[bind10-dev] Convention when specifying address and port

[Shane Kerr]

Stephen,

On Wed, 2011-07-06 at 10:12 +0100, Stephen Morris wrote:
> Two forms currently in use in BIND 10 are:
> 
> address#port	192.0.2.1#53	2001:db8::1#53
> address(port)	192.0.2.1(53)	2001:db8::1(53)
> 
> Also suggested is
> 
> [address]:port	[192.0.2.1]:53	[2001:db8::1]:53

For the record, my own preference is to use the same style as URLs:

    192.0.2.1:53
    [2001:db8::1]:53

It is slightly inconsistent, but it follows a standard.

This is from RFC 2396:

http://www.ietf.org/rfc/rfc2396.txt

      hostport      = host [ ":" port ]
      host          = hostname | IPv4address
        ...
      IPv4address   = 1*digit "." 1*digit "." 1*digit "." 1*digit
      port          = *digit

And from RFC 2732:

http://www.ietf.org/rfc/rfc2732.txt

   To use a literal IPv6 address in a URL, the literal address should be
   enclosed in "[" and "]" characters

--
Shane