Alfresco NTLM Authentication fails

  • 1 year ago
Comment

ChatGPT
1 / 1

Alfresco supports various authentication methods, including NTLM (Windows Integrated Authentication), for accessing its services. If NTLM authentication is failing, there could be several reasons behind it. Here are some steps to troubleshoot and resolve the issue:

  1. Check Configuration:
    Ensure that NTLM authentication is properly configured in Alfresco. Verify the alfresco-global.properties file and make sure that the NTLM authentication subsystem is enabled and configured correctly.

  2. Domain and Server Names:
    Double-check the domain and server names used in your NTLM configuration. They should match your network environment.

  3. Server Time Synchronization:
    NTLM authentication relies on time synchronization between the client and server. Make sure that the clocks of your Alfresco server and the client (e.g., browser) are reasonably synchronized.

  4. Browser Configuration:
    Some browsers might have settings that affect NTLM authentication. Ensure that the browser you're using is configured to allow Windows Integrated Authentication and that the site is in the "Local Intranet" zone.

  5. Alfresco Logs:
    Check the Alfresco logs (catalina.out, alfresco.log, etc.) for any error messages related to NTLM authentication. These logs can provide valuable insights into what might be causing the issue.

  6. Firewall and Proxy Settings:
    If you're accessing Alfresco from outside your network, firewall or proxy settings could impact NTLM authentication. Make sure that necessary ports are open and proxies are configured properly.

  7. Windows Group Policies:
    Windows Group Policies can influence NTLM authentication behavior. Ensure that the policies related to NTLM authentication are not causing conflicts.

  8. SSL Configuration:
    If your Alfresco instance is using SSL, ensure that SSL certificates are correctly configured and trusted on both the client and server sides.

  9. Browser Extensions/Add-ons:
    Some browser extensions or add-ons might interfere with NTLM authentication. Try accessing Alfresco with a clean browser profile or in incognito mode.

  10. Clear Browser Cache:
    Clear your browser cache and cookies, as cached credentials might cause authentication issues.

  11. Test on Different Browsers/Devices:
    Sometimes NTLM authentication might work differently on different browsers or devices. Test on multiple browsers and devices to identify if the issue is browser-specific.

  12. Contact Alfresco Support:
    If you've exhausted your troubleshooting efforts and the issue persists, consider reaching out to Alfresco support for assistance. They can provide guidance specific to your environment.

Remember that troubleshooting NTLM authentication issues can be complex and involve multiple components. It's important to systematically go through the steps, eliminate possible causes, and ensure that configurations are accurate and aligned.