DOCUMENT:Q239449 16-JUL-2001 [iis] TITLE :Err: Internet Explorer Can't Open the Site Https://... PRODUCT :Internet Information Server PROD/VER::4.0,5.0 OPER/SYS: KEYWORDS: ====================================================================== ------------------------------------------------------------------------------- The information in this article applies to: - Microsoft Internet Information Server versions 4.0, 5.0 ------------------------------------------------------------------------------- SYMPTOMS ======== When you use Server Gated Cryptography (SGC) certificates, the client attempting to access the site with the HTTPS protocol may receive the following error message: IIS 4.0: Internet Explorer can't open the site https:// The supplied certificate is invalid. IIS 5.0: The page cannot be displayed. Cannot find server or DNS Error. CAUSE ===== This is by design. Unlike non-SGC certificates, which allow the user to accept a situation where the name used in the certificate does not match the name used in the URL accessing the site, SGC certificates require that the names match. If the names do not match, the error message is returned instead of a dialog box. WORKAROUND ========== To work around this issue, do the following: 1. Get a SGC certificate, which has a common name that matches the DNS name of the Web site. 2. Make a hosts file entry on the client computer to ensure that the common name is used. Additional query words: verisign ====================================================================== Keywords : Technology : kbiisSearch kbiis500 kbiis400 Version : :4.0,5.0 Issue type : kbprb Solution Type : kbpending ============================================================================= THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY NOT APPLY. Copyright Microsoft Corporation 2001.