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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