QuoteNet::FTP=GLOB(0x5610fe4f0290)>>> AUTH TLS
Net::FTP=GLOB(0x5610fe4f0290)<<< 234 AUTH TLS successful
DEBUG: .../IO/Socket/SSL.pm:787: ssl handshake not started
DEBUG: .../IO/Socket/SSL.pm:829: using SNI with hostname zielurl_.de
DEBUG: .../IO/Socket/SSL.pm:864: request OCSP stapling
DEBUG: .../IO/Socket/SSL.pm:3158: get_session(zielurl_.de) -> none
DEBUG: .../IO/Socket/SSL.pm:880: set socket to non-blocking to enforce timeout=60
DEBUG: .../IO/Socket/SSL.pm:894: call Net::SSLeay::connect
DEBUG: .../IO/Socket/SSL.pm:897: done Net::SSLeay::connect -> -1
DEBUG: .../IO/Socket/SSL.pm:907: ssl handshake in progress
DEBUG: .../IO/Socket/SSL.pm:917: waiting for fd to become ready: SSL wants a read first
DEBUG: .../IO/Socket/SSL.pm:937: socket ready, retrying connect
DEBUG: .../IO/Socket/SSL.pm:894: call Net::SSLeay::connect
DEBUG: .../IO/Socket/SSL.pm:2864: ok=1 [2] /C=BE/O=GlobalSign nv-sa/OU=Root CA/CN=GlobalSign Root CA/C=BE/O=GlobalSign nv-sa/OU=Root CA/CN=GlobalSign Root CA
DEBUG: .../IO/Socket/SSL.pm:2864: ok=1 [1] /C=BE/O=GlobalSign nv-sa/OU=Root CA/CN=GlobalSign Root CA/C=BE/O=GlobalSign nv-sa/CN=AlphaSSL CA - SHA256 - G2
DEBUG: .../IO/Socket/SSL.pm:2864: ok=1 [0] /C=BE/O=GlobalSign nv-sa/CN=AlphaSSL CA - SHA256 - G2/CN=*.url_vom_hoster_.de
DEBUG: .../IO/Socket/SSL.pm:1840: scheme=ftp cert=94630986491056
DEBUG: .../IO/Socket/SSL.pm:1850: identity=zielurl_.de cn=*.url_vom_hoster_.de alt=2 *.url_vom_hoster_.de 2 url_vom_hoster_.de
DEBUG: .../IO/Socket/SSL.pm:2865: local error: hostname verification failed
DEBUG: .../IO/Socket/SSL.pm:897: done Net::SSLeay::connect -> -1
DEBUG: .../IO/Socket/SSL.pm:900: SSL connect attempt failed
DEBUG: .../IO/Socket/SSL.pm:900: ignoring less severe local error 'SSL connect attempt failed error:1416F086:SSL routines:tls_process_server_certificate:certificate verify failed', keep 'hostname verification failed'
DEBUG: .../IO/Socket/SSL.pm:903: fatal SSL error: hostname verification failed
FEHLER: AUTH TLS successful
DEBUG: .../IO/Socket/SSL.pm:3059: free ctx 94630984717792 open=94630984717792
DEBUG: .../IO/Socket/SSL.pm:3063: free ctx 94630984717792 callback
DEBUG: .../IO/Socket/SSL.pm:3070: OK free ctx 94630984717792
DEBUG: .../IO/Socket/SSL.pm:1850: identity=zielurl_.de cn=*.url_vom_hoster_.de alt=2 *.url_vom_hoster_.de 2 url_vom_hoster_.de
https://metacpan.org/pod/IO::Socket::SSL#Essential-Information-About-SSL/TLSWhen connecting to a server this is usually done by comparing the hostname used for connecting against the names represented in the certificate. A certificate might contain multiple names or wildcards, so that it can be used for multiple hosts (e.g. *.example.com and *.example.org).