[ale] How to test your public internet connection for open ports

Michael H. Warfield mhw at WittsEnd.com
Wed Feb 23 23:27:45 EST 2011


On Wed, 2011-02-23 at 16:03 -0500, Ben Coleman wrote: 
> On 2/12/2011 1:38 PM, Michael H. Warfield wrote:
> > Static addresses:
> > Addresses manually assigned just like IPv6 (DON'T DO IT).

> I think you meant 'just like IPv4' here, but I'm wondering: what do you
> do for machines intended to provide services outside your own network?
> You would manually assign addresses to them, wouldn't you?  (or am I
> missing the context here?)

Yeah, I typo'ed there.  My bad.  I'm actually surprised your the first
to catch it (or call me on the carpet for it).

1) bring the up on IPv6.

2) Stick the address in DNS.

host www.ip6.wittsend.com
2001:4830:3000:2:204:8ff:fe00:1151

Do you really think I assigned that damn thing?  The MAC address is not
going to change.  That address has been assigned going on over a half a
decade (and the EUI hasn't changed in over decade through 3 provider
changes).

> Ben


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Michael H. Warfield (AI4NB) | (770) 985-6132 |  mhw at WittsEnd.com
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