Newton:salesforce_work tpl$ perl -MIO::Socket::SSL=debug30 Testcase
DEBUG: .../IO/Socket/SSL.pm:2602: new ctx 140688297857808
DEBUG: .../IO/Socket/SSL.pm:542: socket not yet connected
DEBUG: .../IO/Socket/SSL.pm:544: socket connected
DEBUG: .../IO/Socket/SSL.pm:566: ssl handshake not started
DEBUG: .../IO/Socket/SSL.pm:608: not using SNI because openssl is too old
DEBUG: .../IO/Socket/SSL.pm:653: set socket to non-blocking to enforce timeout=120
DEBUG: .../IO/Socket/SSL.pm:667: Net::SSLeay::connect -> -1
DEBUG: .../IO/Socket/SSL.pm:677: ssl handshake in progress
DEBUG: .../IO/Socket/SSL.pm:687: waiting for fd to become ready: SSL wants a read first
DEBUG: .../IO/Socket/SSL.pm:707: socket ready, retrying connect
DEBUG: .../IO/Socket/SSL.pm:667: Net::SSLeay::connect -> -1
DEBUG: .../IO/Socket/SSL.pm:677: ssl handshake in progress
DEBUG: .../IO/Socket/SSL.pm:687: waiting for fd to become ready: SSL wants a read first
DEBUG: .../IO/Socket/SSL.pm:707: socket ready, retrying connect
DEBUG: .../IO/Socket/SSL.pm:667: Net::SSLeay::connect -> -1
DEBUG: .../IO/Socket/SSL.pm:677: ssl handshake in progress
DEBUG: .../IO/Socket/SSL.pm:687: waiting for fd to become ready: SSL wants a read first
DEBUG: .../IO/Socket/SSL.pm:707: socket ready, retrying connect
DEBUG: .../IO/Socket/SSL.pm:2458: ok=0 cert=140688300414128
DEBUG: .../IO/Socket/SSL.pm:667: Net::SSLeay::connect -> -1
DEBUG: .../IO/Socket/SSL.pm:1791: SSL connect attempt failed

DEBUG: .../IO/Socket/SSL.pm:1796: SSL connect attempt failed error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
DEBUG: .../IO/Socket/SSL.pm:673: fatal SSL error: SSL connect attempt failed error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
DEBUG: .../IO/Socket/SSL.pm:1780: IO::Socket::INET6 configuration failed
DEBUG: .../IO/Socket/SSL.pm:2635: free ctx 140688297857808 open=140688297857808
DEBUG: .../IO/Socket/SSL.pm:2640: free ctx 140688297857808 callback
DEBUG: .../IO/Socket/SSL.pm:2647: OK free ctx 140688297857808
500 Can't connect to login.salesforce.com:443 (certificate verify failed)
Can't connect to login.salesforce.com:443 (certificate verify failed)

LWP::Protocol::https::Socket: SSL connect attempt failed error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed at /Library/Perl/5.16/LWP/Protocol/http.pm line 47.