Hello, >> Is it possible to offer encrypted and non-encrypted services >> simultaneously, so people have a choice of whether they want >> security or not? I know that's a bit weird, but for testing >> it would be useful. > > No problem. Basically you just need to specify the certificate > (ssl_cert_file) and the key (ssl_key_file) in the config, and > add 'imaps' and 'pop3s' to 'protocols'.
Thanks for the advice... however, it has only partially worked. When i "check what the server supports" in Kmail when setting up a new account in my email client, for POP3, it says it supports None, SSL and TLS and defaults to TLS, and auth methods are Clear text and Plain. Is there a way to get rid of the "None" method for encryption? I do not have "pop3" in the protocols line - only "pop3s". As for IMAP, the problem is worse... all i get for IMAP is "No encryption with clear text passwords". SSL/TLS just doesn't seem to be an option for IMAP despite "imaps" being in the protocols line and "imap" *not* being there. For both these tests, rightly or wrongly, i used the standard ports (110 for POP3, 143 for IMAP). I know SSL typically operates on higher ports numbers, at least for IMAP, but I dont' know how this all works when you turn off non-encrypted protocols. Any advice gratefully received! Thanks again, Richard. Patrick Nagel wrote: > Hi Richard, > > On 2009-09-03 16:38, Richard Hobbs wrote: >> Currently, on our new test server, I am offering IMAP on 143 and POP3 on >> 110. > >> We would like to enable security on both of these protocols to attempt >> to eliminate the risk from an internal >> password-grabbing/content-grabbing attack. > >> I presume this would mean enabling SSL, and a more securure >> authentication, right? Or are plain text passwords just sent over the >> SSL, and therefore perfectly secure? > > Yes, plain text passwords are fine with SSL/TLS, since the connection gets > secured before the password is sent. > >> Also, what are the steps to enable security for these protocols on an >> already-configured server? > >> Is it possible to offer encrypted and non-encrypted services >> simultaneously, so people have a choice of whether they want security or >> not? I know that's a bit weird, but for testing it would be useful. > > No problem. Basically you just need to specify the certificate (ssl_cert_file) > and the key (ssl_key_file) in the config, and add 'imaps' and 'pop3s' to > 'protocols'. > >> Finally, is there a way to monitor which users are connecting over the >> secure ports and which users are connecting over the non-secure ports? > > You can see it in the log. > > Patrick. > ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________ -- Richard Hobbs (IT Specialist) Toshiba Research Europe Ltd. - Cambridge Research Laboratory Email: richard.ho...@crl.toshiba.co.uk Web: http://www.toshiba-europe.com/research/ Tel: +44 1223 436999 Mobile: +44 7811 803377
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