Institutions typically use different ways (Shibboleth, LDAP, etc.) to authenticate users. It is difficult to achieve a one-size-fits-all deployment to address all the different authentication in OLE. This bottleneck can be cleared by using a reverse proxy.
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Alternatively, a System Parameter can be created with Namespace code KR-NS and Parameter Name, LOGOFF_REDIRECT_URL and the URL specified in Parameter Value and OLE would pick the URL as the redirect link. The value in the System Parameter overrides the configuration in olefs-config-defaults.xml.
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It should be noted that though the Logout button invalidates the OLE session, the session established by the application residing on the Proxy Server may continue and may need to be handled externally. |
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If you are experiencing HTTP 501 ("Method Not Implemented") errors, this may be the cause. Check your Apache version and error logs for messages such as "ajp_marshal_into_msgb - No such method PATCH".
Possible Fixes
- Use mod_proxy_http instead of mod_proxy_ajp in your proxy setup.
- Use at least Apache 2.4.4 with mod_proxy_ajp.
- (Unverified) Use mod_jk instead of mod_proxy_ajp.