Interesting stuff Ronni. I have no wish or desire to become
embroiled in Terminal but started it up as you suggest to check the
Computer name. Here is what I got
Last login: Sat Sep 26 08:36:07 on console
SevsG5:~ sev$
The name is correct but the last (recent) login is mysterious - I
cannot remember opening Terminal before.
Severin
On 09/10/2009, at 2:36 PM, Ronda Brown wrote:
On 08/10/2009, at 9:26 PM, Daniel Kerr wrote:
There was a way to reset it via Terminal with a "permanent" set,
but as
mentioned you had to do that in Terminal. I found it on google
somewhere, so
would need to refind it if anyone wanted.
Ok Daniel, you got me curious, so I have been "fiddling" around in
Terminal (after doing some reading on Terminal from my many books).
Now, I DON'T recommend people "fiddle" around in Terminal,
especially if you don't know what you are doing.
WARNING: Please don't attempt this until someone much more
knowledgeable than I, confirms that this is safe and does work.
Ronni is certainly NOT a Terminal Guru!
Now the legalities of this post are over with, this is what I did:
When you Launch Terminal, the default shell "Bash" will present the
last login time, followed by the command prompt.
This is formatted to show the computer's name, followed by the
current directory and then a dollar sign.
Depending on the system and network configuration, the computer's
name may change.
My hostname is "Rons-500GB-HD" (without the quotes)
The computer's host name is the one you type in the "Sharing" system
preferences, and while a change in the hostname should not affect
the performance of the machine, it is nice to have it be consistent.
The first thing I tried is to use the "hostname" command to change
the hostname:
1. Launch Terminal
2. I typed sudo hostname TEST
3. Hit Return
4. Typed my password
5. Hit Enter
Then Quit Terminal and logged in again to see the change had taken
place.
Yes, it had.
So then I moved on to changing it back to Rons 500GB HD which is the
one I want to keep from changing.
As Daniel has previously said, the hostname can be changed
dynamically by routers and other network devices through DHCP
requests, which can have the hostname keep changing every time your
IP address and other DHCP information is renewed.
If this is the case, you may be able to set the router to never
provide hostname information, or you can set the computer to never
accept a hostname change.
To do this, you will need to add a line to the computer's hostconfig
file using the following procedure:
1. Open the Terminal
2. Enter the following command:
sudo pico /etc/hostconfig
3. Authenticate, scroll to the bottom of the file, and add the
following line:
HOSTNAME=Rons-500GB-HD
(Change "Rons-500GB-HD" to your desired hostname--no spaces)
4. Save the file and quit by pressing control-X, confirming the
save with the "Y" key followed by "enter".
5. Quit Terminal
After this has been added to the file, the computer's hostname
should not change even when you renew your DHCP lease.
This is yet to be confirmed ... I await in trembling anticipation of
Daniel's reply ... or any other of our Terminal Gurus ;-)
My MacBook Pro has not "blown up", Rons 500GB HD is showing in
Sharing and in Terminal ... and I'm still connected to the Internet.
Cheers,
Ronni
17" MacBook Pro Intel Core 2 Duo
2.4 GHz / 4GB / 800MHz / 500GB
OS X 10.6.1 Snow Leopard
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Assoc Professor R Severin Crisp, FIP, CPhys, FAIP
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