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Some useful general variables in Exim

A complete list of the available variables is given in the Exim documentation. This shortened list contains the ones that are most likely to be useful in personal filter files: $body_linecount: The number of lines in the body of the message… [ + ]

VIM: file editor command line on Linux

VIM is a free text editor, open-source in Unix-like/Linux command line. The main purpose of an editor is to create, add, or modify text for a file. Open file Syntax vi [tùy_chọn] [filename] Adding, Changing, and Deleting Text Note: You… [ + ]

ls command list files and directories in Linux

ls command is a basic Linux shell command used to list files and directories. ls command comes with so many arguments and features like: sort files and directories by Date, by Size, able to check hidden files and directories, permissions,… [ + ]

All Member Variables of WP_Post

As of WordPress Version 3.5.1. The WP_Post class is used to contain post objects stored by the database and is returned by functions such as get_post, WP_Query, query_posts. Member Variable Variable Type Notes ID int The ID of the post… [ + ]

What is DNSSEC and Why is it important?

Domain Name System Security Extensions, or DNSSEC, is an important security protocol that prevents internet users from being redirected to fraudulent websites and unintended addresses. Simple enough but understanding how it works calls for… [ + ]

What is DNS and how is DNS works

The Domain Name System (DNS) helps users find their way around the Internet. Every computer on the Internet has a unique address called its "IP address" (Internet Protocol address). Because IP addresses (which are strings of numbers) are… [ + ]

JavaScript: childNodes Property

The childNodes property returns a collection of a node's child nodes, as a NodeList object. The nodes in the collection are sorted as they appear in the source code and can be accessed by index numbers. The index starts at 0. Note:… [ + ]