06-15-2010
whats your OS? and version??
I did a script just like this a few years back.
my design was to ping three high profile sites that had good uptime. (google, yahoo and cnn.com)
as long as two of the pings worked then we called the internet good.
if the internet was "bad" and two or more ping failed, then it called a script that did a telnet to the ADSL modem and issueing a reboot command.
then re-testing internet 2 minutes later.
this whole script was then in cron for every 15 minutes.
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LEARN ABOUT DEBIAN
wedged
WEDGED(8) System Manager's Manual WEDGED(8)
NAME
wedged - HylaFAX modem wedged script
SYNOPSIS
/var/spool/hylafax/bin/wedged devid device
DESCRIPTION
bin/wedged is the command script invoked by the facsimile server when a modem is deemed to be in an irreparable state and requires operator
intervention. This decision is based on the setting of the MaxSetupAttempts configuration parameter described in hylafax-config(5). The
default wedged script sends electronic mail to the FaxMaster alias. The interval at which emails are sent can be configured in the
etc/FaxDispatch file by setting the WEDGED_EMAIL_INTERVAL variable to the desired number of minutes (emails will be sent no more than every
WEDGED_EMAIL_INTERVAL minutes, until the wedged condition persists). If the variable WEDGED_DISABLE_FAXGETTY is set in etc/FaxDispatch
then the script will attempt to disable any faxgetty processes spawned by the init(8) process for the problematic modem. In addition the
faxq(8) process automatically disables use of the modem for servicing outbound jobs.
The devid argument is the identifier derived from the name of the modem's device file by substituting ``_'' characters for ``/'' charac-
ters; e.g. term_10 for /dev/term/10. The device argument is the name of the character special device associated with the modem.
If there exists an executable file /var/spool/hylafax/etc/resetmodem then that file will be executed upon execution of the wedged script in
an effort to recover the modem.
FILES
/usr/lib/sendmail for delivering mail
SEE ALSO
faxq(8), hylafax-config(5)
October 3, 1995 WEDGED(8)