DOCUMENT:Q101746 26-JUL-1993 [W_NT] TITLE :TCP/IP Host File Is Case Sensitive PRODUCT :Windows NT PROD/VER:3.10 OPER/SYS:WINDOWS KEYWORDS: ---------------------------------------------------------------------- The information in this article applies to: - Microsoft Windows NT operating system, version 3.1 - Microsoft Windows NT Advanced Server, version 3.1 ---------------------------------------------------------------------- The host files for Windows NT TCP/IP are case sensitive when you enter the name of a workstation for a TCP/IP address. This can cause errors when attempting to use FTP or ping a workstation/server. Always match host filenames exactly, including any case changes. If the host file contains the entry 130.25.25.83 TestServer type in the following command: ping testserver The following error message appears: testserver: unknown host The command should read: ping TestServer With the case sensitive command, the following correct response occurs (if the address is valid): Pinging host TestServer : 130.25.25.83 ICMP Echo Reply:TTL 60 ICMP Echo Reply:TTL 60 ICMP Echo Reply:TTL 60 ICMP Echo Reply:TTL 60 Host Almathea replied to all 4 of the 4 pings Additional reference words: 3.10 KBCategory: KBSubCategory: TPIP ============================================================================= 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 1993.