In linux.dev.kernel, article <4jtvl6$79o@miriam.fuller.edu>,
clameter@miriam.fuller.edu (Christoph Lameter) writes:
> : >=20
> : > ssh has its own packet handling and bypasses TCP.
> : No
> Yes. SSH uses TCP socket number 20 to establish the connection but th=
en
> switches to something they call the "binary protocol" to do the
> actual transmissions in a secure way.
>=20
What? ssh uses port 22 (20 is FTP Data). It does NOT do anything but
read and write (binary, after the greeting message) data on that port.
Specifically, it does NOT "bypass TCP". That would mean opening a raw
socket. No way. ssh works on and with systems which don't even _have_
them.
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