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

根据cURL文档,您还可以将证书传递给cURL命令:

获取可以验证远程服务器的CA证书并使用 适当的选项指出此CA证书进行验证时 连接。对于libcurl黑客:curl_easy_setopt(curl, CURLOPT_CAPATH capath); 使用curl命令行工具:——cacert[文件]


例如:

curl --cacert mycertificate.cer -v https://www.stackoverflow.com

其他回答

安装Git Extensions v3.48后出现这个问题。尝试再次安装mysysgit,但同样的问题。最后,不得不禁用(请考虑安全隐患!)Git SSL验证:

git config --global http.sslVerify false

但如果你有一个域证书,最好将其添加到(Win7)

C:\Program Files (x86)\Git\bin\curl-ca-bundle.crt

到目前为止,我看到这个问题在公司网络中发生,有两个原因,其中一个或两个都可能发生在你的情况中:

由于网络代理的工作方式,它们有自己的SSL证书,从而改变了curl看到的证书。许多或大多数企业网络强制您使用这些代理。 在客户端电脑上运行的一些防病毒程序也类似于HTTPS代理,这样它们就可以扫描你的网络流量。您的防病毒程序可能有禁用此功能的选项(假设您的管理员允许)。

作为旁注,上面的第2条可能会让您对被扫描的本应安全的TLS通信感到不安。这就是你的公司世界。

特别对于Windows用户,使用curl-7.57.0-win64-mingw或类似版本。

这有点晚了,现有的答案是正确的。但我还是得费点劲才能让它在我的Windows电脑上运行,不过这个过程其实相当简单。所以,分享一步一步的过程。

这个错误基本上意味着,curl无法验证目标URI的证书。如果您信任证书的颁发者(CA),则可以将其添加到受信任证书列表。

为此,浏览URI(例如在Chrome上)并遵循步骤

Right click on the secure padlock icon Click on certificate, it'll open a window with the certificate details Go to 'Certification Path' tab Click the ROOT certificate Click View Certificate, it'll open another certificate window Go to Details tab Click Copy to File, it'll open the export wizard Click Next Select 'Base-64 encoded X.509 (.CER)' Click Next Give a friendly name e.g. 'MyDomainX.cer' (browse to desired directory) Click Next Click Finish, it'll save the certificate file Now open this .cer file and copy the contents (including -----BEGIN CERTIFICATE----- and -----END CERTIFICATE-----) Now go to the directory where curl.exe is saved e.g. C:\SomeFolder\curl-7.57.0-win64-mingw\bin Open the curl-ca-bundle.crt file with a text editor Append the copied certificate text to the end of the file. Save

现在,您的命令应该在curl中正常执行。

对我来说,简单地安装证书有帮助:

sudo apt-get install ca-certificates

我本想评论Yuvik的回答,但我缺乏足够的声誉点。

当您将.crt文件导入到/usr/share/local/ca-certificates时,需要使用正确的格式。其中一些已经在前面提到过,但是还没有人提到只需要一个新的行字符,也没有人收集过清单,所以我想在这里提供一个清单。

The certificate needs to end in .crt. From Ubuntu's man page: Certificates must have a .crt extension in order to be included by update-ca-certificates Certificate files in /usr/local/share/ca-certificates can only contain one certificate Certificate files must end in a newline. update-ca-certificates will appear to work if each row contains, for example, a carriage return + a newline (as is standard in Windows), but once the certificate is appended to /etc/ssl/ca-certificates.crt, it still will not work. This specific requirement bit me as we're loading certificates from an external source.