[Opensim-users] NAT & Corporate Firewall

[Diva Canto]

On 4/4/2011 9:23 PM, Gary Beck wrote:
> Diva Canto wrote:
>> DNS resolution is made by the client. The server simply passes the 
>> name over. Make sure to use domain names consistently in all 
>> configuration files.
> ----------------------------------------------------------------------
> My testing seems to show the IP address rather than domain name is 
> passed to the client for region/UDP.
>
> I have one region using ExternalHostName=SYSTEMIP and the others using 
> ExternalHostName=something.dyndns-mail.com
> I run Opensim 0.7.0.2 on a VISTA system, stand alone mode, client 
> access both local and external, NAT loopback on.
> All that works fine.

SYSTEMIP is an IP address. If that's what you have, that's what will be 
sent to the client.
I suggest people people use domain names everywhere for ExternalHostName 
and do local DNS mapping if necessary -- this may be needed in home 
networks.

> One other item I found that suggests IP addresses are being passes 
> rather than domain names is the Entity Transfer Module entries in the 
> server log
> 2011-04-04 22:24:53,759 INFO  - 
> OpenSim.Region.CoreModules.Framework.EntityTransfer.EntityTransferModule 
> [ENTITY TRANSFER MODULE]: Starting to inform client about neighbour 
> 999, 999(174.124.181.36:9009)

This has nothing to do with client communications -- it's the backend 
server-to-server communications for handing the agent over to the other sim.