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Re: [LUG] Problems with APT...

 

On Sat, 14 May 2005 17:29:16 +0100
Neil Williams wrote:

On Saturday 14 May 2005 4:58 pm, Grant Sewell wrote:
I can guarantee that there is nothing on my side of the WAN connection that
is playing-up, and when I have taken the lappy into College, I also get the
same problems from time-to-time with their ADSL line.

That's going to be a busy connection though, isn't it?

Sorry, forgot to mention.  This isn't a busy line, maybe 25 concurrent connections 
at most... upto 15 of which are in my classroom!  I wouldn't dream of using the 
College's main WAN connection - they have some hairy "Novell Border Manager" proxy 
setup which I still haven't figured out how to use with a Linux box successfully.  
Now, this ADSL line is pretty much unused most of the time.

My setup has not 
changed at all in recent months yet each system has recurrently failed to
retrieve package lists or individual deb files when upgrading.  Obviously I
cannot say whether my ISP has changed their setup or not.

My setup hasn't changed in years and I've never had two consecutive apt 
failures, using the same mirrors as you. There's no point going round in 
circles, your problems are not reproducible so the likelihood is that the 
problem is not on the Debian servers / mirrors but somewhere between your 
hard disc and the Debian mirror.

I was just wondering if others were experiencing similar problems since I thought it 
was a bit of a small probability that 2 x86 Sid machines, 1 x86 Testing and 1 PPC 
Stable machines would all fall foul of similar connection issues... especially when 
1 of the Sid machines (the Laptop) presented with the same problems at two different 
locations using different ADSL connections.

In the days of dial-up it was trivial to identify ISP problems because 
everyone had so many different accounts. With broadband, it's almost 
impossible to pin down problems because users are extremely unlikely to have 
two simultaneous accounts with different broadband ISP's.

/me considers the prospect of having two broadband ISPs and dismisses it immediately 
:D


Unfortunately I tend to be in bed, asleep, when my ISP's systems are
quietest and so I generally turn off the computers (none of them are
Internet visible servers, so I have no need to 24/7 uptime... with the
exception of my IPCop box, which isn't Debianised anyway)... I'm not sure
it would be worth bothering leaving my machines on overnight purely so that
they can update/upgrade on their own.

What times are you trying to run it now? Evenings are always the worst - maybe 
you'll get decent results running it during the working day - before the 
schoolkids get home.

Usually sometime betweeb 6:30pm and 11:30pm, although occasionally before noon too.

Alternatively, change your ISP - I can run apt whenever I need to and I don't 
get problems with timing.

I have been toying with the idea, but I'm quite happy with mine as they are.  
Besides, cost, the uncappedness of the connection and lack of 12month contract are 
pretty important issues for me.

What about changing your apt config to use FTP instead of HTTP? Maybe there's 
some cache or proxy messing up the results at the ISP?

I tend to use ftp.uk.debian.org, but I have tried ftp.fr.debian.org too.  I have 
tried to use the "netselect-apt" utility, but it routinely fails complaining about 
not receiving traceroutes... not really surprising when you're behind two layers of 
PNAT.  Can you suggest a good alternative mirror?  I'm happy to try any.

Grant.
-- 
Artificial intelligence is no match for nuratal stidutipy.

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