In Linux, in order to avoid running out of sockets you can use
the following as root:
echo 1 > /proc/sys/net/ipv4/tcp_tw_recycle
I'm not sure how your Linux install is set, just wanted to mention that I once wrote a bot to monitor svn commits and it had this problem and netstat would uncover many TIME_WAIT still opened but unused connections.
Here are some docs that describe what tcp_tw_recycle does(Taken from ip-sysctl.txt):
tcp_tw_recycle - BOOLEAN
Enable fast recycling TIME-WAIT sockets. Default value is 0.
It should not be changed without advice/request of technical
experts.
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