install certificate how to

[Paul van der Vlis]

Op 30-11-17 om 13:42 schreef Nikos Gatsis - Qbit:
> Hello list
> I have a mailserver which serve about 40 virutal domains and many users
> per domain using cyrus-imapd-2.4.17-13.el7.x86_64 and
> sendmail-8.14.7-5.el7.x86_64.
> How can I install a certificate per domain? Is that possible?
> 
> Now I use what cyrus manual suggest:
> 
> imapd.conf:
> ...
> tls_cert_file: /var/lib/imap/server.pem
> tls_key_file: /var/lib/imap/server.pem
> 3tls_key_file: /etc/pki/cyrus-imapd/cyrus-imapd.pem
> tls_ca_file: /etc/pki/tls/certs/ca-bundle.crt
> ...

I think it's possible to use a Let's encrypt certificate with many names
in one certificate. But I have not tried it. The maximum is 100 domains.

With regards,
Paul vand er Vlis



-- 
Paul van der Vlis Linux systeembeheer Groningen
https://www.vandervlis.nl/