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Top Forums Programming checking the heartbeat of the online user Post 29774 by shushilmore on Friday 11th of October 2002 06:57:04 AM
Old 10-11-2002
Question checking the heartbeat of the online user

hello,
Can anyone please tell me how can i check the availability of the online user in a client-server environtment.
This is for a program where lakhs of client are connected to the server and the server has to check the availability of the every client in every minute.
So polling every client is not a good option.
Can anyone help me for the solution.
 
Test Your Knowledge in Computers #957
Difficulty: Medium
Metamorphic code is code that when run outputs a logically equivalent version of its own code under some interpretation.
True or False?

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MOSH(1) 						      General Commands Manual							   MOSH(1)

NAME
mosh-client - client-side helper for mosh SYNOPSIS
MOSH_KEY=KEY mosh-client IP PORT mosh-client -c DESCRIPTION
mosh-client is a helper program for the mosh(1) remote terminal application. mosh itself is a setup script that establishes an SSH connection, runs the server-side helper mosh-server, and collects the server's port number and session key. mosh then executes mosh-client with the server's IP address, port, and session key. mosh-client runs for the lifetime of the connection. The 22-byte base64 session key given by mosh-server is supplied in the MOSH_KEY environment variable. This represents a 128-bit AES key that protects the integrity and confidentiality of the session. For constructing new setup wrappers for remote execution facilities other than SSH, it may be necessary to invoke mosh-client directly. With the -c option, mosh-client instead prints the number of colors of the terminal given by the TERM environment variable. SEE ALSO
mosh(1), mosh-server(1). Project home page: http://mosh.mit.edu AUTHOR
mosh was written by Keith Winstein <mosh-devel@mit.edu>. BUGS
Please report bugs to mosh-devel@mit.edu. Users may also subscribe to the mosh-users@mit.edu mailing list, at http://mailman.mit.edu/mailman/listinfo/mosh-users February 2012 MOSH(1)

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