How to reset TCP connection on Linux?

[Grant Edwards]

How does one reset a TCP connection on Linux?  Note that I want to
reset the connection, not close it.

I need to emulate the rude behavior of a particular app (that's
sending the RST packet) in order to try to find a bug another app (the
one that's receiving the RST).

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Grant Edwards               grant.b.edwards        Yow! Where's th' DAFFY
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