| Long: cacert |
| Arg: <file> |
| Help: CA certificate to verify peer against |
| Protocols: TLS |
| --- |
| Tells curl to use the specified certificate file to verify the peer. The file |
| may contain multiple CA certificates. The certificate(s) must be in PEM |
| format. Normally curl is built to use a default file for this, so this option |
| is typically used to alter that default file. |
| |
| curl recognizes the environment variable named 'CURL_CA_BUNDLE' if it is |
| set, and uses the given path as a path to a CA cert bundle. This option |
| overrides that variable. |
| |
| The windows version of curl will automatically look for a CA certs file named |
| \'curl-ca-bundle.crt\', either in the same directory as curl.exe, or in the |
| Current Working Directory, or in any folder along your PATH. |
| |
| If curl is built against the NSS SSL library, the NSS PEM PKCS#11 module |
| (libnsspem.so) needs to be available for this option to work properly. |
| |
| (iOS and macOS only) If curl is built against Secure Transport, then this |
| option is supported for backward compatibility with other SSL engines, but it |
| should not be set. If the option is not set, then curl will use the |
| certificates in the system and user Keychain to verify the peer, which is the |
| preferred method of verifying the peer's certificate chain. |
| |
| (Schannel only) This option is supported for Schannel in Windows 7 or later with |
| libcurl 7.60 or later. This option is supported for backward compatibility |
| with other SSL engines; instead it is recommended to use Windows' store of |
| root certificates (the default for Schannel). |
| |
| If this option is used several times, the last one will be used. |
