$ openssl s_client -connect 192.168.1.17:1988
CONNECTED(00000003)
depth=0 /C=PL/ST=Mazovia Province/L=Warsaw/O=Stunnel Developers/OU=Provisional CA/CN=localhost
verify error:num=18:self signed certificate
verify return:1
depth=0 /C=PL/ST=Mazovia Province/L=Warsaw/O=Stunnel Developers/OU=Provisional CA/CN=localhost
verify error:num=26:unsupported certificate purpose
verify return:1
depth=0 /C=PL/ST=Mazovia Province/L=Warsaw/O=Stunnel Developers/OU=Provisional CA/CN=localhost
verify return:1
---
Certificate chain
 0 s:/C=PL/ST=Mazovia Province/L=Warsaw/O=Stunnel Developers/OU=Provisional CA/CN=localhost
   i:/C=PL/ST=Mazovia Province/L=Warsaw/O=Stunnel Developers/OU=Provisional CA/CN=localhost
---
Server certificate
-----BEGIN CERTIFICATE-----
MIIEAzCCAuugAwIBAgIJAJVtNQsthResMA0GCSqGSIb3DQEBBQUAMIGDMQswCQYD
VQQGEwJQTDEZMBcGA1UECAwQTWF6b3ZpYSBQcm92aW5jZTEPMA0GA1UEBwwGV2Fy
c2F3MRswGQYDVQQKDBJTdHVubmVsIERldmVsb3BlcnMxFzAVBgNVBAsMDlByb3Zp
c2lvbmFsIENBMRIwEAYDVQQDDAlsb2NhbGhvc3QwHhcNMTUxMDA5MDI1MjM2WhcN
MTYxMDA4MDI1MjM2WjCBgzELMAkGA1UEBhMCUEwxGTAXBgNVBAgMEE1hem92aWEg
UHJvdmluY2UxDzANBgNVBAcMBldhcnNhdzEbMBkGA1UECgwSU3R1bm5lbCBEZXZl
bG9wZXJzMRcwFQYDVQQLDA5Qcm92aXNpb25hbCBDQTESMBAGA1UEAwwJbG9jYWxo
b3N0MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAx0NBX/rnPbLt4a4Z
/xudtD+gPOzCvy763gKJWb44gz4Ibl3FLMYSBtPx2CAq8nGXKBvSLEeFhcz+PrKn
1xNUV32NWNdrv5uy2q6iKqrxXNQb+4O6PxlqY0OHUW46Fq9+fW7AjOXTLbPd+ioA
CA+qmsCCYObYhb1MRB2yR9nrMZlE5KDZtPmZ8GbxTL5EV+ZQu64xM8N23B4a01dg
9iqQX33fQf2k3TnzH3kQTSVF0Jsr+IoRLRBZKTtuZJ0ZzbwX9jKjQvSWHCRjP3Wy
0ldN+mQFJyW+EN2roxjK+IXWpFau6qgFu2eRqQfx9DP2i+Jav58wWxqyJMMVKjHG
iWZ7zQIDAQABo3gwdjARBglghkgBhvhCAQEEBAMCBkAwDwYDVR0TBAgwBgEB/wIB
ADALBgNVHQ8EBAMCAgQwEwYDVR0lBAwwCgYIKwYBBQUHAwEwLgYJYIZIAYb4QgEN
BCEWH3N0dW5uZWwgc2VsZi1zaWduZWQgY2VydGlmaWNhdGUwDQYJKoZIhvcNAQEF
BQADggEBALe/yYQ6mnSwFhfmKX+qjAlQ+JRueTknlhh+6CZ7e7m7nLLiTiAP4eTn
Z93LewKcaX4+oBeGilVEPfpBS3VaBVpKVlUtKy0Qd+0642q5lubk00ujB0KL30YX
TWDXjLSVt06pCfOJUe67OSLbKZQrs/Yg9fN1fThhRp9e62h4m6gf7PSsv4OjEM0X
w/YuUBUfzucQcaaWCjRtp5gg9ZhEeFkp3VZZoCkbxfdmcH1vxfsLko7IGyIYT0IZ
DDTdzwMx+7W4Sv0QSKL5QA37EMObL+YYO35RjzfYNkWZ1vpm8QyATyKus3vupgfv
hvVwT3AdkkW2qJ7Te96y3wEOEdAcQBc=
-----END CERTIFICATE-----
subject=/C=PL/ST=Mazovia Province/L=Warsaw/O=Stunnel Developers/OU=Provisional CA/CN=localhost
issuer=/C=PL/ST=Mazovia Province/L=Warsaw/O=Stunnel Developers/OU=Provisional CA/CN=localhost
---
No client certificate CA names sent
---
SSL handshake has read 1986 bytes and written 456 bytes
---
New, TLSv1/SSLv3, Cipher is DHE-RSA-AES256-SHA
Server public key is 2048 bit
Secure Renegotiation IS supported
Compression: NONE
Expansion: NONE
SSL-Session:
    Protocol  : TLSv1
    Cipher    : DHE-RSA-AES256-SHA
    Session-ID: C26733EC3049C19D22A88F129144CB81FB423D77ED8D104263B480164DB9D63D
    Session-ID-ctx:
    Master-Key: B02E6AAD5DCEE5A52370F59CE8AD17B149DCBD2FED24F0AB0B04D13370C9D6AC1CD40C4E41E8AC38EC60750C024E55CB
    Key-Arg   : None
    Start Time: 1444387235
    Timeout   : 300 (sec)
    Verify return code: 26 (unsupported certificate purpose)
---