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internet:security:ssl_cert_letsencrypt_zimbra

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Using LetsEncrypt SSL Certificates with Zimbra

See also Zimbra Self-Signed SSL Certs

Howto: https://wiki.zimbra.com/wiki/Installing_a_LetsEncrypt_SSL_Certificate

Your Zimbra will be restarted during this process, taking users offline!
Be sure to include all Subject Alternative Hostnames (SANs) that you need on the certificate.
The single-server portion of the howto is fantastic. However, it only works for the actual hostname and doesn't include any SANs (alternate hostnames) you might need.

Troubleshooting

If you have trouble reissuing a new cert, or if Zimbra won't start, recreate and deploy a new self-signed cert to get Zimbra 'working' again. Then re-implement a LetsEncrypt cert.

If a cert is expired, you must reissue a new cert.

If a certificate renewal fails, try reissuing a new cert instead.

internet/security/ssl_cert_letsencrypt_zimbra.1661958581.txt.gz · Last modified: 2022/08/31 09:09 by gcooper