Curl cannot support https

By default, libcurl does not support HTTPS. If you use an HTTPS link"Protocol HTTPS not supported or disabled in libcurl"Error prompt. To check whether curl supports https, run the following command:

Curl-v.

Curl can be used in two ways:

1. Set to not verify the certificate and host

Code = curl_easy_setopt (handle, curlopt_ssl_verifypeer, 0l );

2. Set an SSL Certificate

Http://curl.haxx.se/ca/cacert.pem

You do not know how to use these two methods, so you have to use the most stupid method to reinstall curl:

1.download the curl-7.14.0.tar.gz compressed package. There are many

2. Unzip: # tar-zxvf curl-7.14.0.tar.gz

# Cdcurl-7.14.0

#./Configure note that a message is displayed at the end to indicate whether HTTPS is supported:

  curl version:    7.14.0  Host setup:      x86_64-unknown-linux-gnu  Install prefix:  /usr/local  Compiler:        gcc  SSL support:     no      (--with-ssl / --with-gnutls)  zlib support:    enabled  krb4 support:    no      (--with-krb4*)  GSSAPI support:  no      (--with-gssapi)  SPNEGO support:  no      (--with-spnego)  c-ares support:  no      (--enable-ares)  ipv6 support:    enabled  IDN support:     enabled  Build libcurl:   Shared=yes, Static=yes  Built-in manual: enabled  Verbose errors:  enabled (--disable-verbose)  SSPI support:    no      (--enable-sspi)  ca cert path:    no

The SSL support prompt here is not supported, because the HTTPS protocol is an encrypted and secure HTTP-based protocol and the OpenSSL static library is required. To support https, you must download OpenSSL, here do not repeat, the method is visible: http://www.linuxidc.com/Linux/2011-01/31229.htm

# Vi/etc/lD. So. conf: add the directory where the library file generated by OpenSSL is located and use the command ldconfig to refresh the cache.

#./Configure -- prefix =/usr/local/curl -- With-SSL =/usr/local/SSL. Pay attention to the last section.

  curl version:    7.14.0  Host setup:      x86_64-unknown-linux-gnu  Install prefix:  /usr/local  Compiler:        gcc  SSL support:     enabled (OpenSSL)  zlib support:    enabled  krb4 support:    no      (--with-krb4*)  GSSAPI support:  no      (--with-gssapi)  SPNEGO support:  no      (--with-spnego)  c-ares support:  no      (--enable-ares)  ipv6 support:    enabled  IDN support:     enabled  Build libcurl:   Shared=yes, Static=yes  Built-in manual: enabled  Verbose errors:  enabled (--disable-verbose)  SSPI support:    no      (--enable-sspi)  ca cert path:    /usr/local/share/curl/curl-ca-bundle.crt

Prompt that OpenSSL is supported, and then make and make install.

# Curl-V

curl 7.14.0 (x86_64-unknown-linux-gnu) libcurl/7.14.0 OpenSSL/1.0.1e zlib/1.2.3 libidn/1.18Protocols: ftp gopher telnet dict ldap http file https ftps Features: IDN IPv6 Largefile NTLM SSL libz 

It indicates that HTTPS is supported.