[wellylug] Debian message

[John Durham]

Daniel Pittman wrote:
> John Durham <john.modec at xtra.co.nz> writes:
>> Daniel Pittman wrote:
>>> Lee Begg <llnz at paradise.net.nz> writes:
>>>> On Sat, 10 Oct 2009 15:40:43 John Durham wrote:
>>>>
>>>>> I just started up my Debian web server after a few days down. The domain
>>>>> name was being renewed, so the hardware took a rest for a while. It
>>>>> produced this message: etth0: No IPV6 routers present.
> 
> [...]
> 
>>> The one thing I would note is that this indicates that IPv6 is enabled on the
>>> server.  Aside from the router stuff, there will *also* be an automatically
>>> generated link-local IPv6 address.
>>>
>>> This means that any other machine on the same physical network segment can
>>> talk to your server via IPv6, and your IPv4 firewall will not have any
>>> influence over that.
>>>
>>> This may, or may not, be a problem, but it is better that you are aware of the
>>> situation so you can assess the (lack of) risk for yourself.
>> This is the first suggestion I've heard abut such a possibility. Would
>> hardly know where to start looking for data about it.
> 
> You can read about IPv6 here: http://en.wikipedia.org/wiki/Ipv6
> 
> The "stateless autoconfiguration" and "link-local addresses" segments will
> document the nature of the traffic stuff.
> 
> 
> Beyond that, ip6tables is the equivalent tool to iptables, and shares an awful
> lot of firewall stuff in recent kernel versions.  You should, at works, be
> able to simply block all IPv6 traffic, worst case.
> 
>         Daniel
If I am reading this right it suggests things like server updates could 
be performed in house or from a remote location. If that is correct, 
there must be some sort of tool for using it from a windows environment 
to a Linux one. Is that correct?

-- 
Regards, John Durham <http://modecideas.com/contact.html?sig>
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