Certificate renewal -- Nginx? Zimbra?

Hi Folks,

My domain is: mail.tclc.org, mail.tryx.org
My web server is (include version): Zimbra (Nginx?)
The operating system my web server runs on is (include version): Centos 7
My hosting provider, if applicable, is: self
I can login to a root shell on my machine (yes or no, or I don't know): Yes

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): certbot 1.11.0

I have been using "Let's Encrypt" for my Zimbra mail server for a few years, but I have ever been able to find adequate instruction for certificate renewal. Consequently, every three months, I have been simply deleting old and requesting new. Not a very sophisticated procedure ...

I understand how "Let's Encrypt" deploys certificates, reasonably well, and I also understand how Zimbra "re-deploys" those certificates for his purposes. I am under the impression that there should be a renewal script for Zimbra, but "certbot-zimbra.sh" doesn't work in the ways I have tried, which means that I have not made a proper request.

Can anybody direct me to instructions for renewing my certificates for Zimbra, with or without "certbot-zimbra.sh"?

Thanks for the help,

Chris.

1 Like

Did you, by any chance, use Installing a LetsEncrypt SSL Certificate - Zimbra :: Tech Center as the instructions to get a Let's Encrypt certificate in the first place?

After reading it for a little bit: I surely hope not! It's just plain terrible...

3 Likes

Try these steps:

#copy cert
cp /etc/letsencrypt/live/[domain-name]/* /opt/zimbra/ssl/letsencrypt/
chown zimbra /opt/zimbra/ssl/letsencrypt/*.pem
chgrp zimbra /opt/zimbra/ssl/letsencrypt/*.pem

#verify cert
su - zimbra -c "/opt/zimbra/bin/zmcertmgr verifycrt comm /opt/zimbra/ssl/letsencrypt/privkey.pem /opt/zimbra/ssl/letsencrypt/cert.pem /opt/zimbra/ssl/letsencrypt/le_cert_chain.pem"
cp /opt/zimbra/ssl/letsencrypt/privkey.pem /opt/zimbra/ssl/zimbra/commercial/commercial.key

#deploy cert
su - zimbra -c "/opt/zimbra/bin/zmcertmgr deploycrt comm /opt/zimbra/ssl/letsencrypt/cert.pem /opt/zimbra/ssl/letsencrypt/le_cert_chain.pem"

NOTE:
file /opt/zimbra/ssl/letsencrypt/le_cert_chain.pem =

-----BEGIN CERTIFICATE-----
MIIFFjCCAv6gAwIBAgIRAJErCErPDBinU/bWLiWnX1owDQYJKoZIhvcNAQELBQAw
TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
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hCExroL1+7mryIkXPeFM5TgO9r0rvZaBFOvV2z0gp35Z0+L4WPlbuEjN/lxPFin+
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MldlTTKB3zhThV1+XWYp6rjd5JW1zbVWEkLNxE7GJThEUG3szgBVGP7pSWTUTsqX
nLRbwHOoq7hHwg==
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
MIIFazCCA1OgAwIBAgIRAIIQz7DSQONZRGPgu2OCiwAwDQYJKoZIhvcNAQELBQAw
TzELMAkGA1UEBhMCVVMxKTAnBgNVBAoTIEludGVybmV0IFNlY3VyaXR5IFJlc2Vh
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emyPxgcYxn/eR44/KJ4EBs+lVDR3veyJm+kXQ99b21/+jh5Xos1AnX5iItreGCc=
-----END CERTIFICATE-----
3 Likes

Hi @rg305,

That was enormously helpful. I had almost all of that, but not quite, and "not quite" usually means "not work".

Thanks for the help.

Chris.

3 Likes

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