still be sent in the other direction. This message does not consume
window space and may be sent even if no window space is available.
+NB. due to certain broken SSH implementations aborting upon receipt
+of this message (in contravention of RFC4254 section 5.4), this
+message is only sent to OpenSSH peers (identified by banner).
+Other SSH implementations may be whitelisted to receive this message
+upon request.
+
4. connection: disallow additional sessions extension
"no-more-sessions@openssh.com"
Note that this is not a general defence against compromised clients
(that is impossible), but it thwarts a simple attack.
+NB. due to certain broken SSH implementations aborting upon receipt
+of this message, the no-more-sessions request is only sent to OpenSSH
+servers (identified by banner). Other SSH implementations may be
+whitelisted to receive this message upon request.
+
5. connection: Tunnel forward extension "tun@openssh.com"
OpenSSH supports layer 2 and layer 3 tunnelling via the "tun@openssh.com"
Both the "statvfs@openssh.com" and "fstatvfs@openssh.com" extensions are
advertised in the SSH_FXP_VERSION hello with version "2".
-$OpenBSD: PROTOCOL,v 1.11 2008/07/05 05:16:01 djm Exp $
+$OpenBSD: PROTOCOL,v 1.12 2009/02/14 06:35:49 djm Exp $