search for: cipherlists

Displaying 12 results from an estimated 12 matches for "cipherlists".

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2018 Dec 16
5
ssh_dh?
Don't know if this was corrected in 2.3.4 (haven't upgraded yet but didn't see it in the notes) - but in 2.3.3 I see this in my log: imap-login: Error: Diffie-Hellman key exchange requested, but no DH parameters provided. Set ssh_dh=</path/to/dh.pem So...either there's an undocumented feature of SSH-over-IMAP (that's Dovecot - always on the cutting edge!) or someone had
2017 Apr 14
4
several misc questions, public folders and sharing, quota, ssl
Hello, I'm running dovecot 2.29 on a freebsd 10.3 system. I'm wanting to optimize how the system is running and have a few misc questions. First ssl, is my cipher list good? I'm trying for pfs and wanting to ensure these cipherlist is appropriate: ssl_cipher_list = EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH Next, a new feature that I'm trying for is virtual folders that
2020 May 31
5
I can no longer use TLS for Windows7 and Outlook
I currently use Ubuntu 20.04 with Dovecot 2.3.7.2 and OpenSSL 1.1.1f. A few months ago there was an update to all these systems and since then I've had to talk W7 and old Mac clients through disabling ports 993/995 with TLS enabled back to ports 143/110 without SSL or they could not pick up email. Thunderbird users (ie; me) were unaffected. Could anyone share a set of port 993/995 SSL
2018 Dec 17
0
ssh_dh?
<!doctype html> <html> <head> <meta charset="UTF-8"> </head> <body> <div> <br> </div> <blockquote type="cite"> <div> On 17 December 2018 at 00:30 Daniel Miller via dovecot < <a href="mailto:dovecot@dovecot.org">dovecot@dovecot.org</a>> wrote: </div>
2020 May 31
0
I can no longer use TLS for Windows7 and Outlook
...</div> </blockquote> <div> <br> </div> <div> ssl_min_protocol = TLSv1.0 </div> <div> ssl_ciphers = ALL:!LOW:!SSLv2:!EXP:!aNULL </div> <div> <br> </div> <div> if this works try tuning cipherlists to more secure value. </div> <div> <br> </div> <div> --- </div> <div class="io-ox-signature"> <pre>Aki Tuomi</pre> </div> </body> </html>
2020 May 31
1
I can no longer use TLS for Windows7 and Outlook
...n7 and up. >> >> Yes I know Win7 is no longer supported but that does not help the 100s >> of older users I have that can't/won't upgrade their computers. > > ssl_min_protocol = TLSv1.0 > ssl_ciphers = ALL:!LOW:!SSLv2:!EXP:!aNULL > > if this works try tuning cipherlists to more secure value. > > --- > Aki Tuomi Since you mention the newest Ubuntu version, it may (most likely) be necessary to enable TLS 1.0 / 1.1 in openssl as well. I ran into this with Debian 10 some time ago. /etc/ssl/openssl.conf [system_default_sect] -MinProtocol = TLSv1.2 +MinPr...
2018 Jan 09
2
openssl question
> but i try to this command > > openssl s_client -connect mail.mydomain:pop3s -starttls imap > > it says CONNECTED and hang. second command is correct? Uh, "pop3s" != "imap", and IMAP/STARTTLS is not the same as IMAP/SSL (or whatever the hell the terminology is nowadays). If you're testing IMAP, try one or the other or both depending of how many flavours
2017 Apr 14
2
several misc questions, public folders and sharing, quota, ssl
Hi Aki, Thanks for your reply. Sorry, hit the reply to and not the reply to all option. So, even when a folder is a public folder I'm still needing to use the acl plugin? The public/TestFolder is showing up, the public/TestFolder1 is not. Thanks. Dave. On 4/14/17, Aki Tuomi <aki.tuomi at dovecot.fi> wrote: > Please keep responses on the list. Thank you. =) > > Without ACL
2015 Jul 04
1
sendmail tls and oppenssl
Am 04.07.2015 um 15:34 schrieb Gregory P. Ennis <PoMec at PoMec.Net>: > On Sat, 2015-07-04 at 08:07 -0500, Gregory P. Ennis wrote: >> Everyone, >> >> Looks like the new version of oppenssl has broken my sendmail's use >> of >> tls. Has anyone else had this problem or seen a fix? >> >> Greg Ennis >>
2023 Aug 17
21
[Bug 3603] New: ssh clients can't communicate with server with default cipher when fips is enabled at server end
https://bugzilla.mindrot.org/show_bug.cgi?id=3603 Bug ID: 3603 Summary: ssh clients can't communicate with server with default cipher when fips is enabled at server end Product: Portable OpenSSH Version: 9.4p1 Hardware: All OS: Linux Status: NEW Severity: critical
2017 Apr 14
0
several misc questions, public folders and sharing, quota, ssl
Please keep responses on the list. Thank you. =) Without ACL plugin there is no way to restrict access, it's free for all. my site is a very tiny few user site, but ... auth_mechanisms = login plain mail_attribute_dict = file:%h/Mail/dovecot-attributes mail_location = sdbox:~/Mail mail_plugins = stats quota fts fts_lucene namespace inbox { inbox = yes list = yes location = mailbox
2017 Apr 14
0
several misc questions, public folders and sharing, quota, ssl
Can you try turning mail_debug=yes and posting logs? Also if possible, can you try telnetting to the server and issuing a LOGIN username password a SELECT public/TestFolder1 with debug turned on? ACL plugin is needed *iff* you want to *restrict* access. Aki > On April 14, 2017 at 11:53 PM David Mehler <dave.mehler at gmail.com> wrote: > > > Hi Aki, > > Thanks for