On a Linux Apache server, from time to time, there are messages saying TCP: Treason uncloaked!
.
There are previous questions on ServerFault explaining the fixes for this issue.
However does anyone know the meaning of this error message? Why would mis-matched TCP messages provoke such an unclear error message? Has this message got some history behind it?
It's part of a long tradition of attempts (and successes) at humor in Unix and Linux error messages. It simply means that a TCP window was shrunk unexpectedly.