On 01/25/2010 02:26 PM, Bob Dye wrote:
Patrick Boutilier wrote:
On 01/25/2010 11:51 AM, Bob Dye wrote:
Patrick Boutilier wrote:
On 01/24/2010 10:39 AM, Bob Dye wrote:
Joseph Brennan wrote:
--On Saturday, January 23, 2010 4:54 PM -0800 Bob Dye
<bobdye@xxxxxxxxxxxxxxxxx> wrote:
I'm running Cyrus-imapd 2.3.7 on a Redhat Enterprise Linux 5 system.
TLS works fine if I connect to the imap port (143). If I try to
connect
instead via the imaps port (993), the attempt times out and I get
the
following in the log:
imaps[27170]: imaps TLS negotiation failed: [xx.xx.xx.xx]
imaps[27170]: Fatal error: tls_start_servertls() failed
Normal. It should fail. 993 requires SSL.
Joseph Brennan
Columbia University Information Technology
----
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993 (the port) does not require SSL. The official IANA definition is
"imap4 protocol over TLS/SSL".
Perhaps you're saying that Cyrus-imapd only supports SSL on 993 for
some
reason?
Assuming you are running imapd -s on port 993, from the man page for
imapd:
-s Serve IMAP over SSL (imaps). All data to and from imapd is
encrypted using the Secure Sockets Layer.
--
Bob Dye
Vintagefactor
<http://www.vintagefactor.com/> <http://www.vintagefactor.com/>
----
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----
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Yes, those are the words on the man page. I am reluctant to simply
accept that as true because:
1. The man page does not say anything about TLS. It is difficult to draw
conclusions from lack of documentation. You might assume that it does
not support TLS at all, but it definitely does. I have seen a number of
cases where software documentation has not been updated to reflect TLS
(vs. SSL).
2. The error message ("imaps TLS negotiation failed") implies that
cyrus-imapd is trying to support TLS and failing. If it supported only
SSL, it would presumably not try TLS.
What IMAP client are you using? Sounds like you are trying to use
STARTTLS.
http://sial.org/howto/openssl/tls-name/
--
Bob Dye
Vintagefactor
<http://www.vintagefactor.com/>
----
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Patrick,
I use Mozilla Thunderbird.
Use SSL/TLS instead of STARTTLS for connection security.
--
Bob Dye
Vintagefactor
<http://www.vintagefactor.com/>
----
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begin:vcard
fn:Patrick Boutilier
n:Boutilier;Patrick
org:;Nova Scotia Department of Education
adr:;;2021 Brunswick Street;Halifax;NS;B3K 2Y5;Canada
email;internet:boutilpj@xxxxxxxxxxx
title:WAN Communications Specialist
tel;work:902-424-6800
tel;fax:902-424-0874
version:2.1
end:vcard
----
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