[X-Unix] Altering system parameters (e.g. IP addresses) on MacOSXserver

[Eric F Crist]

Ok Ken, as promised:

You should have a command called networksetup.  This allows you to  
change all(most?) of the settings you would find in the network  
preference pane.  To permanently change the static IP address of a  
given system, run the following command:

# networksetup -listallnetworkservices

This command will list all your network ports.  Why you have to call  
them by their name escapes me, but whatver.

Next, run the following command:

# networksetup -setmanual <network_service> <new_ip> <new_mask>  
<default_router>

The only funk above is the network_service item.  This is really just  
the network adapter's name.  So, to set an IP of 10.0.0.2 with a  
subnet of 255.0.0.0 and a default route of 10.0.0.1 on my MacBook  
Pro's ethernet address, I'd do the following:

# networksetup -setmanual Ethernet 10.0.0.2 255.0.0.0 10.0.0.1

Note, you've gotta be root (or sudo it).

This **WILL** persist through reboots.
HTH
Eric


On Mar 9, 2008, at 3:58 PM, Ken Rossman wrote:

> Eric,
>
>> Ken, if you can give me a few hours, I'll get you the complete  
>> answer.
>
> Thanks...  that would be useful.  Awhile back, I took a class in Mac  
> OS X server
> admin, and still have the books.  Just not sure right now where  
> those are, but
> I would think the answer is in there.  I remember issuing a whole  
> lot of
> (Apple-ish) long and mixed-case command line incantations to do  
> various things
> with various system tables and such.  Just don't recall any  
> particulars.
>
> Glad to see things on Mac OS X moving a good bit more in the  
> direction of being
> "Linux-ish" or generally "Unix-ish" in any case...
>
>> You lost your connection because the server IP changed. Connect  
>> with the new
>> IP and you should be fine.
>
> Ah, but that was exactly what I did, and it did not work.  I had my  
> PowerBook
> direct-ether-connected point-to-point to the server, and was able to  
> ssh in
> using the old address range.  issued the ifconfig command (adding in  
> specific
> broadcast and netmask fields as well as the IP address change), then  
> changed
> the PowerBook interface address to be in the same subnet range as  
> what I just
> changed the server to, but no luck.
>
> I know I must have just done something stupid, but I'm not spotting  
> it.
>
>> I'll get you the permanent fix when I'm at a terminal and not my  
>> blackberry. :)
>
> OK, I'll take you up on that!  :-)
>
> Thanks,
> K
>

-----
Eric F Crist
Secure Computing Networks