[ale] A new web server

[Terry Bailey]

The random errors are random within a particular subcollection of 
items.  I went to a computer store today in Douglasville and the same 
thing happened on one of their XP computers as happens on the XP 
machine that I am running.   So, when I got home, I whipped out a 
laptop and hooked up to the wireless on my home network.  It is an XP 
machine and works perfectly time after time and I flush the browser 
cache after each trial.

So the server is performing well at my house for the Fedora 9 box and 
the XP laptop, just not my XP tower nor the XP tower in Douglasville.

I think that it may be a flaky router because I am in a boutique data 
center and the ownership has just changed hands.

Since I am running CentOS 5.2 64 bit on the new server and since my 
take is that this is just Red Hat Enterpirse Linux, it seems that the 
OS ought to be OK.  I downloaded via BitTorrent and burned the DVD 
myself.  Maybe there is a problem there.

Memtest is not on the server, but I will try to find it and I am not 
sure how to do a tcpdump.



At 10:05 PM 1/19/2009, you wrote:
>On Mon, Jan 19, 2009 at 4:50 PM, Terry Bailey <terry at bitlinx.com> wrote:
>
> > BTW, this problem is intermittent.
> >
>Download the 2.6.28 kernel and compile specifically for your machine.
>There are numerous "gotcha's" in the 2.6.27 kernels in F10 at the
>moment. I also suspect a flaky router at an ISP. Run tcpdump on the
>web port on both ends of the connection (server and client). If the
>transfer byte count differs, call and send the logs to the ISP network
>engineering team for both the server and client ends.
>
>Also test the same page multiple times and flush the browser cache
>after each attempt. If the missing parts are inconsistent, that
>further suggests router problems.
>
>Last test: run memtest on the server. I can't count the number of
>problems that go away when the system passes all memtest trials. Ram
>just a tad flaky is OK for clients but a nightmare to debug on
>servers. The only thing memtest can't do is run the hard drives full
>steam during the ram tests. This will also stress test the power
>supply than can also cause intermittent ram issues.
>
>--
>--
>James P. Kinney III
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