March 25, 2012

internet explorer cannot download 704 from site

internet explorer cannot download 704 from site This problem will mostly occur when you will test your script in old version(s) of IE. This article is continuity of previous article Download file problem due to version incompatibility of IE & Adobe Reader. In fact when i posted the previous problem with corrections so that was […]

March 15, 2012

Download file problem due to version incompatibility of IE & Adobe Reader

Download file problem due to version incompatibility of IE & Adobe Reader I have reviewed & updated the code. In fact when we throw the file content in page, it has two options a) Will open PDF in the browser b) Will start download immediately Before correction in PHP script, you need to check the […]

March 14, 2012

PHP SMTP Email, Mail.php, Rackspace Cloud Hosting, Pear Mail, Authenticated Email Function

PHP SMTP Email, Mail.php, Rackspace Cloud Hosting, Pear Mail, Authenticated Email Function //I AM USING HTTP POT VARS BECAUSE WE ARE GETTING VARIABLES FROM HTML FILE, IF WE USE PHP FILE THEN WE CAN USE $_POST & $_GET $random_hash = md5(date(‘r’, time())); $what_to_replace = array(‘contact_’,’_’); $replace_with = ‘ ‘;//WE WANA REPLACE UNDERSCORES WITH SPACES $http_vars […]

March 10, 2012

Entrepreneurship in Pakistan

Disclaimer: This post is not related to any political or anti government activity. It was an assignment to do a critical analysis of current situation in the country regarding Entrepreneurship. This is posted in March 2012 and reflects the situation of that time. Author does not guarantee of any statistics provided in it. No claims […]

March 6, 2012

Utilities Available for ext4 file system

Utilities Available for ext4 file system e2fsck Used to repair an ext4 file system. This tool checks and repairs an ext4 file system more efficiently than ext3, thanks to updates in the ext4 disk structure. e2label Changes the label on an ext4 file system. This tool also works on ext2 and ext3 file systems. quota […]

The new features included in ext4 file system, which were not present in its previous versions

The new features included in ext4 file system, which were not present in its previous versions Extended storage limits and other performance improvements Can support volumes with sizes up to 1 exbibyte (EiB) and files with sizes up to 16 tebibytes (TiB) Traditional block mapping scheme replaced by extents used by ext2/3 filesystems. It is […]

Internals of ext4 File System

Internals of ext4 File System A specialized version of a B-tree is implemented: Htree indexes (a specialized version of a B-tree) are turned on by default in ext4. This feature is implemented in Linux kernel 2.6.23. Htree is also available in ext3 when the dir_index feature is enabled. It enables the ext4 to go beyond […]

How ext4 file system works

How ext4 file system works How it reduce fragmentation? It consists of delaying block allocation until the data is going to be written to the disk, unlike some other file systems, which may allocate the necessary blocks before that step. This improves performance and reduces fragmentation by improving block allocation decisions based on the actual […]