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[GH-ISSUE #156] Can't make ldap backup with sudo -u zimbra #123

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opened 2026-02-27 08:14:27 +03:00 by kerem · 3 comments

kerem commented

2026-02-27 08:14:27 +03:00

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Originally created by @soniqsoft on GitHub (Jan 25, 2021).
Original GitHub issue: https://github.com/lucascbeyeler/zmbackup/issues/156

ISSUE TYPE

Bug Report

ENVIRONMENT VERSION

Zmbackup Version: 1.2.5
Zimbra Version: 8.8.15
Linux Distribution & Version: Ubuntu 18.04.5 LTS

SUMMARY

Hi,
I'm trying to run full and incremental backups with zmbackup cron included in package.
Unfortunately can't get it done due to ldap backup fail with messages:

Zmbackup: LDAP - Can't extract accounts from LDAP - Error below:
Zmbackup: ldap_start_tls: Connect error (-11)#012#011additional info: error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed (self signed certificate in certificate chain)#012ldap_result: Can't contact LDAP server (-1)
Zmbackup: Mail sent to admin@email to notify about the backup routine conclusion.
Zmbackup: Excluding the temporary files before close.

However I can:

telnet mail.server 389

without any issue.

I've got letsencrypt certificate deployed on my zimbra server.

The problem does not exist when I'm running full or incremental backup in following sequence:

su - zimbra
zmbackup -f -ldp
or
zmbackup -f
or
zmbackup -i`

Any idea how to get it working with cron?

Thanks in advance.
M@riusz

STEPS TO REPRODUCE

Install zimbra
Install and deploy letsencrypt certificate based on this: https://github.com/VojtechMyslivec/letsencrypt-zimbra
Install zmbackup following this: https://github.com/Zmbackup/zmbackup
sudo -u zimbra zmcontrol -ldp

ACTUAL RESULTS

In syslog file I can see:

Zmbackup: LDAP - Can't extract accounts from LDAP - Error below:
Zmbackup: ldap_start_tls: Connect error (-11)#012#011additional info: error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed (self signed certificate in certificate chain)#012ldap_result: Can't contact LDAP server (-1)
Zmbackup: Mail sent to admin@email to notify about the backup routine conclusion.
Zmbackup: Excluding the temporary files before close.

and I'm receiving an email confirming proper result of the backup task:

Greetings Administrator,
    

This is an automatic message to inform you that the process for Account - Only LDAP BACKUP that you scheduled ended right now.
    
Here some information about this session:

Size: 0
Accounts: 0
Status: SUCCESS

Regards,
Zmbackup Team
    

Summary of files:

Originally created by @soniqsoft on GitHub (Jan 25, 2021). Original GitHub issue: https://github.com/lucascbeyeler/zmbackup/issues/156   ##### ISSUE TYPE - Bug Report  ##### ENVIRONMENT VERSION - Zmbackup Version: 1.2.5 - Zimbra Version: 8.8.15 - Linux Distribution & Version: Ubuntu 18.04.5 LTS  ##### SUMMARY Hi, I'm trying to run full and incremental backups with zmbackup cron included in package. Unfortunately can't get it done due to ldap backup fail with messages: ``` Zmbackup: LDAP - Can't extract accounts from LDAP - Error below: Zmbackup: ldap_start_tls: Connect error (-11)#012#011additional info: error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed (self signed certificate in certificate chain)#012ldap_result: Can't contact LDAP server (-1) Zmbackup: Mail sent to admin@email to notify about the backup routine conclusion. Zmbackup: Excluding the temporary files before close. ``` However I can: ``` telnet mail.server 389 ``` without any issue. I've got letsencrypt certificate deployed on my zimbra server. The problem does not exist when I'm running full or incremental backup in following sequence: ``` su - zimbra zmbackup -f -ldp or zmbackup -f or zmbackup -i` ``` Any idea how to get it working with cron? Thanks in advance. M@riusz  ##### STEPS TO REPRODUCE ``` Install zimbra Install and deploy letsencrypt certificate based on this: https://github.com/VojtechMyslivec/letsencrypt-zimbra Install zmbackup following this: https://github.com/Zmbackup/zmbackup sudo -u zimbra zmcontrol -ldp ```  ##### ACTUAL RESULTS In syslog file I can see: ``` Zmbackup: LDAP - Can't extract accounts from LDAP - Error below: Zmbackup: ldap_start_tls: Connect error (-11)#012#011additional info: error:14090086:SSL routines:ssl3_get_server_certificate:certificate verify failed (self signed certificate in certificate chain)#012ldap_result: Can't contact LDAP server (-1) Zmbackup: Mail sent to admin@email to notify about the backup routine conclusion. Zmbackup: Excluding the temporary files before close. ``` and I'm receiving an email confirming proper result of the backup task: ``` Greetings Administrator, This is an automatic message to inform you that the process for Account - Only LDAP BACKUP that you scheduled ended right now. Here some information about this session: Size: 0 Accounts: 0 Status: SUCCESS Regards, Zmbackup Team Summary of files: ```

kerem added the

Bug Report

label

2026-02-27 08:14:27 +03:00

kerem commented

2026-02-27 08:14:28 +03:00

Author

Owner

@lucascbeyeler commented on GitHub (Feb 6, 2021):

I will take a look at this

@lucascbeyeler commented on GitHub (Feb 6, 2021): I will take a look at this

kerem commented

2026-02-27 08:14:28 +03:00

Author

Owner

@soniqsoft commented on GitHub (Feb 8, 2021):

Great! Thanks!

@soniqsoft commented on GitHub (Feb 8, 2021): Great! Thanks!

kerem commented

2026-02-27 08:14:28 +03:00

Author

Owner

@lucascbeyeler commented on GitHub (Mar 14, 2021):

Could you try executing this command before zmbackup?

export LDAPTLS_REQCERT=never

@lucascbeyeler commented on GitHub (Mar 14, 2021): Could you try executing this command before zmbackup? export LDAPTLS_REQCERT=never