How to change hostname in Linux

1. Edit file /etc/sysconfig/network using your favourite editor. For vi enter vi /etc/sysconfig/network
2. Look for HOSTNAME=xxxxxx
3. Change the xxxx to the name you wish to set for your computer. (ex: HOSTNAME=hula.com)
4. Save the file and restart the xinetd service. (ex: type service xinetd restart in your shell)

Reference: http://www.techiecorner.com/99/how-to-change-hostname-in-linux/

Recharge your prepaid mobile phone online

Service providers:
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Vodafone: http://www.vodafone.in/online_prepaid_recharge/online_recharge_mobile.aspx
BSNL: http://portal.bsnl.in/rc/aspxfiles/login.aspx


Banks:
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HDFC Bank: http://www.hdfcbank.com/personal/payments/prepaid_refill/pre_refill.htm
ICICI: http://www.icicibank.com/Personal-Banking/onlineservice/online-services/PrepaidMobileRecharge/prepaid-mobile-recharge.html

Third party (I have personally not used any of them, but looks good)):
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http://www.rechargeitnow.com
http://www.onestoprecharge.com
http://rechargemobilephones.com/india/online-recharge-mobile/

Hope this information is helpful.