On Fri, Feb 13, 2004 at 02:01:04PM +0000, Coume - Lubox.com wrote:
> >
> > Sure, write a script that checks for connection, and restarts whatever
> > you want it to.
>
> Could you explain a bit more? Because I do not know how to do what
> you told me... :(
This is the guts of a script I have called "is_up". I call this from
other scripts to test my connection. This script just tests local
networking, and not necessarily connectivity with my ISP (that is
another script, more complex to ping local gateway and nameserver).
#!/bin/bash
IFACE=eth0
if ! ifconfig | grep $IFACE >/dev/null 2>&1 ||\
! ifconfig $IFACE | grep UP >/dev/null 2>&1; then
#if the interface is down, then the connection surely is too!
echo "Interface is down"
exit 1
fi
echo "Interface is rockin"
exit 0
# end of script
Another script might look like .... (untested!!!)
#!/bin/sh
services="licq named postfix blah"
if ! is_up >/dev/null; then
# whatever means of restarting networking
restart_interface
fi
if is_up >/dev/null; then
for i in $services; do
service $i restart
done
exit 0
else
echo "You have failed me miserably!"
exit 1
fi
# end
########################
The easiest thing is to run this stuff from cron every so often. You could
also run it within a script ...
#!/bin/sh
while sleep 30; do
# this is second script above
test_connect.sh
done
# will run forever
# end
# that is all
--
Hal Burgiss
