ykxmz 1.5.0锛氫慨澶嶆墜琛ㄧ TLS 璇佷功鏍¢獙 + MTU 淇缃戠粶绋冲畾鎬?

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
- 鐢婚潰蹇冭烦甯э細闈欐鏃剁渷娴侀噺锛屽鎴风浠嶇煡閬撴祦鏄椿鐨?- 閿佸睆鏃剁粰鍑哄彲鎿嶄綔鐨勬彁绀?
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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- 璁稿彲鍗忚 / 瀹夎鍓嶅繀璇?/ 瀹夎鍚庨』鐭ワ紙浣滆€咃細灏忛害瀛愶級
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2026-10-06 19:01:05 +08:00
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#!/bin/bash
# 修 MTU 问题 —— 这很可能就是 30% 握手失败的根因。
#
# 证据:
# ping 到 1.1.1.1:包 1448 通、1488 丢 33%、1500 全丢
# ping 到 Cloudflare 边缘:包 1428 就开始丢
# HTTPS 握手成功率 0/20(TLS 证书是大包)
# TCP 小包握手 19/20
# -> 接口 MTU 写 1500,实际路径扛不住,大包被丢
#
# 三种修法,逐个试,量效果:
# A) tcp_mtu_probing=1 —— 内核自己探测路径 MTU
# B) MSS 夹到 1360 —— 让对端也别发大包
# C) 接口 MTU 降到 1400 —— 最直接
set -u
URL=https://relay.xxmxxs.top
EDGE=198.41.192.107
RELAY_DIR=/root/lanremote-relay
https_ok() {
local ok=0
for _ in $(seq 1 12); do
timeout 10 curl -4 -s -o /dev/null \
https://www.cloudflare.com/cdn-cgi/trace 2>/dev/null && ok=$((ok+1))
done
echo "$ok"
}
tunnel_ok() {
local ok=0
for _ in $(seq 1 12); do
c=$(timeout 12 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=$((ok+1))
done
echo "$ok"
}
report() {
local label="$1"
echo " [$label]"
echo " HTTPS 握手成功 $(https_ok)/12"
echo " 隧道可用 $(tunnel_ok)/12"
}
echo "===== 基线(什么都还没改)====="
report "基线"
echo
echo "===== A) 打开 tcp_mtu_probing ====="
sysctl -w net.ipv4.tcp_mtu_probing=1 >/dev/null 2>&1
echo " tcp_mtu_probing = $(cat /proc/sys/net/ipv4/tcp_mtu_probing)"
sleep 2
report "A: mtu_probing=1"
echo
echo "===== B) 再夹 MSS 到 1360 ====="
iptables -t mangle -D OUTPUT -p tcp --tcp-flags SYN,RST SYN \
-j TCPMSS --set-mss 1360 2>/dev/null || true
iptables -t mangle -A OUTPUT -p tcp --tcp-flags SYN,RST SYN \
-j TCPMSS --set-mss 1360 2>/dev/null
iptables -t mangle -A POSTROUTING -p tcp --tcp-flags SYN,RST SYN \
-j TCPMSS --set-mss 1360 2>/dev/null
echo " 已加 MSS=1360 规则:"
iptables -t mangle -L -n 2>/dev/null | grep -i mss | sed 's/^/ /'
sleep 2
report "B: + MSS 1360"
echo
echo "===== C) 再把 wlan0 的 MTU 降到 1400 ====="
ip link set dev wlan0 mtu 1400 2>/dev/null && echo " wlan0 MTU = $(cat /sys/class/net/wlan0/mtu)" \
|| echo " 改不了(可能需要重启网络)"
sleep 3
report "C: + MTU 1400"
echo
echo "===== 汇总 ====="
echo " 看上面三组对比:哪一组 HTTPS 握手成功率明显上来,就是它。"
echo
echo " 当前设置:"
echo " tcp_mtu_probing = $(cat /proc/sys/net/ipv4/tcp_mtu_probing)"
echo " wlan0 mtu = $(cat /sys/class/net/wlan0/mtu)"
iptables -t mangle -L -n 2>/dev/null | grep -ci mss | sed 's/^/ MSS 规则数 = /'