My domain is: mail.jppozzi.dyndns.org
I ran this command (Zimbra specific) :
zmcertmgr verifycrt comm privkey.pem cert.pem chain.pem
It produced this output:
*** Verifying 'cert.pem' against 'privkey.pem'*
Certificate 'cert.pem' and private key 'privkey.pem' match.
*** Verifying 'cert.pem' against 'chain.pem'*
ERROR: Unable to validate certificate chain: C = US, O = Internet Security Research Group, CN = ISRG Root X1
error 2 at 2 depth lookup: unable to get issuer certificate
error cert.pem: verification failed
My web server is (include version): It is not a single webserver it is a Zimbra installation up to date and the cert is used for many connections.
The operating system my web server runs on is : Ubuntu 16.04
I can login to a root shell on my machine (yes or no, or I don't know): YES
I'm using a control panel to manage my site (no, or provide the name and version of the control panel): NO
The version of my client is : certbot 0.31.0
It is not the first time I renew a certificate, my cert in the number 15 in the /etc/letsencrypt/archive :
-rw-r--r-- 1 root root 1704 déc. 12 12:37 privkey15.pem
-rw-r--r-- 1 root root 5616 déc. 12 12:37 fullchain15.pem
-rw-r--r-- 1 root root 3750 déc. 12 12:37 chain15.pem
-rw-r--r-- 1 root root 1866 déc. 12 12:37 cert15.pem
I have some other certificates renewed on november 11 with no problem, they are used with an apache server.
I try many times with no success ....
Regards
JPPO