Migrate LDAP server

LDAP is a tree query system, mainly used for member management. Query more than modification, so always stable. Leave this post here to help your migration.

Install

• install OPENLDAP in new server
  apt install slapd ldap-utils php-ldap phpldapadmin

• search Suffix in old server
  slapcat -b cn=config | grep "^dn: olcDatabase=\|^olcSuffix"

Backup

• backup config
  slapcat -b cn=config -l config.ldif

• backup database
  slapcat -b dc=dengcb,dc=com -l dengcb.ldif

Migrate

• restore config

  cd /etc/ldap
  cp -a slapd.d slapd.d.bak
  rm -rf slapd.d/*
  slapadd -F slapd.d -b cn=config -l config.ldif
  chown -R openldap.openldap slapd.d

• restore database

  slapcat -b cn=config | grep "^dn: olcDatabase=\|^olcSuffix\|^olcDbDirectory"
  cd /var/lib
  cp -a ldap ldap.bak
  rm -f ldap/*
  cd /etc/ldap
  slapadd -F slapd.d -b dc=dengcb,dc=com -l dengcb.ldif
  chown openldap.openldap /var/lib/ldap/*
  /etc/init.d/slapd restart

Modify

• if get error in php7, download the modified
  replace /usr/share/phpldapadmin

• modify the config
  vi /usr/share/phpldapadmin/config/config.php