nixCraft

zafar466 · #1 (**permalink**) 06-02-2007, 03:12 PM

Hello,,
I need script which prompt me when net is dc on my server.
regards

nixcraft · #2 (**permalink**) 06-02-2007, 06:07 PM

What is dc?

How do you connect to Internet?

zafar466 · #3 (**permalink**) 06-02-2007, 09:48 PM

Dc means disconnected.
im using DSL connection

nixcraft · #4 (**permalink**) 06-02-2007, 11:54 PM

You can ping to remote site and if ping failed you can reconnect. For example:

Code:

#!/bin/bash
# add ip / hostname separated by while space 

HOSTS="yourwebsite.com"
# no ping request
COUNT=1

# email report when 
for myHost in $HOSTS
do
  count=$(ping -c $COUNT $myHost | grep 'received' | awk -F',' '{ print $2 }' | awk '{ print $1 }')
  if [ $count -eq 0 ]; then
    # 100% failed 
    # Call script or command below to reconnect 
    # add your command below
  fi
done

Add your command before fi that reconnects DSL

Ali_ix · #5 (**permalink**) 13-07-2007, 12:37 PM

Hi,
This is part of script i use:

Code:

#!/bin/bash
#set -x

dnsbroken=`ping -c1nqW5 -s8 www.yahoo.ca 2>&1 | grep -e "unknown" -e "denied" -e "permited"`

if [ -n "$dnsbroken" ]
then

# reconnect the connection
    poff -a
    pon dsl-provider
    sleep 3

fi

# get current ip on ppp0
    x=`/sbin/ifconfig ppp0`
    y=${x#*inet addr:}
    y=${y%% *}

# log current ip
    echo $y > /home/ali/scripts/adsl_ip

exit 0

This is my first quick and dirty script for my pppoe dsl connection

You can run this every 3 - 5 minutes via cron (as root).
You can report the date, time and new ip address of machine as you like.

change the hostname (Yahoo! Canada), log path (/home/ali/scripts/adsl_ip) and your connection name (dsl-provider), then run.

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Shell script to reconnect when PPP / DSL interface goes down

Shell script to reconnect when PPP / DSL interface goes down

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