JNDI Environment Properties

JNDI Environment Properties

JNDI provides place to specify various configuration details. There are different types of environment properties and defined in four clauses.

Standard JNDI environment properties

- defined by JNDI and common in all the service providers

• java.naming.provider.url - URL, where the service provider deployed
• java.naming.factory.initial - Initial Context implemented Class
• java.naming.dns.url - URL, DNS host and domain names to use for the "jndi" URL context implementation
• java.naming.factory.object
• java.naming.factory.state
• java.naming.factory.control
• java.naming.factory.url.pkgs

Service-Specific Environment Properties

Common across all the service providers. Properties have the prefix java.naming.service. . For instance, java.naming.ldap.

Feature-Specific Environment Properties

Common across all the service providers for particular feature. Properties have the prefix java.naming.feature. . For instance, java.naming.sasl.

• java.naming.security.principal - username
• java.naming.security.credentials - password (if keystore configured then key will be placed here instead of password)

Provider-Specific Environment Properties

Specific to service provider. For instance, LDAP trace property com.sun.jndi.ldap.trace.ber, GSS-API and kerberos properties java.security.auth.login.config=gsseg_jaas.conf java.security.krb5.conf=krb5.conf

Some useful links Tutorial,TechnotessSecurity/Permission in client

Sample code to get context from LDAP

Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY, 
    "com.sun.jndi.ldap.LdapCtxFactory");
env.put(Context.PROVIDER_URL, "ldap://localhost:7009/o=Oracle");

Context ctx = new InitialContext(env);

Posted in: JNDI

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