This article explains how to resolve an HTTP 401 error when accessing the GSX Web Enabler site. This error is caused by improper access rights to read configuration files that are hosted on the monitoring station via Internet Information Services (IIS). Follow the below steps to change the access rights to allow Anonymous Authentication in IIS for the GSX Web Enabler site.
IIS 7+ | Web Enabler
- The GSX Monitor Web server is not responding or disconnected.
- You're not authorized to access the GSX Monitor Web server or the maximum number of sessions is reached (please note that each connection requires several sessions).
java.io.IOException: Server returned HTTP response code 401 for URL: http://your_server_name/Monitmv.txt
How to Solve the Issue
Enabling Anonymous Authentication in IIS from the station hosting the GSX Web Enabler site
- Open the IIS management console by running inetmgr.exe
- In the left pane (Connections), navigate to the GSX Web Enabler site (formally Moniweb).
- In Features View, double-click Authentication.
- From the Authentication page, select Anonymous Authentication.
- In the right pane (Actions), select Enable.
- Re-launch your GSX Web Enabler page.
GSX Web Enabler now loads correctly.
Information from Microsoft in regards to enabling Anonymous Authentication in IIS:
- Anonymous authentication allows any user to access any public content without providing a user name and password challenge to the client browser. By default, Anonymous authentication is enabled in IIS 7.
- If some content should be viewed only by selected users, you must configure the appropriate NTFS permissions to prevent anonymous users from accessing that content.
- If you want only registered users to view selected content, configure an authentication method for that content that requires a user name and password, for example, Basic or Digest authentication.