[PATCH]: Heartbeat/Watchdog Patch

[Hideaki Goto]

Dear Developers,

I've released a patch against openssh-2.5.2p2.
The patch adds heartbeat (keepalive) function to ssh(1),
and watchdog timeout function to sshd(8). The watchdog
timeout is intended to terminate user's processes
as soon as possible after the link has been lost.

  http://www.ecip.tohoku.ac.jp/~hgot/sources/openssh-watchdog.html

The combination of the heartbeat and the watchdog timeout
is very useful for detecting link down over unreliable
connections, especially Wireless Networks.
We are using this patch in our wireless gateway.

I'm looking for other ssh clients which are capable of
sending heartbeats to ssh server. PuTTY was the only one
I could find. Please let me know if you have any info.
--------
Hideaki Goto