SAML SP for Java reports Connection refused during logout
Problem
SAML SP fails during logout with the following error:
com.ubisecure.saml2.sp.ServiceProviderException: INTERNAL_ERROR: com.ubisecure.saml2.core.SAMLException: java.net.ConnectException: Connection refused: connect
Solution
This error indicates that SP tries to do a back channel logout using the SOAP SingleLogoutEndpoint described in the IDP Metadata of Ubisecure SSO, but the server does not respond. This is usually due to a firewall which blocks the traffic between SP and IDP.
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