Testing SSL Connections With Dovecot
Testing the SSL Connections
# openssl s_client -connect localhost:993
CONNECTED(00000003)
depth=0 /OU=IMAP server/CN=imap.example.com/emailAddress=postmaster@example.com
verify error:num=18:self signed certificate
verify return:1
depth=0 /OU=IMAP server/CN=imap.example.com/emailAddress=postmaster@example.com
verify return:1
—
Certificate chain
0 s:/OU=IMAP server/CN=imap.example.com/emailAddress=postmaster@example.com
i:/OU=IMAP server/CN=imap.example.com/emailAddress=postmaster@example.com
—
Server certificate
—–BEGIN CERTIFICATE—–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—–END CERTIFICATE—–
subject=/OU=IMAP server/CN=imap.example.com/emailAddress=postmaster@example.com
issuer=/OU=IMAP server/CN=imap.example.com/emailAddress=postmaster@example.com
—
No client certificate CA names sent
—
SSL handshake has read 1147 bytes and written 340 bytes
—
New, TLSv1/SSLv3, Cipher is DHE-RSA-AES256-SHA
Server public key is 1024 bit
Compression: NONE
Expansion: NONE
SSL-Session:
Protocol : TLSv1
Cipher : DHE-RSA-AES256-SHA
Session-ID: 6828F13357DE7E3F7D488E28ED371724E57E8E645ECD6913ED00F0BAAD32C336
Session-ID-ctx:
Master-Key: 38DE76160DB9306EC347DB9047D9CA67E2CF507A1B0893E34991C0622EA633F873B5FCB6AE6A054A9702266FA7F13FD0
Key-Arg : None
Krb5 Principal: None
Start Time: 1190798551
Timeout : 300 (sec)
Verify return code: 18 (self signed certificate)
—
OK Dovecot ready.
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