SQL session backend

SQL session backend can be used with many SQL databases such as:

Your database must have a specific table to host sessions. Here are some examples for main databases servers.


Create a database if necessary:

mysqladmin create lemonldapng

Create sessions table:

CREATE TABLE sessions (
    a_session BLOB


Create user and role:

su - postgres
createuser lemonldap-ng -P
Entrez le mot de passe pour le nouveau rôle : <PASSWORD>
Entrez-le de nouveau : <PASSWORD>
Le nouveau rôle est-il un super-utilisateur ? (o/n) n
Le nouveau rôle doit-il être autorisé à créer des bases de données ? (o/n) n
Le nouveau rôle doit-il être autorisé à créer de nouveaux rôles ? (o/n) n

Create database:

createdb -O lemonldap-ng lemonldap-ng

Create table:

psql -h -U lemonldap-ng -W lemonldap-ng
Mot de passe pour l'utilisateur lemonldap-ng :
lemonldap-ng=> create table sessions ( id char(32) not null primary key, a_session text );
lemonldap-ng=> q

Go in the Manager and set the session module (for example Apache::Session::Postgres for PostgreSQL) in General parameters » Sessions » Session storage » Apache::Session module and add the following parameters (case sensitive):

Required parameters
Name Comment Example
DataSource The DBI string dbi:Pg:dbname=sessions;host=
UserName The database username lemonldapng
Password The database password mysuperpassword
Commit Required for PostgreSQL 1

You must read the man page corresponding to your database (Apache::Session::MySQL, …) to learn more about parameters. You must also install the database connector (DBD::Oracle, DBD::Pg,…)

If you choose to use MySQL, read how to increase MySQL performances.

Restrict network access to the database.

You can also use different user/password for your servers by overriding parameters globalStorage and globalStorageOptions in lemonldap-ng.ini file.