Sarath Lakshman

Posts Tagged ‘internet’


Posted on January 5, 2010 - by

Asianet dataline internet autoconnect script

In my hostel, we use asianet dataline internet connection. The connection is established through a webpage authentication and it needs to keep that webpage always open in the browser to get the stable connection. Once we login and releave that page, after five minutes it will require a re-login. Its a real hurdle to keep a page open in the browser for internet authentication.

I just analyzed the http requests from that page and automated using the curl utility.

Here is the script it feel, it would be useful for many.

#!/bin/bash

customer=CNXXXX
password=XXXXXX

if [ -n "`ifconfig | grep -A 1  wlan0 | grep "inet addr"`" ];
then
 
curl https://mwcp-ekm-04.adlkerala.com:8001 --data "auth_user=$customer&auth_pass=$password&accept=Login" &> /dev/null


echo "Connected :)"

while true
do
    sleep 300
    curl https://mwcp-ekm-04.adlkerala.com:8001 --data "alive=y&un=$customer" &> /dev/null ;

done

else

echo "Wifi not connected";

fi

Copy down the above script in a text file and rename to internet.sh

slynux@slynux-laptop:~$ chmod a+x  internet.sh
slynux@slynux-laptop:~$ ./internet.sh
Connected :)

This script has an initial check for ethernet interface. Here it is given Wifi interface, wlan0. If you use a LAN for connection change wlan0 to eth0 and the message as well :)


Posted on July 23, 2008 - by

Hacking BSNL EVDO Internet.

# /sbin/modprobe usbserial vendor=0x05c6 product=0x6000 ;

and respective connection model device will be /dev/ttyUSB0

I felt like its a kinda frustration to configure it manually by GNU/Linux users and I’m afraid of users going back to M$ Windows and use that default application. This leveraged me to write a device installer script.

Download this script [DOWNLOAD] and go for a one command install.

Usage:
As root run,
# sh bsnl_evdo.sh

Finally it works fine.
I am getting a download speed around 9 – 15 kbps. But, truly speaking the connection speed flows between bytes and kilobytes Anyway I didn’t get enough time to play around with it to optimise speeds.