Thanks Mister Blue!
I indeed noticed that the InternalAddress ONLY accept IP addresses. I
can live with that. But I think the use of FQDN is more handy specially
when your running in a big network and like to use backup servers that
in case of emergency a fast switch by changing DNS traffic can be
rotated more quickly to an other server. It is a common setup that is
used frequently.
My problem is the ExternalHostname parameter. I try to use FQDN there
but it didn't work. I try to resolve the FQDN and the reverse IP address
with DIG and that worked well. I run the latest stable opensim version
on Ubuntu. If you say it should work then it must be something else. I
assume that 'Dns.GetHostAddresses() is looking at the /etc/Resolv.conf?
John
Mister Blue schreef op 2016-02-25 04:05:
> Looking at the code (Regions.ini is parsed in the source file RegionInfo.cs),
> 'InternalAddress' is parsed with "address =
> IPAddress.Parse(config.GetString("InternalAddress", String.Empty));" which
> means it expects a ipv4, three dot address for that parameter.
>
> 'ExternalHostname', though, is kept as a string. When some module accesses
> 'RegionInfo.ExternalEndpoint', the code checks to see of the name is an ipv4
> address and, if not, it calls 'Dns.GetHostAddresses()' which should look up
> the external hostname with DNS. The code throws an exception if it cannot
> resolve the DNS name.
>
> Not sure how well the .NET Dns class works. Is it possible your hostname does
> not lookup on the system?
>
> == mb
>
> On Wed, Feb 24, 2016 at 8:43 AM, Shaun T. Erickson <[email protected]>
> wrote:
>
> BTW, you keep saying FCDN. The correct term is FQDN, for Fully Qualified
> Domain Name.
>
> Sent from my iPhone
>
> On Feb 24, 2016, at 11:16 AM, silverj <[email protected]> wrote:
>
> Thanks STE,
>
> But that didn't work. I used already FCDN in all configuration files. Only in
> Regions.ini I get an error message when I use FCDN. It only allow me to put
> in IP addresses...
>
> John
>
> Shaun T. Erickson schreef op 2016-02-24 00:04:
> I have used an FQDN everywhere in Sanctuary's configuration, for many years
> now. Basically, the rule of thumb has been that you either have to use IP
> addresses everywhere, or use an FQDN everywhere, because OpenSim does string
> comparisons in places where you might expect an IP address to get resolved
> first, except that it doesn't. In other words, in a comparison, it will, for
> example, not consider 65.78.40.167 to be the same as sanctuary.homelinux.org
> [1], even though they are equivalent.
>
> I do not, however, do split DNS, so I can't speak to that. I do run my grid
> behind a firewall, with no issues, though.
>
> -ste
>
> Sent from my iPhone
>
> On Feb 23, 2016, at 5:51 PM, silverj <[email protected]> wrote:
>
> I hope this problem can be solved. I am owner of SIMVALLEY
> (http://www.simvalley.nl [2]) and are running my grid behind a FW. Since I
> started SIMVALLEY more the 6 years ago I had always put the IP address in as
> ExternalHostName. I have seen more questions in the past about this but dont
> remember to see a solution.
>
> I am running split DNS so it is for security reason more handy to use FCDN in
> the Regions.ini then IP addresses. Is it possible to implement in the next
> version the Full Qualified Domain Name instead of the IP address?
>
> It will help a lot and makes running a grid behind a FireWall and Split DNS
> much more easier and confirm the way other services are used on the Internet.
>
> With regards,
>
> John
>
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Links:
------
[1] http://sanctuary.homelinux.org
[2] http://www.simvalley.nl/
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