Re: [SLUG] Need a lesson in routing [WAS: memory]

2009-02-21 Thread Chris Zhang
Perhaps you can use a socks proxy through a SSH tunnel and ask the  
Linux box to do DNS for you. This means the only thing that is  
affecting your speed behind the firewall is the actual connection  
between the host(running FF) and the firewall.



e.g.


on the Mac/Windows, ssh -D 1234 u...@linux_box


and configure FF to use 'localhost' as the SOCKS proxy, port is 1234.


Change 'network.proxy.socks_remote_dns' in FF to true.


I wonder if this would result in any significant speed boost.


Likewise, make a tunnel to your IMAP server, e.g. ssh -L 993:localhost: 
993 u...@linux_box and configure TB to use 'localhost' as the IMAP  
server.



If neither is speeding things up, it seems that might you have a slow  
connection between your Linux and the host you are running FF.



Chris


On 21/02/2009, at 4:41 PM, Kyle wrote:


... OK!!!

That is indeed what it does Michael, when it doesn't timeout. I had  
previously read up on F'Fox and turned on the various turbocharging  
options, but hadn't thought of ipv6.


So I changed network.dns.disableIPv6 to true on the hosts behind  
the switch and Wow! That's a bit more like what I might expect.


ipv6 has always been a bit of a black box I've tried to avoid as  
long as possible. Guess I need to start reading up on it.  Or  
disabling it!


Allow me here to thank each and every one of you that have put up  
with my ignorance to assist in debugging this issue.


I'm not convinced that's all there is to it just yet. For instance,  
the Linux box is still an order of magnitude faster to load a page,  
network.dns.disableIPv6 is true by default in T'Bird on the hosts  
which still timeout on initial connection and all hosts are only  
using the linux box itself as name server.


But where we are now will go a long way to dispersing aggravation in  
the local browsing community.


Thanks again.

ipv6 . mumble, groan, must read . pain in th. mumble,  
groan, ipv6



Kind Regards

Kyle



Michael Chesterton wrote:
Does it sit there for 11 seconds, then load all of a sudden, or  
does it start loading right from

the start?
I'm wondering if firefox is doing IPv6 lookups and failing. If you  
want to test, disable IPv6 in firefox (about:config) or use the  
same nameservers as the linux router

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[SLUG] Re: Mythbuntu box shutting down at random

2009-02-21 Thread elliott-brennan
Wished I could Simon, but the machine won't even
boot past the BIOS post now...

I'm considering replacing the mobo and just having
done with it.

You know some times you don't mind spending
several days trying to work everything out and
some times you're only willing to spend a day???

This is one of those times :))

Thanks for the advice though. I'm curious about
the option of the box sending an e-mail...I've
heard about this before but not read anything
about how to do it.

Regards,

Patrick


Rev Simon Rumble wrote:
 Sat, 21 Feb 2009 15:59:56 +1100
 
 Install the lm-sensors and sensord package.  Then (as root) run 
 sensors-detect.  It'll test for available temperature sensors on your 
 machine and set up the appropriate lines in /etc/modules.conf to load 
 the right modules (first time you'll need to modprobe them yourself).
 
 Then type sensors to see all the output.  For example, here's part of my 
 output:
 adm1023-i2c-2-18
 Adapter: SMBus I801 adapter at dcd0
 Board Temp:  +37.0°C  (low  = -128.0°C, high = +127.0°C)  
 CPU Temp:+41.0°C  (low  = -128.0°C, high = +105.0°C)  
 
 Fiddle around with /etc/sensors3.conf to set maximum temperatures, and 
 actions when the maximums are exceeded (like, get it to send you an 
 email?).
 
 
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Re: [SLUG] Need a lesson in routing [WAS: memory]

2009-02-21 Thread James Polley
On Sat, Feb 21, 2009 at 2:22 PM, Martin Visser martinvisse...@gmail.com wrote:
 Kyle, a few things.

 Firstly you talk about 15Kbps. In my mind this reads as 15 thousand bits
 per second. This is slower than dialup speeds. (A little b is always bits
 *not* bytes, which is B in communication speek). Even if you meant 15 000
 bytes per second (which equate to 150 000 is slow). So I am not sure what
 you really mean here.


I discussed this with Kyle off-list, and we realised that he's missing
some zeros - his dsl modem actually reports 15,000Kbps

The rest of Martin's points stand :)
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Re: [SLUG] Re: Mythbuntu box shutting down at random

2009-02-21 Thread Ben Donohue

Hi Patrick,
pull out everything that is not needed to start the box up. you only 
need a video card. check that your IDE cables are the right way. only 
connect one IDE device like the HDD.
pull out network cards and anything else in there. pull out all memory 
except one chip. also try changing the keyboard to another (i once had a 
faulty KB that caused the HDD to report failure - go figure!)
reset the BIOS to factory defaults. if it boots then add one device back 
at a time. reseating everything in there also. make sure you keep 
yourself grounded eg. by leaving the power supply plugged in and off and 
having one hand touching the case all the time.

Ben.


elliott-brennan wrote:

Wished I could Simon, but the machine won't even
boot past the BIOS post now...

I'm considering replacing the mobo and just having
done with it.

You know some times you don't mind spending
several days trying to work everything out and
some times you're only willing to spend a day???

This is one of those times :))

Thanks for the advice though. I'm curious about
the option of the box sending an e-mail...I've
heard about this before but not read anything
about how to do it.

Regards,

Patrick


Rev Simon Rumble wrote:
  

Sat, 21 Feb 2009 15:59:56 +1100

Install the lm-sensors and sensord package.  Then (as root) run 
sensors-detect.  It'll test for available temperature sensors on your 
machine and set up the appropriate lines in /etc/modules.conf to load 
the right modules (first time you'll need to modprobe them yourself).


Then type sensors to see all the output.  For example, here's part of my 
output:

adm1023-i2c-2-18
Adapter: SMBus I801 adapter at dcd0
Board Temp:  +37.0°C  (low  = -128.0°C, high = +127.0°C)  
CPU Temp:+41.0°C  (low  = -128.0°C, high = +105.0°C)  

Fiddle around with /etc/sensors3.conf to set maximum temperatures, and 
actions when the maximums are exceeded (like, get it to send you an 
email?).





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Re: [SLUG] Mythbuntu box shutting down at random

2009-02-21 Thread Heracles

Hi Elliot,
I may be way off here, but I had the same problem a while ago. It turned 
out that the power supply had a fault which started as random and then 
eventually the machine would not boot; whenever something caused a spike 
like when a HDD firing up it couldn't cope. It was hard to diagnose.

I fixed the problem by getting a better quality power supply.

Heracles


elliott-brennan wrote:

Hi all,

I have Mythbuntu running on

a 3Ghz P4
1.5G RAM,
500G HDD,
two PVR-150 video cards
and a 128mb nVidia card.

On the odd occasion the machine decides to reboot,
for no particular reason. Tonight, for instance,
my wife was watching the ABC and the machine just
borked and rebooted. She wasn't 'doing' anything
and the machine was doing nothing but showing the
TV...no additional work.

It's done this irregularly (eg. not every day and
not at the same time) and I can't work out a pattern.

Last week I had serious problems getting it to
stay alive for more than 10 minutes. I finally
replaced the BIOS battery and it was fine.

Can anyone suggest something I should look at?

Thanks in advance.

Regards,

Patrick


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