similar to: SSL Compatibility? SNI vs SAN (Subject Alternative Names) and multiple domains

Hi I have some problem with SNI and dovecot 2.2.36.4 Server debian 9.x ad dovecot-2.2.36.4 default server ssl cert is a wildcard like *.domain.com (digicert) ssl_ca = /var/control/cert.pem ssl_cert = </var/control/cert.pem I added for test another domain (in dns to) for another ssl (letsencrypt) from https://wiki.dovecot.org/SSL/DovecotConfiguration like: local_name

Sure, and thanks for trying to help! These are the two correct answers when SNI is included. The certificates are fully chained. Both certificates carry the same subject mail.cs.sbg.ac.at but differ in Subject Alternative Name (SAN). X509v3 Subject Alternative Name:? ? DNS:mail.cs.sbg.ac.at, DNS:smtp.cs.sbg.ac.at, DNS:imap.cs.sbg.ac.at, DNS:pop.cs.sbg.ac.at X509v3 Subject Alternative Name:? ?

Hi, I recognised some funny behaviour on my server. IMAP clients which won't send an Server Name Indication (SNI) sometimes get the wrong certificate. I would expect that those clients always get the default certificate (of my new domain), instead in about 20 to 50% of connections the certificate of my old domain will be presented. (sample rate was 3 times 30 connections) Clients sending SNI

Dovecot SNI is failing hard today. Server with n domains, each with a startssl certificate of its own, all certificates expired this morning. Decision: move to Letsencrypt. Firsr certificate issued and installed. Other domains in the pipeline. Dovecot server rebooted. Expected result: one domain returning the new cert, and the n-1 domains returning the expiration notification. Actual result: the

Can you provide some details on what those openssl commands returned? Aki On 20.07.2018 12:14, Martin Johannes Dauser wrote: > Hi, > > I recognised some funny behaviour on my server. IMAP clients which > won't send an Server Name Indication (SNI) sometimes get the wrong > certificate. I would expect that those clients always get the default > certificate (of my new

-----BEGIN PGP SIGNED MESSAGE----- ##### ## ## ###### ## ### ## ## ##### ## # ## ## ## ## ### ## ##### . ## ## . ###### . Secure Networks Inc. Security Advisory

FYI? dovecot 2.2.10 from RedHat 7 has an issue with clients, which won't send SNI.?As you are using version 2.2.27 you might encounter the same behaviour. If the client won't send SNI, my server randomly answers with any cert instead of?the default cert,? --Perhaps dovecot just utilises the last used cert? One speciality?of my certs is, that both share the same Common Name (CN) but differ

On Thursday 20 of October 2016, Aki Tuomi wrote: > On 20.10.2016 15:41, Arkadiusz Mi?kiewicz wrote: > > On Thursday 20 of October 2016, Aki Tuomi wrote: > >> On 18.10.2016 14:16, Arkadiusz Mi?kiewicz wrote: > >>> On Monday 17 of October 2016, KT Walrus wrote: > >>>>> On Oct 17, 2016, at 2:41 AM, Arkadiusz Mi?kiewicz <arekm at maven.pl> >

Hi All, I''ve run into a bit of a tangle. I currently have two puppet masters which are "load balanced" with round robin DNS (one is also the CA). I''m using dns_alt_names to let them each answer to puppet.my.domain.com For the past year this has been fine. About a week ago I tried to add a third & while all my Linux clients are happy with the new arrangement,

On Monday 17 of October 2016, KT Walrus wrote: > > On Oct 17, 2016, at 2:41 AM, Arkadiusz Mi?kiewicz <arekm at maven.pl> wrote: > > > > On Monday 30 of May 2016, Arkadiusz Mi?kiewicz wrote: > >> Is there a way to log SNI hostname used in TLS session? Info is there in > >> SSL_CTX_set_tlsext_servername_callback, dovecot copies it to > >>

On Thursday 20 of October 2016, Aki Tuomi wrote: > On 18.10.2016 14:16, Arkadiusz Mi?kiewicz wrote: > > On Monday 17 of October 2016, KT Walrus wrote: > >>> On Oct 17, 2016, at 2:41 AM, Arkadiusz Mi?kiewicz <arekm at maven.pl> > >>> wrote: > >>> > >>> On Monday 30 of May 2016, Arkadiusz Mi?kiewicz wrote: > >>>> Is there

On Friday 11 of November 2016, Felipe Gasper wrote: > Hello, > > We?re rolling out large SNI deployments for our mail servers. Each domain > gets an entry like this in the config: > > local_name mail.foo.com { > ssl_cert = </ssl/domain_tls/*.foo.com/combined > ssl_key = </ssl/domain_tls/*.foo.com/combined > } Lack of glob/regexp support here is also a

> On November 11, 2016 at 12:22 PM Arkadiusz Mi?kiewicz <arekm at maven.pl> wrote: > > > On Friday 11 of November 2016, Felipe Gasper wrote: > > Hello, > > > > We?re rolling out large SNI deployments for our mail servers. Each domain > > gets an entry like this in the config: > > > > local_name mail.foo.com { > > ssl_cert =

On 20.10.2016 15:41, Arkadiusz Mi?kiewicz wrote: > On Thursday 20 of October 2016, Aki Tuomi wrote: >> On 18.10.2016 14:16, Arkadiusz Mi?kiewicz wrote: >>> On Monday 17 of October 2016, KT Walrus wrote: >>>>> On Oct 17, 2016, at 2:41 AM, Arkadiusz Mi?kiewicz <arekm at maven.pl> >>>>> wrote: >>>>> >>>>> On Monday 30

Hey Thorsten, Thorsten Glaser <t.glaser at tarent.de> writes: > On Sun, 12 Jan 2020, Nico Schottelius wrote: > >> I was wondering what you think about SNI (server name indication) >> support to OpenSSH? > > Oh, please absolutely not. SNI is a privacy violation in HTTP, and > otherwise just a poor excuse to continue running NAT and/or IPv4. you might have

On 18.10.2016 14:16, Arkadiusz Mi?kiewicz wrote: > On Monday 17 of October 2016, KT Walrus wrote: >>> On Oct 17, 2016, at 2:41 AM, Arkadiusz Mi?kiewicz <arekm at maven.pl> wrote: >>> >>> On Monday 30 of May 2016, Arkadiusz Mi?kiewicz wrote: >>>> Is there a way to log SNI hostname used in TLS session? Info is there in >>>>

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> On Oct 17, 2016, at 2:41 AM, Arkadiusz Mi?kiewicz <arekm at maven.pl> wrote: > > On Monday 30 of May 2016, Arkadiusz Mi?kiewicz wrote: >> Is there a way to log SNI hostname used in TLS session? Info is there in >> SSL_CTX_set_tlsext_servername_callback, dovecot copies it to >> ssl_io->host. >> >> Unfortunately I don't see it expanded to any

Is there a way to log SNI hostname used in TLS session? Info is there in SSL_CTX_set_tlsext_servername_callback, dovecot copies it to ssl_io->host. Unfortunately I don't see it expanded to any variables ( http://wiki.dovecot.org/Variables ). Please consider this to be a feature request. The goal is to be able to see which hostname client used like: May 30 08:21:19 xxx dovecot:

Hello, Pure-FTPd just adopted an interesting approach to SNI support: a separate daemon that serves cert chain and key for a given hostname. What would be involved in having Dovecot support this daemon? It would alleviate the need right now for a very large ?sni.conf? file on hosts that serve thousands of domains. Thank you! -Felipe Gasper Mississauga, ON