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xmz7891
b705216e4a
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? 鏂囨。 - 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
41 lines
1.5 KiB
Bash
41 lines
1.5 KiB
Bash
#!/bin/bash
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# 查设备到 Cloudflare API 的连通性 —— 下载登录证书就靠这个。
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# 之前失败就是这里超时（error="Failed to fetch resource"）。
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set -u
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echo "===== api.cloudflare.com 连 5 次 ====="
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OK=0
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for i in 1 2 3 4 5; do
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OUT=$(timeout 12 curl -4 -s -o /dev/null \
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-w '%{http_code} %{time_total}s' \
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https://api.cloudflare.com/client/v4/user 2>/dev/null)
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CODE=$(echo "$OUT" | cut -d' ' -f1)
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TIME=$(echo "$OUT" | cut -d' ' -f2)
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printf " 第 %d 次: HTTP %-4s %s\n" "$i" "${CODE:-超时}" "$TIME"
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[ "$CODE" = "200" ] && OK=$((OK + 1))
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sleep 1
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done
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echo " 成功 $OK / 5 次"
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echo
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echo "===== 延迟（下载证书用的就是这个链路）====="
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timeout 15 curl -4 -s -o /dev/null -w ' 握手 %{time_connect}s 首字节 %{time_starttransfer}s 总 %{time_total}s\n' \
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https://api.cloudflare.com/client/v4/user 2>/dev/null || echo " 超时"
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echo
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echo "===== login.cloudflareaccess.org（回调走这里）====="
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timeout 12 curl -4 -s -o /dev/null -w ' HTTP %{http_code} %{time_total}s\n' \
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https://login.cloudflareaccess.org 2>/dev/null || echo " 超时"
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echo
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echo "===== DNS 解析 ====="
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echo " api.cloudflare.com:"
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getent hosts api.cloudflare.com | head -3 | sed 's/^/ /'
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echo " login.cloudflareaccess.org:"
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getent hosts login.cloudflareaccess.org | head -3 | sed 's/^/ /'
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echo
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echo "===== 当前登录服务状态 ====="
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systemctl is-active cf-login.service
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tail -3 /root/cf_login.log 2>/dev/null | sed 's/^/ /'
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