what's a valid domain name?

2011-10-31 Thread Kristen Eisenberg
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. 


Kristen Eisenberg
Billige Flüge
Marketing GmbH
Emanuelstr. 3,
10317 Berlin
Deutschland
Telefon: +49 (33)
5310967
Email:
utebachmeier at
gmail.com
Site:
http://flug.airego.de
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Re: what's a valid domain name?

2011-10-31 Thread Ben Croswell
Actually a . is not part of a host name. It separates all the parts of
FQDN. If you put one in a host name you have an undelegated subdomain as I
stated before.

-Ben Croswell
On Oct 31, 2011 6:59 AM, Kristen Eisenberg kristen.eisenb...@yahoo.com
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.

 Kristen Eisenberg
 Billige Flüge
 Marketing GmbH
 Emanuelstr. 3,
 10317 Berlin
 Deutschland
 Telefon: +49 (33)
 5310967
 Email:
 utebachmeier at
 gmail.com
 Site:
 http://flug.airego.de - Billige Flüge vergleichen

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Re: what's a valid domain name?

2011-10-31 Thread Kevin Darcy

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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