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Date:      Fri, 20 Apr 2001 11:54:22 -0700 (PDT)
From:      Linh Pham <lplist@closedsrc.org>
To:        <bob@inu.net>
Cc:        <advocacy@freebsd.org>
Subject:   Re: top uptime!
Message-ID:  <Pine.BSF.4.33.0104201151490.51666-100000@q.closedsrc.org>
In-Reply-To: <3AE07CBF.13F6A56D@buckhorn.net>

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On 2001-04-20, Bob Martin scribbled:

# I don't know that I really trust these uptimes all that much, except in
# a general way. Also note the disclaimer "For performance reasons, we
# limit this monitoring process to the most frequently requested sites."
# could have more than a little to do with which OS's makes the list.

I wouldn't trust them a bit... Slashdot and several other discussion
boards have had nice discussions about some of the uptimes. I think they
do it on pings and if anything about the server changes for some reason.
Definitely doesn't work very well (invalid uptimes like: longer uptimes,
etc.) if the domain is hosted behind a load balancer, proxying firewall,
et al.

A better way to measure uptime is to run an script on a machine that
gets the output of `uptime' and sends that with an ID of the server to a
central DB.

-- 
Linh Pham
[lplist@closedsrc.org]

// 404b - Brain not found


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