0

I'm a newbie trying to wing it after our Sys Admin left. I needed to update our wildcard certificate and copy it onto our mail server.

I renewed the cert at Namecheap, downloaded it, and installed it on our webservers. Everything is showing up fine in a browser for websites. However, when navigating to the browser portal of our mail server, it is still showing the old cert. I have restarted Postfix, but nothing has changed.

In my /etc/postfix/main.cf:

# TLS parameters
smtpd_tls_cert_file = /etc/ssl/certs/wc2_mydomain.com.combined.crt
smtpd_tls_key_file = /etc/ssl/private/wc2_mydomain.com.key
smtpd_use_tls=yes

However, in the browser, it still shows the old expiration date even after postfix reload (it should be 2022):

Issued On   Wednesday, February 20, 2019 at 6:00:00 PM
Expires On  Saturday, February 20, 2021 at 5:59:59 PM

What am I missing? It's going to be very bad if this doesn't show up correctly come Saturday at 6:00pm.

6
  • What is "the browser portal of our mail server"? – Michael Hampton Feb 20 at 0:57
  • @MichaelHampton Instead of a client (e.g. Thunderbird), going to mail-server-hostname.mydomain.com/mail. The RoundCube web interface. – DevOpsSauce Feb 20 at 0:59
  • 1
    It looks like you bound the new certificate to SMTP on the mail server but it doesn't seem like you've bound it to the web server on your mail server. – joeqwerty Feb 20 at 1:48
  • Yes, that's what it sounds like. – Michael Hampton Feb 20 at 2:00
  • @joeqwerty Going to do some research to see how to do that. Will come back with my results unless someone chimes in. Thanks for the clue. – DevOpsSauce Feb 20 at 2:01
1

I figured it out. I was on the right track. My /etc/ssl/certs/wc2_mydomain.com.combined.crt file was simply out of order. I discovered the correct order in this article (at the bottom)

It states:

and the correct way is this:

SSLCertificateFile /etc/apache2/ssl/certificate.crt
SSLCertificateKeyFile /etc/apache2/ssl/private.key
SSLCACertificateFile /etc/apache2/ssl/intermediate.crt

I simply had my certs out of order! :D My browser interface works, and the cert shows expiring 2022. Thanks for the nudges in the right direction friends. Another crisis averted.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.