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Re: [PLUG] Annoying OSX? network? problems
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On 03 Feb, 2005, at 19:53, eric@lucii.org wrote:
On Thu, Feb 03, 2005 at 05:26:51PM -0700, high_desert wrote:
On the home LAN we have:
cable modem <---> Linky router/firewall <---> switch <---> boxes
Boxes are:
* OS X 10.2.x
* Debian (file and print server)
* Two W2K
At one point last week Internet connectivity slowed down, and POP and
SMTP
mail didn?t go at all. Obviously an ISP problem. A few calls yielded
nothing
helpful.
Events prior to problem, most likely coincidental:
* OSX hard drives were full, once drive space was cleared up, OS and
apps
were upgraded/patched to current
* A visiting teen played on-line games, first on the Mac, then a
Windows box
After bouncing everything on the phone with the ISP _some_ email now
works
on the Windows box (client configured to access six POP accounts) and
web
access is okay on the Windows boxes. On the Mac Google and a few
other sites
work great, but most of the rest of the ?net is inaccessible. On the
Mac I
can ping anything and resolve DNS to IPs for all websites I tried.
POP mail
does not come down on the Mac. Noticed no issues with the Debian box?
Swapped out Ethernet cables, changed ports - nothing. Flashed the
Linky to
the latest firmware, and when that did nothing, reset it to factory
defaults
and reconfigured.
Why on the Mac would Google work, but not other sites? Why would a POP
account work on a Windows box, but a POP account from the same ISP
not work
on the Mac?
Everything _had_ been working fine for two months with this setup and
ISP.
My next attempt will be to swap a different firewall in for the
Linky. After
that, as awkward as it sounds, I might resort to a format and reload
of the
Mac.
The cable modem is over two years old, the Linky might be five. The
Mac is
maybe six and was upgraded from OS 9.x
My wife, who uses the Mac, is having Internet withdrawal! She does
not like
using the Windows machines either?
My first cut at a fix would be to power cycle the cable modem and
router. It sounds like a lack of DNS service - which I experience
occasionally on my cable modem.
Second step is to turn off all the boxes and bring them back on one at
a time.
Does the first box brought back work as expected?
If not, turn it off and fire up the second box. ...
If it does, turn it off and fire up the second box.
In other words, this is likely to be an iterative process to access
which ever box is the culprit.
If one of the Windows boxes is infected, they can take down your
internal network.
I think this is what happens with most of the recent Windows virus
critters. I believe that they primarily muck up the DNS traffic.
T.T.F.N.
William H. Magill
# Beige G3 [Rev A motherboard - 300 MHz 768 Meg] OS X 10.2.8
# Flat-panel iMac (2.1) [800MHz - Super Drive - 768 Meg] OS X 10.3.7
# PWS433a [Alpha 21164 Rev 7.2 (EV56)- 64 Meg] Tru64 5.1a
# XP1000 [Alpha 21264-3 (EV6) - 256 meg] FreeBSD 5.3
# XP1000 [Alpha 21264-A (EV 6.7) - 384 meg] FreeBSD 5.3
magill@mcgillsociety.org
magill@acm.org
magill@mac.com
whmagill@gmail.com
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