Search found 128 matches

by barrydegraaff
Fri Oct 01, 2021 5:59 am
Forum: Administrators
Topic: Installing Letsencrypt cert after root expiration
Replies: 16
Views: 7520

Re: Installing Letsencrypt cert after root expiration

Appreciate the help with the instruction on using certbot with Zimbra however the instructions in that link ( https://wiki.zimbra.com/wiki/Installing_a_LetsEncrypt_SSL_Certificate?c) Make sure to request a certificate with the --preferred-chain "ISRG Root X1" option. In case you already h...
by barrydegraaff
Fri Oct 01, 2021 5:56 am
Forum: Administrators
Topic: Installing Letsencrypt cert after root expiration
Replies: 16
Views: 7520

Re: Installing Letsencrypt cert after root expiration

Everyone uses Let's Encrypt in a different way... that is why on the wiki I only wrote the options you need to make it work on Zimbra. You can combine this information with whatever generic Letsencrypt guide you can find on the internet. I will tell you how I do it, so you can look at it and hopeful...
by barrydegraaff
Thu Sep 30, 2021 3:01 pm
Forum: Administrators
Topic: How to prevent a hack attempt? SASL LOGIN
Replies: 4
Views: 757

Re: How to prevent a hack attempt? SASL LOGIN

Perhaps you can disable SMTP authentication:

https://wiki.zimbra.com/wiki/Secopstips ... entication

End users should not need this on port 25, you must have set-up MTA trusted networks correctly for this.
by barrydegraaff
Wed Sep 22, 2021 9:07 am
Forum: Administrators
Topic: Installing Letsencrypt cert after root expiration
Replies: 16
Views: 7520

Re: Installing Letsencrypt cert after root expiration

I can confirm that using --preferred-chain solves the issue. Please note that you will need an up-to-date certbot, the ones packed in OS is too old. Consider using a snap. https://certbot.eff.org/lets-encrypt/ubuntufocal-apache.html In a scripted way, this is how I use it now, I run all these comman...
by barrydegraaff
Tue Sep 14, 2021 5:48 am
Forum: Zimlets
Topic: Rocket Chat iFrame not shown
Replies: 1
Views: 9512

Re: Rocket Chat iFrame not shown

This has to do with HTTP headers not being correctly set, please follow the updated readme at: https://github.com/Zimbra-Community/zimbra-rocket
by barrydegraaff
Tue Sep 14, 2021 5:47 am
Forum: Zimlets
Topic: BigBlueButton zimlet not working on 8.8.15.FOSS
Replies: 1
Views: 6508

Re: BigBlueButton zimlet not working on 8.8.15.FOSS

It has been verified to work, please re-run the installer and make sure to configure your server secret as per the readme.
by barrydegraaff
Tue Sep 14, 2021 5:44 am
Forum: Administrators
Topic: Issue setting zimbraAdminSieveScriptBefore at Server-Level
Replies: 4
Views: 2475

Re: Issue setting zimbraAdminSieveScriptBefore at Server-Level

You can find them in
/opt/zimbra/conf/attrs/zimbra-attrs.xml

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