Berkeley description: No such host is known. The name
you have used is not an official hostname or alias. This is not a soft
error, another type of name server request may be successful.
WinSock description: Same as Berkeley. Any of the
WinSock name resolution functions can fail with this error. The WinSock
API does not provide any way to select specific name resolution
protocols, server address, or record type.
TCP/IP scenario: Most WinSock implementations use domain
name system (DNS) protocol for hostname to address resolution, although
a few use Network Information System (NIS). Assuming you have a name
server configured instead of or as well as a host table, a hostname
resolution request causes a WinSock DLL to send a DNS "A"
record query (address query) to the configured DNS query. If you have
more than one server configured, the hostname query fails only after the
WinSock DLL has queried all servers.
User suggestions: Check that you have a name server(s)
and/or host table configured. If you are using a name server(s), check
whether the server host(s) are up (e.g. try to ping the server(s)). You
could also try to resolve another hostname you know should work, to
check that the name resolution server application is running.
If you are using a host table exclusively, you'll need to update
it to add the destination hostname and address.