Node secret mismatch: agent and server using different node secrets when authenticating from Citrix Web Interface 5.4 with the RSA Authentication Agent for Windows to RSA Authentication Manager
Originally Published: 2014-03-31
Article Number
Applies To
RSA Product/Service Type: Authentication Manager
RSA Version/Condition: 8.x, 7.1
Platform: Authentication Agent for Windows
RSA Version/Condition: 7.2.1
Issue
- Unable to log on to the Web Interface using RSA Authentication Agent 7.2.1 for Windows local authentication client for two-factor authentication.
- The event log might contain one of following messages:
There was a problem with the RSA SecurID ACE/Agent. Check that the ACE/Agent is installed correctly.
- The following ASP.NET warning:
An exception named System.BadImageFormatException or System.Web.HttpUnhandledException was unhandled.
- When authenticating from the Citrix Web Interface, the following error messages appear on the RSA Real Time Authentication Activity Monitor:
- Node secret mismatch: agent and server using different node secrets.
- Verifying node secret for agent <agent_name> with IP address <IP_address_of_agent>. in security domain SystemDomain."
Cause
There are three possible causes for this issue:
- On 64-bit operating systems, the default Web Interface application pool is configured for 32-bit applications, preventing the Web Interface from using 64-bit RSA Authentication Agent for Web for Internet Information Services files.
- The Web Interface is unable to locate the RSA Authentication Agent on the Web server.
- The node secret used to ensure secure communication between the Web Interface and the RSA Authentication Manager is no longer in synch.
Resolution
To enable 64-bit applications in the Web Interface application pool
- On the Web server, open the MMC Internet Information Services (IIS) Manager snap-in.
- Select your Web server in the left pane and, in the Action pane, click View Application Pools.
- Select the Web Interface application pool and, in the Action pane, click Advanced Settings.
- On the General tab, set Enable 32-Bit Applications to False and click OK.
On 64-bit operating systems only, copy the sdconf.rec, nodesecret.rec, and securid files to the following three locations:
- C:\Windows\System32
- C:\Windows\SysWOW64
- C:\Program Files\Common Files\RSA Shared\Auth Data
To enable the Web Interface to locate the RSA Authentication Agent,
- Add the path to the file aceclnt.dll file that is typically located in the C:\Program Files\Common Files\RSA Shared directory, to the PATH environment variable in Windows.
- Reboot the server.
- Try to authenticate from the Citrix Web Interface
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