Hi. I have in mail.err file lines like below: Nov 5 08:40:00 s1 dovecot: imap-login: Error: SSL: Stacked error: error:1407609C:SSL routines:SSL23_GET_CLIENT_HELLO:http request Nov 5 08:40:00 s1 dovecot: imap-login: Error: SSL: Stacked error: error:1408A10B:SSL routines:ssl3_get_client_hello:wrong version number Nov 5 08:40:05 s1 dovecot: pop3-login: Error: SSL: Stacked error: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol Nov 5 08:43:07 s1 dovecot: pop3-login: Error: SSL: Stacked error: error:1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher Nov 5 08:53:31 s1 dovecot: pop3-login: Error: SSL: Stacked error: error:14094085:SSL routines:ssl3_read_bytes:ccs received early What do the above mean? I suppose that somebody tries connect but uses too old/weak ssl version. -- *Pozdrawiam / Best Regards* *Piotr Bracha* -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://dovecot.org/pipermail/dovecot/attachments/20181105/a299a93e/attachment-0001.html>
On 5.11.2018 10.05, Poliman - Serwis wrote:> Hi. I have in mail.err file lines like below: > Nov 5 08:40:00 s1 dovecot: imap-login: Error: SSL: Stacked error: error:1407609C:SSL routines:SSL23_GET_CLIENT_HELLO:http request > Nov 5 08:40:00 s1 dovecot: imap-login: Error: SSL: Stacked error: error:1408A10B:SSL routines:ssl3_get_client_hello:wrong version number > Nov 5 08:40:05 s1 dovecot: pop3-login: Error: SSL: Stacked error: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol > Nov 5 08:43:07 s1 dovecot: pop3-login: Error: SSL: Stacked error: error:1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher > Nov 5 08:53:31 s1 dovecot: pop3-login: Error: SSL: Stacked error: error:14094085:SSL routines:ssl3_read_bytes:ccs received early > What do the above mean? I suppose that somebody tries connect but uses > too old/weak ssl version. > > -- > /Pozdrawiam / Best Regards > / > /Piotr Bracha/That's what it means, mostly. Could also be a probe of some sort. Aki -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://dovecot.org/pipermail/dovecot/attachments/20181105/b5a998af/attachment.html>
Thank you. Can I do something with this? 2018-11-05 9:11 GMT+01:00 Aki Tuomi <aki.tuomi at open-xchange.com>:> > On 5.11.2018 10.05, Poliman - Serwis wrote: > > Hi. I have in mail.err file lines like below: > > Nov 5 08:40:00 s1 dovecot: imap-login: Error: SSL: Stacked error: error:1407609C:SSL routines:SSL23_GET_CLIENT_HELLO:http request > > Nov 5 08:40:00 s1 dovecot: imap-login: Error: SSL: Stacked error: error:1408A10B:SSL routines:ssl3_get_client_hello:wrong version number > > Nov 5 08:40:05 s1 dovecot: pop3-login: Error: SSL: Stacked error: error:140760FC:SSL routines:SSL23_GET_CLIENT_HELLO:unknown protocol > > Nov 5 08:43:07 s1 dovecot: pop3-login: Error: SSL: Stacked error: error:1408A0C1:SSL routines:ssl3_get_client_hello:no shared cipher > > Nov 5 08:53:31 s1 dovecot: pop3-login: Error: SSL: Stacked error: error:14094085:SSL routines:ssl3_read_bytes:ccs received early > > What do the above mean? I suppose that somebody tries connect but uses too > old/weak ssl version. > > -- > > *Pozdrawiam / Best Regards * > *Piotr Bracha* > > > That's what it means, mostly. Could also be a probe of some sort. > > Aki >-- *Pozdrawiam / Best Regards* *Piotr Bracha* -------------- next part -------------- An HTML attachment was scrubbed... URL: <https://dovecot.org/pipermail/dovecot/attachments/20181105/4a597ec3/attachment.html>