1 Reply Latest reply on Jul 7, 2015 11:56 AM by TSGal

    CSS Images (Buttons/Colors) Break without Reverse DNS setup on IP address

    foxtailtech

      Summary

      CSS Images (Buttons/Colors) Break without Reverse DNS setup on IP address

      Product

      FileMaker Server

      Version

      14.0.1.204

      Operating system version

      Server 2012 R2, Server 2008 R2

      Description of the issue

      When Use SSL for Progressive Downloading is checked, AND  Reverse DNS isn't configured on the IP address of the server, FileMaker Server will use the server IP address, rather than the FQDN, to serve out CSS graphics (glyphs, colors). This of course causes an SSL validation issue with the browser and the graphic is not shown.

      Steps to reproduce the problem

      1.) Turn on SSL, and import your Cert.
      2.) Check the box, Use SSL for Progressive Downloads
      3.) restart database engine
      4.) Clear browser cache or open an incognito browser window. (gets rid of cached images)
      5.) open FMServer_Sample File in WebDirect in a browser

      Expected result

      Everything should come through using the FQDN typed into the browser and be encrypted via SSL.

      Actual result

      Glyph icons and color fills will not come through (images rendered by FileMaker CSS). You can turn on the browsers developer tools and look at network. You see that the connection is aborted do to SSL mismatch. CSS graphics are delivered over server IP address rather than FQDN.

      Exact text of any error message(s) that appear

      SEE Attached Image

      Workaround

      I can either set reverse DNS to be the same as the FQDN of the server/SSL (IE SSL is registered to server1.domain.tld and reverse DNS is set to the same value) and edit the server deployment to remove web publishing, then edit it again and put it web publishing back in.

      The other, is you can stop the FileMaker Server Process, edit the Server_Config.XML in the path of C:\Program Files\FileMaker\FileMaker Server\Admin\conf and replace the IP addresses with the FQDN. I believe updates and edit deployments will break this.

      This issue exists in FileMaker 13 Server as well (but the Server_Config.xml is encoded in server 13).

      A good number of ISP's will not allow rDNS to be setup.

      Screen_Shot_2015-05-18_at_11.43.09_AM.png

        • 1. Re: CSS Images (Buttons/Colors) Break without Reverse DNS setup on IP address
          TSGal

          Angelo Luchi:

          Thank you for your post, and I apologize for the late response.

          I know some time has passed, so I don't know if you have found a resolution.  If not, before anything else, update to FileMaker Server 14.0.2.

          I am unable to test as I don't have a non-FileMaker supported certificate.  I have sent all of your information including the screenshot to our Development and Testing departments for review.  When I receive any feedback, I will let you know.

          TSGal
          FileMaker, Inc.