From owner-freebsd-questions@FreeBSD.ORG  Wed Sep 12 17:20:27 2007
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Date: Wed, 12 Sep 2007 18:20:21 +0100
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Subject: Re: a small problem with /etc/hosts in FreeBSD 6.2
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On Wed, 12 Sep 2007 15:33:24 +0000
Pollywog <lists-fbsd@shadypond.com> wrote:

> in my hosts file, I have a line that looks like this:
> 
> ::1                    localhost localhost.mydomain.com
> 
> 
> Is this line for IPv6 or is there some other reason for its
> presence?  It causes occasional problems, so I commented it out and I
> kept a similar line that points to 127.0.0.1
> 

::1 is the IPv6 address for localhost  IPv6 address often
contain a long run of zeroes, so :: an abbreviation for this.