Apache codeigniter allowoverride

Solve "Cannot modify header information - headers already sent by *.php"

http://digitalpbk.com/php/warning-cannot-modify-header-information-headers-already-sent as On and restart Apache server. ; Output buffering allows you to send header lines (including cookies) even ; after you send body content, at the price of slowing PHP's output layer a ; bit. You can enable output buffering during runtime by calling the output ; buffering functions. You can also enable output buffering for all files by ; setting this directive to On. If you wish to limit the size of the buffer ; to a certain size - you can use a maximum number of bytes instead of 'On', ...

About "HOSTS" File

http://digitalpbk.blogspot.com/2006/11/about-hosts-file.html .25.63.10 x.acme.com # x client host127.0.0.1 localhostThe Lines followed by a # are comments and explains how to use the HOSTS file. 127.0.0.1 is the IP address that is used to loopback to your computer itself. So if you are running an apache or IIS server or anyother server software, you can access it by the url http://localhost or http://127.0.0.1 What now ? Suppose you want to block some sites for example say you want to block "www.sicksite.com". All you have to do is add ...