> More concerning is the risk of exhausting server socket resources when probe-based connects don't hang up quickly if they don't want to use a connections. TC

> More concerning is the risk of exhausting server socket resources when probe-based connects don't hang up quickly if they don't want to use a connections. TCP connection cookies solved this problem in 90-s! They fell out of use because dedicating a couple MB of RAM to track a few hundred thousand connections is not a big deal anymore.