On 10/31/2011 6:58 AM, Kristen Eisenberg wrote:
Ben Croswell writes:
> In that case technically you are creating undelegated subdomains for
each
> router.
> The dot is a delimiter and can't be part of a hostname.
>
I was thinking you are wrong.
Period is somewhat permitted in a hostname.
People are using "hostname" to mean different things.
If "hostname" is interpreted to mean "the string that one device uses to
represent another so that the two of them can communicate", then
obviously whether dots are permitted in hostnames, will depend wholly on
what mechanism translates the string into a network address: if the
mechanism is DNS, or an /etc/hosts file, then dots are permitted in the
string; in the case of other name-resolution mechanisms (e.g. NetBIOS
name resolution?), dots may or may not be supported.
If, on the other hand, "hostname" is interpreted to mean "everything
preceding the first dot in the standard representation of the network
entity", then by definition such a "hostname" will not, and cannot
contain a dot.
- Kevin
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