ubuntu 16.04.3 apache2 php5.6-curl not support ssl but curl-config --feature say support

[Arthur Tam]

Dear all, I have a problem in accessing https url using curl in php but ok in CLI My environment: ubuntu server 16.04.3 dpkg --list | grep -i curl output: ii  curl                                7.47.0-1ubuntu2.3                                        amd64        command line tool for transferring data with URL syntax ii  libcurl3:amd64                      7.47.0-1ubuntu2.3                                        amd64        easy-to-use client-side URL transfer library (OpenSSL flavour) ii  libcurl3-gnutls:amd64               7.47.0-1ubuntu2.3                                        amd64        easy-to-use client-side URL transfer library (GnuTLS flavour) ii  php-curl                            1:7.1+55+ubuntu16.04.1+deb.sury.org+1                    all          CURL module for PHP [default] ii  php5.6-curl                         5.6.31-6+ubuntu16.04.1+deb.sury.org+1                    amd64        CURL module for PHP ii  php7.0-curl                         7.0.24-1+ubuntu16.04.1+deb.sury.org+1                    amd64        CURL module for PHP ii  php7.1-curl                         7.1.10-1+ubuntu16.04.1+deb.sury.org+1                    amd64        CURL module for PHP ii  python3-pycurl                      7.43.0-1ubuntu1                                          amd64        Python bindings to libcurl (Python 3) curl -V curl 7.47.0 (x86_64-pc-linux-gnu) libcurl/7.47.0 GnuTLS/3.4.10 zlib/1.2.8 libidn/1.32 librtmp/2.3 Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtmp rtsp smb smbs smtp smtps telnet tftp Features: AsynchDNS IDN IPv6 Largefile GSS-API Kerberos SPNEGO NTLM NTLM_WB SSL libz TLS-SRP UnixSockets php -i output (curl portion): curl cURL support => enabled cURL Information => 7.47.0 Age => 3 Features AsynchDNS => No CharConv => No Debug => No GSS-Negotiate => No IDN => No IPv6 => Yes krb4 => No Largefile => Yes libz => No NTLM => No NTLMWB => No SPNEGO => No SSL => No SSPI => No TLS-SRP => No Protocols => dict, file, ftp, gopher, http, imap, pop3, rtsp, smtp, telnet, tftp Host => x86_64-pc-linux-gnu apache2 is loaded with php5.6 module What I tried - upgrade ubuntu to 16.04.3 and reboot but still not work - reinstall apache2, curl, libcurl3, libcurl3-gnutls, php5.6 but still not work Problem history - at the very beginning, curl -V output with NSS instead of GnuTLS and I can't access https by curl in shell with this error: curl --cert-status -v https://fcm.googleapis.com/fcm/send *   Trying 216.58.221.106... * Connected to fcm.googleapis.com (216.58.221.106) port 443 (#0) * Initializing NSS with certpath: sql:/etc/pki/nssdb * WARNING: failed to load NSS PEM library libnsspem.so. Using OpenSSL PEM certificates will not work. * Closing connection 0 curl: (77) Problem with the SSL CA cert (path? access rights?) after I upgrade ubuntu to 16.04.3, I type "which curl" in shell and I found it is running /usr/local/bin/curl but not /usr/bin/curl, so I make "ln -s /usr/bin/curl /usr/local/bin/curl" and I can run curl to access https in shell, however, curl in php not support https and so I can't access https using curl in php Question Could any one tell me what I can do to solve the issue? Thanks in advance for any reply. -- Rgds, Arthur

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