Change OpenLDAP slapd Logging

Zimbra platform leverages powerful OpenLDAP Directory Service as identity basis for Zimbra services.


Two common things that you may want to change from default OpenLDAP slapd configuration:

  1. change logging location (Zimbra default: /var/log/zimbra.log).
  2. change slapd log level.

Change slapd logging location.  Requires two changes to (a) way zimbra starts slapd,  and (b) syslog config.

1. Edit file:   /opt/zimbra/bin/ldap
2. Find following line:  "sudo /opt/zimbra/openldap-2.3.21/libexec/slapd -l LOCAL0 ..." 
3. Duplicate the line and comment one line (ie. add "#" to beginning -- to save original version).
4. Modify the non-commented line and remove the "-l LOCAL0" portion. 

The default OpenLDAP slapd logging is to syslog facility Local4

Now update /etc/syslogd.conf and add following line at bottom:
 local4.*     /var/log/slapd.conf

Restart syslogd and zimbra (zmcontrol stop/start) for your changes to take affect.
zmlocalconfig -e ldap_log_level=<number>

Typical example:  zmlocalconfig -e ldap_log_level=256

Note:   '256' will provide insight into connections, operations, and search filters.


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