Connection to Oracle without a username or password

Oracle has this concept of allowing database users to be identified by the operating system user who is running the program that is connecting to Oracle. See here.

This allows you to do, as that user on a unix machine for example, a command such as:

sqlplus /

I am attempting to write a Java program for Oracle 10.2 which connects without a username or password. The obvious choice of url:

jdbc:oracle:thin:/@localhost:1521:MYDBSID

doesn't work, giving an error (Sorry I don't have the error available right now).

I have attempted many other forms of doing this as well, but with no luck.

Does anyone have any suggestions on how I can connect a Java program to Oracle using the OS identification method?

Asked by: Leonardo208 | Posted: 28-01-2022

Answer 1

The JDBC Thin driver is a 100% pure Java implementation that cannot collect the needed information from the operating system.

The JDBC OCI driver can do this! Use jdbc:oracle:oci8:/@MYDBSID, it will require that the Oracle driver be installed on that machine, not a problem if this is a server (and is faster to boot and supports many more features than the thin driver)

Answered by: Sawyer739 | Posted: 01-03-2022

Answer 2

The jdbc driver that oracle ships does NOT have the capability of gathering the OS username and password from the URL that you provide it. Suppose, there are 3rd party JDBC driver providers for ORACLE, one of them might provide the functionality that you're asking for. you should google around.

Answered by: Lucas788 | Posted: 01-03-2022

Answer 3

Thanks to those that answered. We've gone with the OCI driver.

I did find documentation to suggest that Oracle 11g does support OS user authentication via the thin driver though:

http://www.orindasoft.com/public/Oracle_JDBC_JavaDoc/javadoc1110/oracle/jdbc/OracleConnection.html#CONNECTION_PROPERTY_THIN_VSESSION_OSUSER

I don't have an 11g setup to test this on, so I can't be certain this works.

Answered by: Rafael225 | Posted: 01-03-2022

Answer 4

OS authentication support in the JDBC thin driver was added in 11g (you can download the JDBC thin driver from 11.2.0.4 on OTN).

Note that you have to allow remote OS authentication on the server (over TCP) otherwise it will only work with sqlplus using IPC or BEQ locally. In your init.ora file, add this:

REMOTE_OS_AUTHENT = TRUE

Then if you user is "osuserdemo" on the client machine, create a database user like this and restart the DB:

 CREATE USER OSUSERDEMO IDENTIFIED EXTERNALLY;
 GRANT CONNECT,CREATE SESSION,RESOURCE TO OSUSERDEMO;

And the JDBC thin driver should be able to connect without any username or password.

It's worth noting that this feature - considered as highly unsecured - has been de-supported in 12c.

Answered by: Julian525 | Posted: 01-03-2022

Answer 5

If you're accessing Oracle from a J2EE appserver, you could achieve a similar end by using JNDI to acquire a datasource.

Answered by: Cherry268 | Posted: 01-03-2022

Answer 6

The 11g thin driver can connect using Kerberos authentication.

See Connect to an Oracle database using Kerberos

Answered by: Clark432 | Posted: 01-03-2022

Answer 7

try following jdbc:oracle:thin:username/password@localhost:1521:MYDBSID

you need to specify the account information

sqlplus / as sysdba on a unix machine which go through the operation system autentication

Answered by: Chester750 | Posted: 01-03-2022

Answer 8

jdbc:oracle:oci:@ works with ojdbc6.jar and Oracle 11g2

Answered by: Roman418 | Posted: 01-03-2022

Similar questions

java - Username & Password in JDBC Connection URL

I was using a SQuirrel SQL Client to connect & browse my oracle database servers. I have given the credentials in the connection URL itself. But it still prompts for the username and password. Does it really required to provide additional username/password while establishing connection. Won't it take it from the connection URL? jdbc:oracle:thin:username/password@my.oracle.server.domain.com:1521:DBName ...

java - DB2 connection without specifying username and password

I have installed DB2 Express C 9.7.4 edition. I am establishing DB2 Connection using JAVA language. But I have to still provide user name and password of my windows Login account for establishing connection... Is it necessary to mention it ? Is there any way out that can establish connection without specifying user name/password as during i...

java - JDBC connection refused, default username password?

I have not used JDBC before. I want my program to store information from the user every time the user starts the program. Previous activity can be seen, so I have to use database, right? So I thought of using JDBC but I have some problems. import java.sql.* ; public class Database { static final String JDBC_DRIVER = "com.mysql.jdbc.Driver"; static final String DB_URL = "jdbc:mysql://local...

java - does sending email via SMTP with TLS connection encrypt the username and password?

I've written an appilicaiton with Java which sends Email. For sending Email I've used SMTP with TLS. Recently I've searched about TLS and I found the flowing description about TLS on this website : Transport Layer Security (TLS), a protocol that encrypt...

java - How can I define username and password in the URL connection string?

All I have read in oracle doc is that I can replace this: OracleDataSource ods = new OracleDataSource(); ods.setDriverType("thin"); ods.setServerName("localhost"); ods.setNetworkProtocol("tcp"); ods.setDatabaseName("databaseName"); ods.setPortNumber(1521); ods.setUser("userName"); ods.setPassword("Password"); by this: ods.setUser("userName"); ods.setPassword("Password"); od...

java - connection pool won't connect due to invalid username or password

I have created a database within the netbeans client named Hotel with a username of username and password of password: When I try creating a Connnection Pool in the Glassfish Domain Admin Console, I enter the username and password and name of the databa...

java - MYSQL JPA Connection Giving Wrong username and password

I am trying to connect Postgres and mysql simultaneously in JPA with Ejb following is my persistence.xml and I am deploying the code in wildfly 10 <persistence xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd" version="2.0"&g...

How to hide MySQL Connection String- Username and Password on GitHub (Java)

I have been trying to find a solution to a dilemma I currently have. So I am doing a small project creating a simple POS system and I use Oracle MySQL database for storing information such as user passwords, item names, prices, etc. I am using Amazon AWS for the host. When I connect to it in my code I use Connection conn=DriverManager.getConnection("amazon host url","some username","somepassword"); ...

sql - How add external connection file with java project to allow user to change database, server username and pass

I have developed a java database application with netbeans and sql server 2008 Here is my java db connection class file. public java.sql.Connection connectToDB() throws SQLException, ClassNotFoundException{ try { Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver"); String connectionUrl = "jdbc:sqlserver://localhost:1433;user=sa;password=pwd12345;" + "databaseName=SMS_D...

sockets - java connection to jabber

What type of stream I need to use to write a connect request message over a tcp socket, to jabber. I'mwriting a string with xml format. It should worked with the default socket stream or a dataoutputstream but it doesn't.

Check LDAP connection (Java)

I'm using javax naming to connect to an LDAP database. Is there a good way to check if a connection is still valid? I'm looking for something really efficient here because it may need to be done often. After some web searching all I have found is a suggestion to do a quick search, is there any more lightweight way? /mac

java - How to determine database type for a given JDBC connection?

I need to handle resultsets returning stored procedures/functions for three databases (Oracle, sybase, MS-Server). The procedures/functions are generally the same but the call is a little different in Oracle. statement.registerOutParameter(1, oracle.jdbc.OracleTypes.CURSOR); ... statement.execute(); ResultSet rs = (ResultSet)statement.getObject(1); JDBC doesn't provide a generic way to ha...

spring - How can I set up an LDAP connection pool in a Java EE Container?

I need to put an LDAP contextSource into my Java EE container's JNDI tree so it can be used by applications inside the container. I'm using Spring-LDAP to perform queries against ORACLE OVD. For development, I simply set up the contextSource in the Spring xml configuration file. For production, however, I need to be able to use a JNDI lookup to grab the connection/context from the container (as suggested here:

Java connection to / between Microsoft Windows Office Suite?

I read elsewhere (a response by "hazzen" here) that .NET has "a binding for the entire Office suite outlined here that allows you to write COM-based methods that you can call from Office. It is intended for automation, but you can write any managed code you want and have Excel call into it." I'...

java - Android HTTP Connection

Can anybody tell my why this doesn't work in the Android emulator? From the browser I have access and the server is internal. All I can think of is that I'm missing some configuration on my app so it can access the network layer. try { InetAddress server = Inet4Address.getByName("thehost"); //Doesn't work either //or InetAddress server2 = Inet4Address.getByAddress(new String("192.168.1.30").getB...

java - How to create an SSL connection using the Smack XMPP library?

I'm building a small program that acts as an XMPP client and I am using the Smack library. Now, the server I am connecting to requires SSL (in Pidgin I have to check "Force old (port 5223) SSL"). I'm having trouble getting Smack to connect to this server. Is it possible?

java - HTTP Connection Pooling in GlassFish

In my webservice, I need to place some HTTP calls. Is it possible to do some connection pooling, like I do JDBC connection pooling? In the Admin Console of GlassFish I see the configuration items Connector Connection Pool and Connector Resources. Can I use these?

java - Proxool maximum connection count

I'm using proxool java connection pool (version 0.9.1). Everything works fine till I reach the maximum connection count. If the maximum connection count is reached proxool immediately throws an SQLExcepion: java.sql.SQLException: Couldn't get connection because we are at maximum connection count (n/n) and there are none av...

java - How can multiple webapps in the same tomcat instance share database connection pool?

Having in mind that each webapp has its own separate database (but all databases are in the same database server). The scenario is that I have a multi-tenant saas application - I deploy the same application for each customer. Each customer works on a database that is called db_cid, where cid is the customer id, i.e. a a unique customer identifier. Working with hibernate.

Still can't find your answer? Check out these amazing Java communities for help...

top