I have multiple domain on my mail server (postfix + dovecot) and I want to assign specific cerificate per domains.
Assuming to the dovecot documentation, I've tried this configuration :
local_name smtp.domain1.com {
ssl_cert = </etc/ssl/certs/domain1.com-cert.pem
ssl_key = </etc/ssl/private/domain1.com-privkey.key
ssl_ca = </etc/ssl/certs/domain1.com-chain.pem
}
local_name smtp.domain2.com {
ssl_cert = </etc/ssl/certs/smtp.domain2.com-cert.pem
ssl_key = </etc/ssl/private/smtp.domain2.com-privkey.key
ssl_ca = </etc/ssl/certs/smtp.domain2.com-chain.pem
}
But it doesn't work. This error is returned when I try to connect to the webmail (roundcube) :
Apr 22 22:36:06 localhost dovecot: imap-login: Fatal: Couldn't parse private ssl_key: error:0906D06C:PEM routines:PEM_read_bio:no start line: Expecting: ANY PRIVATE KEY
Apr 22 22:36:06 localhost dovecot: master: Error: service(imap-login): command startup failed, throttling for 2 secs
When I try with openssl s_client :
CONNECTED(00000003)
write:errno=104
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 0 bytes and written 176 bytes
Verification: OK
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
No ALPN negotiated
SSL-Session:
Protocol : TLSv1.2
Cipher : 0000
Session-ID:
Session-ID-ctx:
Master-Key:
PSK identity: None
PSK identity hint: None
SRP username: None
Start Time: 1524436845
Timeout : 7200 (sec)
Verify return code: 0 (ok)
Extended master secret: no
---
Without local_name (just 1 set of certificates), all works fine.
What's wrong with my configuration ?
Best Answer
I add to dovecot.conf the line :
at the end & delete
(after uncomment same line in 10-ssl.conf)
and it's works now