Cheat sheet
To test connectivity to localhost (via unix docmain socket)
ldapwhoami -x -D 'cn=kohsuke,ou=people,dc=jenkins-ci,dc=org' -W
To test connectivity to another host (note that LDAP doesn't accept connection from everywhere)
ldapwhoami -x -D 'cn=kohsuke,ou=people,dc=jenkins-ci,dc=org' -W -H ldaps://ldap.jenkins.io/
To backup,
$ slapcat | gzip
To restart backup from data.ldif.gz
$ /etc/init.d/slapd stop $ cd /var/lib $ mv ldap ldap.backup $ mkdir /var/lib/ldap $ gunzip -c data.ldif.gz | slapadd $ chown -R openldap:openldap /var/lib/ldap $ /etc/init.d/slapd start