marcin@thinker:~$ openssl s_client -connect www.facebook.com:443
CONNECTED(00000003)
depth=0 /C=US/ST=WA/L=Seattle/O=MyCompany/OU=IT/CN=localhost.localdomain/emailAddress=root@localhost.localdomain
verify error:num=18:self signed certificate
verify return:1
depth=0 /C=US/ST=WA/L=Seattle/O=MyCompany/OU=IT/CN=localhost.localdomain/emailAddress=root@localhost.localdomain
verify return:1
---
Certificate chain
0 s:/C=US/ST=WA/L=Seattle/O=MyCompany/OU=IT/CN=localhost.localdomain/emailAddress=root@localhost.localdomain
i:/C=US/ST=WA/L=Seattle/O=MyCompany/OU=IT/CN=localhost.localdomain/emailAddress=root@localhost.localdomain
---
Server certificate
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
subject=/C=US/ST=WA/L=Seattle/O=MyCompany/OU=IT/CN=localhost.localdomain/emailAddress=root@localhost.localdomain
issuer=/C=US/ST=WA/L=Seattle/O=MyCompany/OU=IT/CN=localhost.localdomain/emailAddress=root@localhost.localdomain
---
No client certificate CA names sent
---
SSL handshake has read 828 bytes and written 300 bytes
---
New, TLSv1/SSLv3, Cipher is RC4-MD5
Server public key is 1024 bit
Compression: NONE
Expansion: NONE
SSL-Session:
Protocol  : TLSv1
Cipher    : RC4-MD5
Session-ID: CAC6A9CAD9A42D1A3F36DCDEEF44AE0287B906A9A583A59A4031DCDEE2237488
Session-ID-ctx:
Master-Key: 8A6E23781CED7B896E82DC61C885957E4E7C3AB522EB8E35762BCA5BA320A48C26638A4D98E257C49067743F37F343B1
Key-Arg   : None
Start Time: 1231654173
Timeout   : 300 (sec)
Verify return code: 18 (self signed certificate)
---
read:errno=104