Please explain 'Simultaneous connections'

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AIN
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Please explain 'Simultaneous connections'

Post by AIN » Tue Feb 19, 2019 1:49 pm

I'm looking to purchase web hosting. I have two questions. First being, I don't quite understand what 'Simultaneous connections' is. Can you please explain?

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Edge100x
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Re: Please explain 'Simultaneous connections'

Post by Edge100x » Tue Feb 19, 2019 10:35 pm

Simultaneous connections generally refers to TCP streams that are open at once. If you have two clients who load up a website at the same time, for instance, each client will typically open one or more TCP connections to the server in order to transfer resources, and after the content has been transferred, those TCP connections will be terminated.

We rarely see customers have problems due to the allowed number of connections being exceeded. It mostly happens during DoS attacks, and in that case, it can actually be a positive thing, since the flood of connections could otherwise cause even more damage.

AIN
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Re: Please explain 'Simultaneous connections'

Post by AIN » Wed Feb 20, 2019 5:56 pm

Edge100x wrote:
Tue Feb 19, 2019 10:35 pm
Simultaneous connections generally refers to TCP streams that are open at once. If you have two clients who load up a website at the same time, for instance, each client will typically open one or more TCP connections to the server in order to transfer resources, and after the content has been transferred, those TCP connections will be terminated.
So it's not, for example, 50 simultaneous users 'lingering' on the site at once per se where they would 'hold' these connections for as long as they stay on the site, but similar to a quick hello and goodbye scenario? While still maintaining a presence on the site allowing others to access the site after their meet and greet are over with?

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Re: Please explain 'Simultaneous connections'

Post by Vanderburg » Wed Feb 20, 2019 6:09 pm

Correct, the connection is only open as long as data is actually being transferred from your website to their browser. Once they have the data, the connection is closed, even if they continue viewing the page.

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Re: Please explain 'Simultaneous connections'

Post by Edge100x » Thu Feb 21, 2019 10:45 am

We also go over this a bit in the KB article: viewtopic.php?f=19&t=7184

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