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琚帶绔?- 淇 MTU 闂锛氬す MSS + 璺緞 MTU 鎺㈡祴锛堝叕缃戝彲鐢ㄧ巼 48% -> 100%锛?- 澶嶇敤 HTTP 杩炴帴锛堝厤鎺夋瘡娆℃柊寤?TLS 鐨?30% 鎻℃墜澶辫触锛?- 姣忓垎閽熷洖澶存壘灞€鍩熺綉锛岃嚜鍔ㄥ垏鍥炲揩 400 鍊嶇殑璺緞
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鎵嬭〃绔?- 鍐呯疆 GTS Root R4 / GlobalSign Root CA锛屼慨 SSLHandshakeException
- 杩炴帴閿欒缈昏瘧鎴愪汉璇濓紙璇佷功/鏃堕棿/瑙ｆ瀽/瓒呮椂鍒嗗埆鎻愮ず锛?- 缁忎腑杞繛涓婂悗鐢ㄦ湇鍔″櫒鎶ョ殑鍦板潃鍒锋柊宸查厤瀵硅褰?- 鏂板灞€鍩熺綉杩炴帴椤甸潰銆佹湇鍔″櫒寤惰繜妫€娴?
鏈嶅姟鍣ㄧ
- 鏀寔 chunked 璇锋眰浣擄紙淇瘡 16 绉掍竴娆＄殑杩炴帴閿欎贡涓庡ぇ闈㈢Н 502锛?- 缃戠粶璋冧紭鑴氭湰 net-tune.sh锛堝紑鏈鸿嚜鍔ㄥ簲鐢級
- 绠＄悊椤碉細鎵归噺鍒犻櫎銆佺綉缁滀綋妫€銆佷笅杞藉尯
- 闅ч亾鏀?HTTP/2 + 鍙岃繛鎺?
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_build/tune_ha.sh

@@ -0,0 +1,81 @@
+#!/bin/bash
+# 试不同的 cloudflared 连接数，找出这条线路上最稳的配置。
+#
+# 现状：4 条 ha-connection 的 QUIC 全在超时
+#   "failed to dial to edge with quic: timeout: handshake did not complete"
+# 怀疑：这条 4G 线路对 UDP 有节制 —— 同时建 4 条 QUIC 连接反而更容易被限。
+#
+# 试：ha=4 / ha=2 / ha=1，各观察一轮。
+set -u
+
+RELAY_DIR=/root/lanremote-relay
+UNIT=/etc/systemd/system/lanremote-tunnel.service
+URL=https://relay.xxmxxs.top
+
+restart_with() {
+    local ha="$1"
+    echo "===== 试 ha-connections=$ha ====="
+    systemctl stop lanremote-tunnel 2>/dev/null || true
+    pkill -f cloudflared 2>/dev/null || true
+    sleep 3
+
+    cat > "$UNIT" <<EOF
+[Unit]
+Description=LanRemote Cloudflare 具名隧道
+After=network-online.target lanremote-relay.service
+Wants=network-online.target lanremote-relay.service
+
+[Service]
+Type=simple
+# 必须 QUIC：实测这条线路把 HTTP/2 用的 TCP 7844 挡了
+ExecStart=/usr/local/bin/cloudflared tunnel --no-autoupdate --edge-ip-version 4 --ha-connections $ha --retries 5 --config /root/.cloudflared/config.yml run lanremote
+Restart=always
+RestartSec=5
+MemoryMax=128M
+StandardOutput=append:$RELAY_DIR/tunnel.log
+StandardError=append:$RELAY_DIR/tunnel.log
+
+[Install]
+WantedBy=multi-user.target
+EOF
+    systemctl daemon-reload
+    rm -f "$RELAY_DIR/tunnel.log"
+    systemctl start lanremote-tunnel
+    echo "  等 50 秒让它建连接…"
+    sleep 50
+
+    local conns
+    conns=$(grep -c 'Registered tunnel connection' "$RELAY_DIR/tunnel.log" 2>/dev/null || echo 0)
+    local drops
+    drops=$(grep -c 'Connection terminated' "$RELAY_DIR/tunnel.log" 2>/dev/null || echo 0)
+    echo "  已注册 $conns 条，断开 $drops 次"
+
+    local ok=0
+    for i in $(seq 1 10); do
+        C=$(timeout 20 curl -4 -s -o /dev/null -w '%{http_code}' \
+            -H 'User-Agent: LanRemote/1.4.0' "$URL/v1/health" 2>/dev/null)
+        [ "$C" = "200" ] && ok=$((ok + 1))
+        printf "    %2d: HTTP %s\n" "$i" "${C:-超时}"
+        sleep 2
+    done
+    echo "  >>> ha=$ha 可用率 $ok/10"
+    echo "$ha $ok $conns $drops" >> /root/ha_result.txt
+    echo
+}
+
+: > /root/ha_result.txt
+restart_with 4
+restart_with 2
+restart_with 1
+
+echo "===== 汇总 ====="
+printf "  %-8s %-10s %-10s %s\n" "ha" "可用/10" "已注册" "断开"
+while read -r ha ok conns drops; do
+    printf "  %-8s %-10s %-10s %s\n" "$ha" "$ok/10" "$conns" "$drops"
+done < /root/ha_result.txt
+
+BEST=$(sort -k2 -nr /root/ha_result.txt | head -1 | awk '{print $1}')
+BEST_OK=$(sort -k2 -nr /root/ha_result.txt | head -1 | awk '{print $2}')
+echo
+echo "  最稳的是 ha-connections=$BEST（$BEST_OK/10）"
+echo "$BEST" > /root/best_ha.txt