connection tracking and keepalive

connection tracking and keepalive

[SB CH]

Hello,

Does connection tracking has a relation with the keepalive config at 
httpd.conf?
I know that when one configured keepalive into off at http server, then 3 
way handshake generated as the hits number.
But keepalive is on, 3 way handshake generated a bit little.

I would like that connection tracking has a relation with keepalive or not?
and how much memory size is required to execute connection tracking ?


Thanks in advance.



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Re: connection tracking and keepalive

[Filip Sneppe]

Hi,

On Wed, 2003-01-15 at 12:37, SB CH wrote:
> Hello,
> 
> Does connection tracking has a relation with the keepalive config at 
> httpd.conf?

No, not really.

> 
> I would like that connection tracking has a relation with keepalive or not?

Connection tracking is more related to TCP states. Obviously with
keepalives off, every request requires a new TCP connection, so
indirectly they are related through the TCP states.

> and how much memory size is required to execute connection tracking ?

384 bytes per connection (may be slightly different depending on
your kernelversion - see /proc/slabinfo, ip_conntrack entry) +
a couple of bytes per hash (I think 8 bytes) * hashsize (determined
when ip_conntrack is loaded)

Regards,
Filip