OpenSSH Heartbeat/Watchdog Patch adds a heartbeat (keepalive) function to ssh(1). If the output channel has been silent for more than a specified time, a null message (SSH_MSG_IGNORE) is sent to the server as a heartbeat. The heartbeat is useful for keeping connections over IP masquerade/NAT boxes, firewalls, etc. This patch also adds a watchdog timeout function to sshd(8). The combination of the heartbeat and the watchdog timeout is very useful for detecting a link which is down over unreliable connections such as a wireless network.
Release Notes: This version was adapted to OpenSSH 4.4p1. The documentation patch has been incorporated.
Release Notes: This version was adapted for OpenSSH 4.0p1.
Release Notes: Adapted to OpenSSH 3.9p1.
Release Notes: This patch is updated to apply cleanly against OpenSSH 3.7.1p1 and p2.
No changes have been submitted for this release.