Microsoft KB Archive/101746

= TCP/IP Hosts File Is Case Sensitive =

Article ID: 101746

Article Last Modified on 11/1/2006

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APPLIES TO


 * Microsoft Windows NT Advanced Server 3.1
 * Microsoft Windows NT Workstation 3.1
 * Microsoft Windows NT Advanced Server 3.1

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This article was previously published under Q101746



The hosts files for Windows NT TCP/IP are not case sensitive when you enter the name of a workstation for a TCP/IP address for Windows NT 3.5 and higher.

The hosts 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 hosts 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 query words: prodnt

Keywords: kbnetwork KB101746

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