Oracle Access Manager (OAM) Login Fails 400 Bad Request After Submitting Credentials
(Doc ID 2474746.1)
Last updated on SEPTEMBER 02, 2021
Applies to:Oracle Access Manager - Version 188.8.131.52.0 and later
Information in this document applies to any platform.
Login Fails 400 Bad Request After Submitting Credentials (/oam/server/auth_cred_submit) via a Load Balancer
Oracle Access Manager (OAM)
2 OAM Servers in a cluster, listening on SSL Port for <MANAGED_SERVER_PORT>
2 OHS Servers with WebGate. The 2 OHS Servers listen on <SSL_PORT>
mod_wl_ohs.conf (WLS Proxy Plugin) configured to forward /oam requests to the 2 OAM Servers in the cluster
1 Load Balancer in front of the 2 OHS Servers, listening on <SSL_PORT>
OAM Server host in Access Manager Settings set to LOAD BALANCER Host and <SSL_PORT>
Steps to reproduce
1. Access the protected URL via the Load Balancer: http://<LBR-HOSTNAME>.<DOMAIN>:<PORT>/<FILE_NAME>
2. User is redirected to OAM for authentication. However, the OOTB login page loses all formatting.
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