Re: Strange Mac showing up on Shared list

2011-07-07 Thread Bruce Johnson

On Jul 7, 2011, at 10:46 AM, Jane, (Portland, OR) wrote:

> 
> I checked the PowerBook and MacBook Pro System
> Preferences>Network>Airport. The Airport tab has Airport, TCP/IP,
> DINS, WINS, etc... No strange address on the PB. But I discovered this
> on the MBP: under WINS>NetBIOS Name>MACD49a20b8ac90. It says
> "MACD49a20b8ac90 is currently being used".
> 
> So. the MBP seems to have 2 addresses. Why? Should I get rid
> of the WINS? Or just leave everything alone?

Are you doing any Windows sharing with the Mac? That's what WINS is for, and 
might be why it's showing up twice. 

(or are you running Windows on a VM on that system? the WINS setting may be 
connected to that.)

You need to look at the Airport ID on the Airport tab. I'll bet it's that 
d4:9a:20:b8:ac:90 mystery address.

IN the main, so long as you can confirm (and you seem to have) that it's one of 
your macs doing this, my inclination would be: 'if it ain't broke, don't fix 
it'.




-- 
Bruce Johnson
University of Arizona
College of Pharmacy
Information Technology Group

Institutions do not have opinions, merely customs


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Re: Strange Mac showing up on Shared list

2011-07-07 Thread Jane, (Portland, OR)
On Jul 6, 3:07 pm, "Jane, (Portland, OR)" 
wrote:
> Stats: PowerBook G4 (10.4); MacBook Pro (10.5); iMac (10.6)
>
> I have enabled Sharing with all 3 Macs. When I open the Finder window,
> the sidebar shows a list of computers under Shared. Since I use the
> iMac most, I see the MBP and PB. BUT another Mac has shown up! It is
> listed as macd49a20b8ac90. I have no idea who/what this computer is!
> I did a Get Info and the icon of an older screened Mac shows up and no
> other info. This invader is not always listed, as I thought it might
> be tied to the MBP or PB.
>
> I downloaded iStumbler, thinking I could find out more about this
> intruder. However, macd49a20b8ac90 does not show up. iStumbler has has
> 5 listings in the sidebar:
> Airport (shows my network and my neighbor's Windows network),
> Bluetooth (shows my mouse and MBP);
> Bonjour (shows local> jane_sprandos-macbook-pro, G4PowerBook and
> Jane's-Intel-iMac)  does NOT show anything about macd49a20b8ac90,
> Location (shows my network and neighbors)
> Log (does not show anything macd49a20b8ac90)
>
> Can anyone tell me who, what, where, how, or why this Mac is showing
> up?
>
> Jane

I checked the PowerBook and MacBook Pro System
Preferences>Network>Airport. The Airport tab has Airport, TCP/IP,
DINS, WINS, etc... No strange address on the PB. But I discovered this
on the MBP: under WINS>NetBIOS Name>MACD49a20b8ac90. It says
"MACD49a20b8ac90 is currently being used".

So. the MBP seems to have 2 addresses. Why? Should I get rid
of the WINS? Or just leave everything alone?

Jane

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Re: Startup Sequence

2011-07-07 Thread t...@io.com


On Jul 6, 2:27 pm, Iamanamma  wrote:
> > Try deleting "Appleshare Prep" in the preferences folder.

> IIci (NOT easy to find in working condition any more) and a couple of
> IIsi.

>   As IIci  and IIsi get harder
> to find, my boss might have some interest in that.

Almost all non-working IIci's need the capacitors replaced on the
logic board.   As time passes, pretty much all of them are going to
need this.   So any IIci's you buy are either going to need to have it
done, or have already had it done.   If you have failed IIci's that's
likely to be the problem.

Of course, the other likely problem is failed power supplies, but
since those are easily swappable, that's pretty obvious from a trouble-
shooting point of view.

Anyway, replacing the capacitors is not especially difficult.  In an
industrial environment such as yours, I would be surprised if you
don't have several people who are handy with a soldering pencil.

Much discussion of replacing the logic board capacitors is available
in the forums over on 68kmla.net.

The gist is:

1)  The surface mount electrolytic capacitors leak corrosive goo
eventually.
2)  The corrosive goo can destroy circuit board traces and vias and
appears to be at least somewhat electrically conductive, as evidenced
by the fact that washing it off is often enough to get a board working
again, temporarily.
3)  Replace the surface mount electrolytics with surface mount
tantalums.  They won't leak goo.
4)  The stripe on the electrolytics indicates the negative terminal.
The stripe on the tantalums indicates the positive terminal.  The
confusion from this has resulted in many popped tantalums.
5)  If you don't have special soldering equipment, the easiest way to
remove the surface mount capacitors is to use two soldering pencils.
One on each side of the cap to be removed.
6)  Be patient!  Most lifted pads and torn traces are caused by folks
trying to remove a capacitor before the solder is fully melted or any
glue underneath is softened.

Jeff Walther

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