I setup the http accept filter with apache and I was having
a hard time
understanding this, maybe you guys could help out.
I've tested this among various version of freebsd, and with
various
apache configs, and it appears to behave the same across the
board.
So why is it that it "appears" that the TCP
connections never terminate,
just stay in a state of ESTABLISHED, and why doesn't this
queue ever
flush itself, is it normal, if it is, what happens exactly
when the
queue fills up to maxqlen. From the netstat output below,
you can see
that the incqlen is maxed out. I've done quite a bit of
searching
regarding this queue but haven't found any real solid
information which
describes what happens when it fills up, and at the same
time this is
going on, I have 517 established connections to port 80.
]# netstat -an|grep ".80"|grep ESTAB|wc -l
519
----
]# netstat -Lan
Current listen queue sizes (qlen/incqlen/maxqlen)
Proto Listen Local Address
tcp4 0/0/5 *.8080
tcp4 0/510/511 *.80
tcp4 0/0/10 *.587
tcp4 0/0/10 *.25
tcp4 0/0/128 *.22
tcp4 0/0/100 *.3306
tcp4 0/0/9 *.21
tcp4 0/0/128 127.0.0.1.953
tcp4 0/0/3 127.0.0.1.53
-Scott Oertel
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