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https SSL 握手时间过长,大于 3 秒

  •  
  •   constructor · 2020-05-18 17:19:01 +08:00 · 5529 次点击
    这是一个创建于 1662 天前的主题,其中的信息可能已经有所发展或是发生改变。

    使用 Let's Encrypt 证书,在阿里云 ECS Nginx 开启 https 。

    网站首次打开 waterfall 如下,紫色部分 SSL 花费时间太长了,可能的原因是什么?怎么解决?

    1. Waterfall

    waterfall

    2. 首页 waterfall 详情

    detail

    网站绝大部分时间都花在了 SSL 部分了。

    第 1 条附言  ·  2020-05-20 11:11:01 +08:00
    谢谢大家的帮助,现在总结一下:

    一、原因:Let's Encrypt OCSP 域名地址被污染,国内无法访问。

    二、解决方案:

    1 )购买通用域名,省心

    2 )使用阿里云免费 DV 单域名证书
    缺点:由于是单域名证书,每个域名都需要申请对应的证书,在一台服务器上部署多个服务时就有问题,比如:
    server {
    listen 443 ssl;
    server_name aaa.com;
    ssl_certificate aaa.com.crt;
    }

    server {
    listen 443 ssl;
    server_name bbb.org;
    ssl_certificate bbb.org.crt;
    }
    问题的详细信息和解决方案,参考 http://nginx.org/en/docs/http/configuring_https_servers.html 中的 “Name-based HTTPS servers”

    3 )开启 OCSP Stapling
    ssl_stapling on;
    ssl_stapling_verify on;
    ssl_trusted_certificate /etc/letsencrypt/live/mysite.com/fullchain.pem;
    resolver 8.8.8.8 8.8.4.4 216.146.35.35 216.146.36.36 valid=60s;
    resolver_timeout 2s;

    #### 或者 ####
    ssl_stapling on;
    ssl_stapling_verify on;
    ssl_stapling_file /path/to/ocsp_res.crt;
    14 条回复    2020-05-19 12:38:19 +08:00
    jaylee4869
        1
    jaylee4869  
       2020-05-18 17:23:43 +08:00
    看一下 conf
    jaylee4869
        2
    jaylee4869  
       2020-05-18 17:26:37 +08:00
    curl 网站 https 地址 -vvv
    Tink
        3
    Tink  
       2020-05-18 17:28:34 +08:00
    上 cdn
    rrfeng
        4
    rrfeng  
       2020-05-18 17:38:33 +08:00
    估计是 CA 验证在国外导致的,nginx 配置一下 ocsp stapling 吧。
    jacklin96
        5
    jacklin96  
       2020-05-18 18:06:43 +08:00
    OCSP 域名被污染了,需要换证书或者客户端翻墙
    可能直接换证书最快
    加 OCSP Stapling 也不一定有效
    constructor
        6
    constructor  
    OP
       2020-05-18 18:44:09 +08:00
    @jaylee4869

    ### 1. ngxin.conf 配置如下

    ```conf
    user www-data;
    worker_processes auto;
    pid /run/nginx.pid;

    events {
    worker_connections 768;
    # multi_accept on;
    }

    http {

    ##
    # Basic Settings
    ##

    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout 65;
    types_hash_max_size 2048;
    # server_tokens off;

    # server_names_hash_bucket_size 64;
    # server_name_in_redirect off;

    include /etc/nginx/mime.types;
    default_type application/octet-stream;

    ##
    # SSL Settings
    ##

    ssl_protocols TLSv1 TLSv1.1 TLSv1.2; # Dropping SSLv3, ref: POODLE
    ssl_prefer_server_ciphers on;

    ##
    # Logging Settings
    ##

    access_log /var/log/nginx/access.log;
    error_log /var/log/nginx/error.log;

    ##
    # Gzip Settings
    ##

    gzip on;
    gzip_disable "msie6";

    gzip_vary on;
    gzip_proxied any;
    gzip_comp_level 6;
    gzip_buffers 16 8k;
    gzip_http_version 1.1;
    gzip_types text/plain text/css application/json application/javascript text/xml application/xml application/xml+rss text/javascript;

    ##
    # Virtual Host Configs
    ##

    include /etc/nginx/conf.d/*.conf;
    include /etc/nginx/sites-enabled/*;
    }
    ```

    ### 2. 网站 dev.example.com 配置如下:

    ```conf
    server {
    listen 80;
    listen [::]:80;

    server_name dev.example.com;

    location / {
    proxy_set_header X-Forwarded-For $remote_addr;
    proxy_set_header Host $http_host;
    proxy_set_header X-Forwarded-Proto https;
    proxy_pass http://112.74.113.106:8090;
    }

    listen [::]:443 ssl; # managed by Certbot
    listen 443 ssl; # managed by Certbot
    ssl_certificate /etc/letsencrypt/live/example.com/fullchain.pem; # managed by Certbot
    ssl_certificate_key /etc/letsencrypt/live/example.com/privkey.pem; # managed by Certbot
    include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
    ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot
    }
    ```conf

    ### 3. curl -vvv https://dev.example.com 输出如下:

    ```conf
    * Rebuilt URL to: https://dev.example.com/
    * Trying 112.74.90.77...
    * TCP_NODELAY set
    * Connected to dev.example.com (112.74.90.77) port 443 (#0)
    * ALPN, offering h2
    * ALPN, offering http/1.1
    * Cipher selection: ALL:!EXPORT:!EXPORT40:!EXPORT56:!aNULL:!LOW:!RC4:@STRENGTH
    * successfully set certificate verify locations:
    * CAfile: /etc/ssl/cert.pem
    CApath: none
    * TLSv1.2 (OUT), TLS handshake, Client hello (1):
    * TLSv1.2 (IN), TLS handshake, Server hello (2):
    * TLSv1.2 (IN), TLS handshake, Certificate (11):
    * TLSv1.2 (IN), TLS handshake, Server key exchange (12):
    * TLSv1.2 (IN), TLS handshake, Server finished (14):
    * TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
    * TLSv1.2 (OUT), TLS change cipher, Client hello (1):
    * TLSv1.2 (OUT), TLS handshake, Finished (20):
    * TLSv1.2 (IN), TLS change cipher, Client hello (1):
    * TLSv1.2 (IN), TLS handshake, Finished (20):
    * SSL connection using TLSv1.2 / ECDHE-RSA-CHACHA20-POLY1305
    * ALPN, server accepted to use http/1.1
    * Server certificate:
    * subject: CN=*.example.com
    * start date: Apr 29 13:04:41 2020 GMT
    * expire date: Jul 28 13:04:41 2020 GMT
    * subjectAltName: host "dev.example.com" matched cert's "*.example.com"
    * issuer: C=US; O=Let's Encrypt; CN=Let's Encrypt Authority X3
    * SSL certificate verify ok.
    > GET / HTTP/1.1
    > Host: dev.example.com
    > User-Agent: curl/7.54.0
    > Accept: */*
    >
    < HTTP/1.1 200 OK
    < Server: nginx/1.14.0 (Ubuntu)
    < Date: Mon, 18 May 2020 10:38:26 GMT
    < Content-Type: text/html
    < Content-Length: 2878
    < Last-Modified: Sun, 17 May 2020 10:44:30 GMT
    < Connection: keep-alive
    < ETag: "5ec1158e-b3e"
    < Accept-Ranges: bytes
    ```

    * 域名和 IP 进行了替换,还请谅解。 *
    constructor
        7
    constructor  
    OP
       2020-05-18 20:22:40 +08:00
    @jacklin96
    "更换证书"是指换其他 CA 比如 Symantec 、GlobalSign 、GeoTrust 还是用 Let's Encrypt 重新生成证书?
    n329291362
        8
    n329291362  
       2020-05-18 20:43:59 +08:00
    let's encrypt 的证书 服务端配置一下 ocsp stapling 吧
    或者买其他家的证书 就是买 Symantec 、GlobalSign 、GeoTrust 之类的
    cy476571989
        9
    cy476571989  
       2020-05-18 21:04:21 +08:00
    我也有同样的问题。
    lanternxx
        10
    lanternxx  
       2020-05-18 21:26:13 +08:00
    开一下 ocsp 装订试试 虽然我觉得可能没用 chrome 应该是不检查 ocsp 的
    xiaotianhu
        11
    xiaotianhu  
       2020-05-18 22:46:56 +08:00 via iPhone
    ocsp 服务器坏了

    被迫换了阿里云免费证书。
    constructor
        12
    constructor  
    OP
       2020-05-19 09:41:50 +08:00
    OCSP 服务器连接不上, ping ocsp.int-x3.letsencrypt.org 超时

    通过 openssl 验证超时:

    ```
    openssl ocsp -issuer fullchain.pem -cert cert.pem -text -url http://ocsp.int-x3.letsencrypt.org
    OCSP Request Data:
    Version: 1 (0x0)
    Requestor List:
    Certificate ID:
    Hash Algorithm: sha1
    Issuer Name Hash: 7EE66AE7729AB3FCF8A220646C16A12D6071085D
    Issuer Key Hash: 25AA0A105713B51AB5A49554679566211FA63FCF
    Serial Number: 03638E20AC5D648DA7DB51EA00638CFAEF33
    Request Extensions:
    OCSP Nonce:
    0410053BDB6861C216D9924BC81A9295430F
    Error connecting BIO
    Error querying OCSP responder
    4733388396:error:02FFF03C:system library:func(4095):Operation timed out:/BuildRoot/Library/Caches/com.apple.xbs/Sources/libressl/libressl-22.260.1/libressl-2.6/crypto/bio/bss_conn.c:244:host=ocsp.int-x3.letsencrypt.org:80
    4733388396:error:20FFF067:BIO routines:CRYPTO_internal:connect error:/BuildRoot/Library/Caches/com.apple.xbs/Sources/libressl/libressl-22.260.1/libressl-2.6/crypto/bio/bss_conn.c:247:
    ```
    jacklin96
        13
    jacklin96  
       2020-05-19 10:35:13 +08:00
    @constructor 换其他 CA 就行,国内目前只能远离 Let's Encrypt
    BitCert
        14
    BitCert  
       2020-05-19 12:38:19 +08:00
    LE 现在不稳定
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