OpenSSH Heartbeat/Watchdog Patch adds a heartbeat (keepalive) function to ssh(1).
Version: 4.4p1OpenSSH 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.
License: BSD License
Operating System: Linux
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.
What's New in This Release:
· This version was adapted to OpenSSH 4.4p1.
· The documentation patch has been incorporated.