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orber
User's Guide
Version 3.8

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Chapters

- The Orber Application
  - Top of chapter
  - Content Overview
  - Brief Description of the User's Guide
- Introduction to Orber
  - Top of chapter
  - Overview
- The Orber Application
  - Top of chapter
  - ORB Kernel and IIOP
  - The Object Request Broker (ORB)
  - Internet Inter-Object Protocol (IIOP)
- Interface Repository
  - Top of chapter
  - Interface Repository(IFR)
- Installing Orber
  - Top of chapter
  - Installation Process
  - Configuration
  - Firewall Configuration
  - Interface Configuration
- OMG IDL to Erlang Mapping
  - Top of chapter
  - OMG IDL to Erlang Mapping - Overview
  - OMG IDL Mapping Elements
  - Getting Started
  - Basic OMG IDL Types
  - Template OMG IDL Types and Complex Declarators
  - Constructed OMG IDL Types
  - Scoped Names and Generated Files
  - Typecode, Identity and Name Access Functions
  - References to Constants
  - References to Objects Defined in OMG IDL
  - Exceptions
  - Access to Attributes
  - Invocations of Operations
  - Implementing the DB Application
  - Reserved Compiler Names and Keywords
  - Type Code Representation
- CosNaming Service
  - Top of chapter
  - Overview of the CosNaming Service
  - The Basic Use-cases of the Naming Service
  - Interoperable Naming Service
- How to use security in Orber
  - Top of chapter
  - Security in Orber
- Orber Stubs/Skeletons
  - Top of chapter
  - Orber Stubs and Skeletons Description
- CORBA System and User Defined Exceptions
  - Top of chapter
  - System Exceptions
  - User Defined Exceptions
  - Throwing Exceptions
  - Catching Exceptions
- Orber Interceptors
  - Top of chapter
  - Using Interceptors
  - Interceptor Example
- OrberWeb
  - Top of chapter
  - Using OrberWeb
  - Starting OrberWeb
- Debugging
  - Top of chapter
  - Tools and FAQ

# 8 How to use security in Orber

### 8.1 Security in Orber

#### Introduction

Orber SSL provides authentication, privacy and integrity for your Erlang applications. Based on the Secure Sockets Layer protocol, the Orber SSL ensures that your Orber clients and servers can communicate securely over any network. This is done by tunneling IIOP through an SSL connection. To get the node secure you will also need to have a firewall which only lets through connections to certain ports.

#### Enable Usage of Secure Connections

To enable a secure Orber domain you have to set the configuration variable secure which currently only can have one of two values; no if no security for IIOP should be used and ssl if secure connections is needed (ssl is currently the only supported security mechanism).

The default is no security.

#### Configurations when Orber is Used on the Server Side

There is a variable to conficure Orber's SSL behavior on the server side.

- ssl_server_options - which is a list of options to ssl. See the SSL application for further descriptions on these options.

There also exist an API function for accessing the value of this variable:

- orber:ssl_server_options/0

#### Configurations when Orber is Used on the Client Side

When the Orber enabled application is the client side in the secure connection the different configurations can be set per client process instead and not for the whole domain as for incoming calls.

There is a variable to set default values for the domain but they can be changed per client process.

- ssl_client_options - which is a list of options to ssl. See the SSL application for further descriptions on these options.

There also exist two API functions for accessing and changing the values of this variable in the client processes.

Access function:

- orber:ssl_client_options/0

Modify function:

- orber:set_ssl_client_options/1