Having trouble with a second NIC in an OS X server

[DallasH]

I enabled the second NIC on my OS X server, now I'm not sure all my
services are bound to the both adapters. They are on separate IP
networks, and I should be able to "see" its web pages from either
network, as well as ftp/rtsp, etc.

But it seems to get some stuff to work properly, I have to disable the
original NIC.

Any thoughts or suggestions, or where I should look for reference
material?


Thanks for any help you can provide.

Dallash

[Peter KERR]

In article <642f4208.0309021433.246ea4f3@posting.google.com >,
[email]dallasharmon@aristotle.net[/email] (DallasH) wrote:

> I enabled the second NIC on my OS X server, now I'm not sure all my
> services are bound to the both adapters. They are on separate IP
> networks, and I should be able to "see" its web pages from either
> network, as well as ftp/rtsp, etc.
>
> But it seems to get some stuff to work properly, I have to disable the
> original NIC.
>
> Any thoughts or suggestions, or where I should look for reference
> material?

Sorry for a me too :-( but Apple's User Manuals don't really have enough
detail, and the man pages refer to stuff not implemented in OS-X & v.v.

I just had an old beige G3 die and want to transfer its web and
QuickTime Streaming (both running on desktop OS-X) into an X-Serve
running OS-X-Server.

To avoid DNS/url confusion I thought I'd alias the old box's IP nr onto
the X-Serve main port en0. The second port, like yours, is firewalling a
lab of student machines. You have to set up natd & ipfw. Turn off
Apple's Firewall and use Fred's from

[url]http://xdeb.org/fredrik/comp/download.phtml[/url]

However, IP aliasing apparently is only to add redundancy to the system.
System Preferences -> Network -> TCP/IP -> Show: Network Port
Configurations has a list of available ports and configs.

I can add an extra IP nr to any port,
I can click and drag items to change their order,
what then happens is that the system uses that order as a priority
rating based on availability. If the item at the top of the list is up
and running all services will attempt to run out of that port. This is
even if I have bound a service to an IP nr in eg.
/etc/httpd/httpd.conf, or
/Library/QuicktimeStreaming/Config/streamingserver.xml

But wait, it gets worse: in the Terminal ifconfig
will show what it believes is the current configuration of your network
ports with IPv6 and IP numbers, speed, duplex, etc

netstat -r will give the routing information for established routes,
including which port each is bound to.

Each of these is giving me conflicting answers...

[Kevin McMurtrie]

In article <642f4208.0309021433.246ea4f3@posting.google.com >,
[email]dallasharmon@aristotle.net[/email] (DallasH) wrote:

> I enabled the second NIC on my OS X server, now I'm not sure all my
> services are bound to the both adapters. They are on separate IP
> networks, and I should be able to "see" its web pages from either
> network, as well as ftp/rtsp, etc.
>
> But it seems to get some stuff to work properly, I have to disable the
> original NIC.
>
> Any thoughts or suggestions, or where I should look for reference
> material?
>
>
> Thanks for any help you can provide.
>
> Dallash

For listening -

IP address: listen on specified address
127.0.0.1: listen only on 127.0.0.1 from localhost virtual interface
0.0.0.0: listen on all addresses


OSX doesn't divide up outbound traffic. It starts with the first
adaptor and works its way down the list until it finds a route. The
working route is memorized for future connections.