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Some other Linux distributions also maintain binary installers available from the OS distribution point. If you For Debian/Ubuntu, please install the libapache2-mod-shib package (libapache2-mod-shib2 on older releases) with apt-get or other package manager. If you have questions about other distributions please contact touchstone-support and indicate what operating distribution and version you are using.

The authentication request by the SP includes a timestamp, and the IdP verifies that the timestamp is current, to prevent replay attempts. Requests with an invalid timestamp (either too far in the past, or too far in the future), will be rejected by the IdP, resulting in an error. Therefore, it is essential that your server's system clock is accurate. On Linux servers, this is typically accomplished by running ntpd, the Network Time Protocol daemon. Please make sure that such time synchronization is configured on your server.

Before registering your service provider with the MIT Identity Providers, please make sure that the Shibboleth software is installed and running on your server. You should confirm that Shibboleth is running properly by connecting successfully to https://localhost/Shibboleth.sso/Status from the server; Touchstone support will attempt to confirm the SP configuration by connecting (remotely) to https://myhost/Shibboleth.sso/Metadata.

We also encourage you to send the following optional information with your registration information:

• The application URL. The actual URL which will be used to access your application.
• Your server machine's host name(s), if different from the web server host name.
• Your server platform and version. (e.g. RHEL 7, Windows 2012, Debian 8, ...)

A single Shibboleth SP installation is designed to support multiple applications installed on that server, but there are different deployment and configuration strategies to support multiple applications. At MIT we recommend that each application simply be configured to use a separate Apache vhost; more complex configurations, e.g. creating separate entity IDs for each application, are also possible. For more information, please see:

• Shibboleth SP Application Model
• Shibboleth SP Application Override

An example of when separate entity IDs are needed would be if one application requires a non-standard set of attributes to be released to it. Please consult with touchstone-support as needed.

Once Touchstone support has created your application integration in Okta, we will provide you with the Okta external ID you will need to supply in the configuration procedure (see below)

On a Linux server, the quickest way to get started is to use Touchstone's mit-config-shib.sh script to generate an initial configuration from a template. You will need to know the Okta external ID for your integration in order to complete this step.

In the /etc/shibboleth directory (as root), download and run the mit-config-shib.sh script from the touchstone.mit.edu web server, e.g.:

# cd /etc/shibboleth
# wget -N https://touchstone.mit.edu/config/shibboleth-sp-3/mit-config-shib.sh
# sh mit-config-shib.sh

mit-config-shib.sh will use either the wget utility or curl utility, if available, to download the other files needed to configure the SP. If you do not have either wget or curl on your system, you must download the following files manually from https://touchstone.mit.edu/config/shibboleth-sp-3/ and install them into the /etc/shibboleth directory:

• attribute-map.xml
• mit-config-shib.sh
• shibboleth2.xml.in

If you are not using the Okta IdP, then you will also need to download the MIT metadata signing certificate, mit-md-cert.pem

Here is a sample typescript from running the procedure for a web server whose public name (the host name entered by users as the URL to access your application) is mywebsite.mit.edu, but is hosted on a machine named simulacrum.mit.edu:

[root@simulacrum-server-1 shibboleth]# sh mit-config-shib.sh

Configure for the Okta IdP? [Y] 
Please enter the Okta external ID provided by Touchstone Support.

Enter the Okta external ID: exkdckcmyloNarixC697
 
Downloading metadata to okta-exkdckcmyloNarixC697-md.xml...

Download latest shibboleth2.xml.in? [Y] 

Download latest attribute-map.xml? [Y] 
Saving previous version as attribute-map.xml.old

Enter the web server host name: [simulacrum-server-1.mit.edu] simulacrum.mit.edu

Support contact email address? [simulacrum-help@mit.edu] 


Will this server be joining the InCommon Federation? [N] 
Using prefix /usr...
shibboleth2.xml already exists, saving previous version as shibboleth2.xml.old

Notes:

• The default web server host name is the machine host name, but we override that in this example with the user-visible web server host name, mywebsite.mit.edu.
• We require that you generate and use a pair of self-signed certificates with Shibboleth (one pair for signing, another for encryption), instead of sharing the MIT (or commercial) SSL certificate used for browser-facing https traffic. The mit-config-shib.sh script can generate proper certificates as needed; in this example, it regenerates the certificates created when the shibboleth RPM was installed, so that the subject CN matches the web server host name, instead of the machine host name.  You must include the contents of these certificate files (normally sp-signing-cert.pem and sp-encrypt-cert.pem) when emailing your registration request to touchstone-support (see below).

• We recommend that you set Shibboleth cookies to be secure (i.e. only sent by the browser via https connections), to minimize the risk of a session being hijacked. This requires, though, you configure your server to use SSL for all Shibboleth-protected content; otherwise a browser loop may be introduced. Shibboleth provides a special option to force a redirect for any attempted http access to SSL (https), which can be specified via an Apache directive:

  No Format
  ShibRequestSetting redirectToSSL 443

  (replace 443 with the appropriate number, if using a non-standard port for https traffic).

• If your application will support user bases from other InCommon Federation institutions, i.e. other than MIT and Collaboration accounts, then answer Yes to the question about joining the InCommon Federation.  The necessary configuration will be added to Shibboleth.  Also remember to indicate that you want to register with InCommon when you submit your registration request to touchstone-support.

Notes

Note that some changes to the shibboleth2.xml, attribute-map.xml, and attribute-policy.xml files will be detected automatically, i.e. without requiring a restart of shibd.

Note: The mit-config-shib.sh procedure described above is currently supported on Linux systems only; it should be portable to other UNIX-based systems with minimal effort. Please contact touchstone-support if you are using another operating system and having problems with the mit-config-shib.sh script.

The $prefix/etc/shibboleth directory will contain apache.config, apache2.config, apache22.config, and apache24.config, which contain needed and example directives for Apache 1.3, Apache 2.0, Apache 2.2, and Apache 2.4, respectively.  If you install from Red Hat RPMs, the appropriate version of this file will be installed in /etc/httpd/conf.d/shib.conf; we recommend that you add your Shibboleth directives to a separate file, to avoid having to merge changes to shib.conf when the RPM is updated. Otherwise, copy and/or include the appropriate version of the file in your Apache config, and customize as needed.

shibd is a daemon that must be running, so make sure it is started at boot time.  Installing from Red Hat RPMs also take care of this, by adding shibd as a managed service.  The $prefix/etc/shibboleth directory will contain init files (shibd-*) for various other types of installations.

On Windows/IIS machines, the shibboleth2.xml.windows-example file in the locker is a good starting point for the shibboleth2.xml file. You will need to edit the file for it to work on your server; please see the comments at the top of the file for the details. The attribute-map.xml file in the locker should work without modification.

The Shibboleth Apache module logs by default to httpd's own error log.

The Shibboleth daemon logs to shibd.log, shibd_warn.log, and transaction.log in $prefix/var/log/shibboleth/.

For information on configuring Shibboleth to protect content, please see the Shibboleth wiki, as well as the information in the sections below.

You will probably also want to customize the error pages and support contact information listed in the <Errors> element in $prefix/etc/shibboleth/shibboleth2.xml, e.g.:

<Errors supportContact="mywebsite-help@mit.edu"
    helpLocation="/about.html"
    styleSheet="/shibboleth-sp/main.css"/>

The error template files are located in $prefix/etc/shibboleth/ (you can override these locations in the <Errors> element). For more information, see https://wiki.shibboleth.net/confluence/display/SP3/Errors

Once your SP is properly registered with the IdP, you can test your SP's configuration by visiting either the Shibboleth handler's session initiation location (https://myhost/Shibboleth.sso/Login by default), or a resource protected in your Apache configuration or Shibboleth request map, e.g. https://myhost/secure. After you have authenticated successfully, you can then visit https://myhost/Shibboleth.sso/Session to display the Shibboleth session information, including a list of the available attributes. To include the attribute values in this display, edit shibboleth2.xml, and set the handler's showAttributeValues property to "true":

    <!-- Session diagnostic service. -->
    <!-- Set showAttributeValues to "true" for testing only! -->
    <Handler type="Session" Location="/Session" showAttributeValues="true"/>

Once you have confirmed that your SP is getting the proper set of attributes, we recommend that you set the handler's showAttributeValues property back to "false":

    <!-- Session diagnostic service. -->
    <Handler type="Session" Location="/Session" showAttributeValues="false"/>

Please send email to touchstone-support for assistance with setting up your SP