root@sclrdev:/home/sclr/certs/FreshCerts# curl --ftp-ssl --verbose ftp://{abc}/ -u trup:trup --cacert /etc/ssl/certs/ca-certificates.crt
* About to connect() to {abc} port 21 (#0)
*   Trying {abc}...
* Connected to {abc} ({abc}) port 21 (#0)
< 220-Cerberus FTP Server - Home Edition
< 220-This is the UNLICENSED Home Edition and may be used for home, personal use only
< 220-Welcome to Cerberus FTP Server
< 220 Created by Cerberus, LLC
> AUTH SSL
< 234 Authentication method accepted
* successfully set certificate verify locations:
*   CAfile: /etc/ssl/certs/ca-certificates.crt
  CApath: /etc/ssl/certs
* SSLv3, TLS handshake, Client hello (1):
* SSLv3, TLS handshake, Server hello (2):
* SSLv3, TLS handshake, CERT (11):
* SSLv3, TLS alert, Server hello (2):
* SSL certificate problem: unable to get local issuer certificate
* Closing connection 0
curl: (60) SSL certificate problem: unable to get local issuer certificate
More details here: http://curl.haxx.se/docs/sslcerts.html

curl performs SSL certificate verification by default, using a "bundle"
 of Certificate Authority (CA) public keys (CA certs). If the default
 bundle file isn't adequate, you can specify an alternate file
 using the --cacert option.
If this HTTPS server uses a certificate signed by a CA represented in
 the bundle, the certificate verification probably failed due to a
 problem with the certificate (it might be expired, or the name might
 not match the domain name in the URL).
If you'd like to turn off curl's verification of the certificate, use
 the -k (or --insecure) option.

当前回答

没有一个答案提到,可能是连接到内部vpn的角色,我以前遇到过这个问题,并要求在专用网络上

其他回答

我在Wordpress安装上试图通过ElasticPress和AWS ACM PCA管理的自签名根CA与内部ElasticSearch服务通信,已经为这个问题困扰了几天。

在我的特殊情况下,我从默认的cURL传输以及预期的正文中收到了200 OK响应,但Wordpress返回了一个WP_Error对象,ElasticPress由于这个证书问题而获得,但从未记录。

说到Wordpress,有两件事值得注意:

The default cURL Transport for all wp_remote_* calls will look to a CA Bundle located in wp-includes/certificates/ca-bundle.crt. This bundle serves largely the same purpose as what's found under https://curl.haxx.se/docs/caextract.html, and will cover most use-cases that don't typically involve more exotic setups. Action/Filter order matters in Wordpress, and in ElasticPress' case, many of its own internal functions leverage these remote calls. The problem is, these remote calls were being executed during the plugins_loaded lifecycle, which is too early for Theme logic to be able to override. If you're using any plugins that make external calls out to other services and you need to be able to modify the requests, you should take careful note as to WHEN these plugins are performing these requests.

这意味着,即使在主题中定义了正确的服务器设置、钩子、回调和逻辑,你仍然可能以一个坏的设置结束,因为底层插件调用在主题加载之前执行得很好,并且永远无法告诉Wordpress关于新证书的信息。

在Wordpress应用程序中,我知道只有两种方法可以在不更新核心或第三方代码逻辑的情况下规避这个问题:

(推荐)添加一个“必须使用”插件到您的安装,调整您需要的设置。MU插件是Wordpress生命周期中最早加载的,可以让你在不直接改变它们的情况下覆盖你的插件和核心。在我的例子中,我用下面的逻辑建立了一个简单的MU插件:

// ep_pre_request_args is an ElasticPress-specific call that we need to adjust for all outbound HTTP requests
add_filter('ep_pre_request_args', function($args){
    if($_ENV['ELASTICSEARCH_SSL_PATH'] ?? false) {
        $args['sslcertificates'] = $_ENV['ELASTICSEARCH_SSL_PATH'];
    }
    return $args;
});

(不推荐)如果你实在没有其他选择,你也可以将根CA附加到wp-includes/certificates/ CA -bundle.crt。这似乎会“纠正”潜在的问题,你将得到正确的SSL证书验证,但这种方法将失败每次更新Wordpress,除非你添加额外的自动化。

我添加这个答案是因为在我甚至懒得深入研究插件源代码之前,我已经认为我在我的设置中做了一些错误或不稳定的事情。希望这可以为正在做类似事情的人节省一些时间。

以我为例,在我试图用cURL使用的服务上安装我的证书时出现了问题。我未能将中间证书和根证书捆绑/连接到我的域证书。一开始并没有明显的问题,因为Chrome解决了这个问题并接受了证书,尽管省略了中间证书和根证书。

在捆绑证书之后,一切都按预期工作。我捆扎成这样

$ cat intermediate.crt >> domain.crt

并对所有中间证书和根证书重复。

关于“SSL证书问题:无法获得本地颁发者证书”错误。需要注意的是,这适用于发送CURL请求的系统,而不是接收请求的服务器。

Download the latest cacert.pem from https://curl.se/ca/cacert.pem Add the '--cacert /path/to/cacert.pem' option to the curl command to tell curl where the local Certificate Authority file is. (or) Create or add to a '.curlrc' file the line: cacert = /path/to/cacert.pem See 'man curl', the section about the '-K, --config <file>' section for information about where curl looks for this file. (or if using php) Add the following line to php.ini: (if this is shared hosting and you don't have access to php.ini then you could add this to .user.ini in public_html).

卷毛。cainfo = " - path / to / downloaded cacert pem。”

请确保将路径用双引号括起来!!

默认情况下,FastCGI进程将每300秒解析一次新文件(如果需要,您可以通过添加几个文件来改变频率https://ss88.uk/blog/fast-cgi-and-user-ini-files-the-new-htaccess/)。

由于conda环境,一些系统可能存在此问题。如果你安装了conda,那么禁用它可以解决你的问题。在我的情况下,当我停用conda时,这个curl-SSL错误得到了解决。在ubuntu或MacOS上试试这个命令

conda deactivate

这很可能是服务器上丢失的证书。

根- >中间- >服务器

服务器至少应该发送服务器和中间体。

使用openssl s_client -showcerts -starttls ftp -crlf -connect abc:21进行调试。

如果只返回一个证书(自签名或颁发),那么您必须选择:

修复服务器 信任该证书并将其添加到您的CA证书存储(不是最好的主意) 禁用信任,例如curl -k(非常糟糕的主意)

如果服务器返回多个,但不包括自签名(根)证书:

在此链的CA存储中安装CA(根)证书,例如谷歌颁发者。(只有当你信任该CA时) 服务器是否将CA作为链的一部分发送 信任链中的证书 禁用的信任

如果服务器返回一个根CA证书,那么它不在您的CA存储中,您的选项是:

添加(信任)它 禁用的信任

我忽略了过期/撤销的证书,因为没有消息表明它。但是您可以使用openssl x509 -text检查certs

假设您正在连接到家庭版(https://www.cerberusftp.com/support/help/installing-a-certificate/) ftp服务器,我将说它是自签名的。

请发布更多细节,比如来自openssl的输出。