =>
+    handle(
+      new Request(`http://127.0.0.1:7580/api/kernel${path}`, {
+        method,
+        headers: { Authorization: `Bearer ${TOKEN}` },
+      }),
+    )
+
+  it('放行断开连接和刷新订阅', async () => {
+    expect((await write('DELETE', '/connections')).status).not.toBe(403)
+    expect((await write('DELETE', '/connections/abc-123')).status).not.toBe(403)
+    expect((await write('PUT', '/providers/proxies/subs')).status).not.toBe(403)
+  })
+
+  it('挡住没列出来的写操作', async () => {
+    // 重启内核、切换配置这类动作不该从这里走
+    expect((await write('PUT', '/configs')).status).toBe(403)
+    expect((await write('DELETE', '/cache/fakeip/flush')).status).toBe(403)
+    expect((await write('PUT', '/providers/proxies/subs/healthcheck')).status).toBe(403)
+  })
+
+  it('方法对不上也挡住', async () => {
+    // 断开连接是 DELETE，刷新订阅是 PUT，反过来都不行
+    expect((await write('PUT', '/connections')).status).toBe(403)
+    expect((await write('DELETE', '/providers/proxies/subs')).status).toBe(403)
+  })
+})
+
 describe('其它', () => {
   it('不存在的接口回 404 并带上说明', async () => {
     const res = await get('/api/nope')
diff --git a/server/routes.ts b/server/routes.ts
index 01b769c..ca74bdd 100644
--- a/server/routes.ts
+++ b/server/routes.ts
@@ -11,7 +11,7 @@
  */
 import listenerFields from '../shared/listener-fields.json' with { type: 'json' }
 import { applyConfig, listBackups, readConfig, restoreBackup } from './config-store.ts'
-import { kernelVersion, proxyGet, selectProxy } from './kernel.ts'
+import { kernelVersion, proxyGet, proxyWrite, selectProxy } from './kernel.ts'
 import { tokenFromRequest, tokenMatches } from './auth.ts'
 import type { ConfigObject } from '../vendor/config-editor/index.ts'
 import type { Env } from './env.ts'
@@ -30,6 +30,25 @@ const DELAY_PATH = /^\/(proxies|group)\/.+\/delay$/
  */
 const HEALTHCHECK_PATH = /^\/providers\/proxies\/[^/]+(\/[^/]+)?\/healthcheck$/
 
+/**
+ * 会持续吐数据的接口。透传它们时不能设超时。
+ * 内核在没有 WebSocket 升级时把这三个退化成分块的 HTTP 流，一行一个 JSON。
+ */
+const STREAM_PATHS = new Set(['/traffic', '/memory', '/logs'])
+
+/**
+ * 允许透传的写操作。
+ *
+ * 每一条都是「只改内核运行状态、不碰配置文件」的动作，所以不走落盘那条保护链路。
+ * 仍然是白名单：能写的东西必须一条条列出来。
+ */
+const WRITABLE: Array<{ method: 'PUT' | 'DELETE'; pattern: RegExp }> = [
+  // 断开某条连接，或者全部断开
+  { method: 'DELETE', pattern: /^\/connections(\/[^/]+)?$/ },
+  // 让内核重新拉取某个订阅
+  { method: 'PUT', pattern: /^\/providers\/proxies\/[^/]+$/ },
+]
+
 /** 允许透传的管理接口路径。白名单而不是黑名单——多开一个口子要有意为之。 */
 const READABLE_KERNEL_PATHS = new Set([
   '/version',
@@ -175,6 +194,17 @@ function makeRoute(env: Env, token: string) {
         : json({ message: upstream.message || '内核拒绝了这次切换' }, 422)
     }
 
+    if (path.startsWith('/api/kernel/') && (req.method === 'PUT' || req.method === 'DELETE')) {
+      const target = path.slice('/api/kernel'.length)
+      const rule = WRITABLE.find((w) => w.method === req.method && w.pattern.test(target))
+      if (!rule) return json({ message: `不允许写入该路径：${target}` }, 403)
+      const upstream = await proxyWrite(env, rule.method, target + url.search)
+      return new Response(upstream.body, {
+        status: upstream.status,
+        headers: { 'Content-Type': upstream.headers.get('Content-Type') ?? 'application/json' },
+      })
+    }
+
     if (path.startsWith('/api/kernel/') && req.method === 'GET') {
       const target = path.slice('/api/kernel'.length)
       const allowed =
@@ -182,7 +212,7 @@ function makeRoute(env: Env, token: string) {
       if (!allowed) {
         return json({ message: `不允许访问该路径：${target}` }, 403)
       }
-      const upstream = await proxyGet(env, target + url.search)
+      const upstream = await proxyGet(env, target + url.search, STREAM_PATHS.has(target))
       return new Response(upstream.body, {
         status: upstream.status,
         headers: { 'Content-Type': upstream.headers.get('Content-Type') ?? 'application/json' },