Network monitor script Post: 302855731

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Special Forums Windows & DOS: Issues & Discussions Network monitor script Post 302855731 by DGPickett on Friday 20th of September 2013 03:57:20 PM

09-20-2013

Registered User

There are several ways to do this.

you can set ping to the interval and process the output, perhaps for each hour so you can switch logs.
you can call ping every interval for one ping and process the output. You can regenerate the log file name on each pass.
You can send part of your script to the far end using ssh, and send a small message every interval. To switch logs, you might limit the runs to an hour. For a full duplex check it might just be 'ssh there cat', so the messages go up and back.
You can go to C/C++/Java/PERL/Python so the log switch is easier to detect and implement. You might even make it a free standing pipe fitting for just that. Scripts are harder to make blockage sensitive, compared to poll(). You could just write a ping output watcher. It might be a good time to use aio (asynchronous I O), so you can check progress without blocking any thread/process.

DGPickett

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LEARN ABOUT LINUX

monitor

monitor(1)							  monitor command							monitor(1)

NAME

       monitor - receive logging information from LPD

SYNOPSIS

       monitor [ -u ] [ -t ] [ port ]

DESCRIPTION

       The  monitor  program is a template for a printer status monitoring program.  It will open the specified TCP and/or UDP port, and then wait
       for accounting or other information to be sent.	It prints this information on it standard output.

OPTIONS

       -u   wait for connections on the UDP port.

       -t   wait for connections on the TCP port.

       port Use the specified port number.

EXIT STATUS

       The following exit values are returned:

       zero (0)       Successful completion.

       non-zero (!=0) An error occurred.

SEE ALSO

       lpd.conf(5), lpc(8), lpd(8), checkpc(8), lpr(1), lpq(1), lprm(1), printcap(5), lpd.conf(5), pr(1), lprng_certs(1), lprng_index_certs(1).

AUTHOR

       Patrick Powell <papowell@lprng.com>.

HISTORY

       LPRng is a enhanced printer spooler system with functionality similar to the Berkeley LPR software.  The LPRng developer  mailing  list	is
       lprng-devel@lists.sourceforge.net; subscribe by visiting https://lists.sourceforge.net/lists/listinfo/lprng-devel or sending mail to lprng-
       request@lists.sourceforge.net with the word subscribe in the body.
       The software is available via http://lprng.sourceforge.net

LPRng								    2006-12-09								monitor(1)