The Payment Card Industry (PCI) data security standards are a set of best practices and requirements established to protect sensitive data such as payment card information. Following these standards is mandatory for merchants dealing with payment cards, but any responsible organization can benefit by using them to enhance information security.
The Vim text editor provides such a vast set of features that no matter how much you know, you can still learn new and better techniques. If you're a programmer, here are some tips and tricks to help you do things such as compile your code from within Vim, or save your changes when you've edited a file but later realized that you should have opened it using sudo.
Conditional text in LibreOffice Writer refers to text that changes according to circumstances you set. Conditional text can both simplify the use of paragraph styles and offer a solution to one of the biggest challenges in technical documentation: how to single-source, or maintain, multiple copies of a document within the same file.
An important aspect of administering a CentOS server is to understand its package management system and its various online repositories. Together they ensure you are always running a secure and updated server.
Early in its development, OpenOffice.org made a policy of encouraging extensions to augment the funtionality of the office suite. Today OpenOffice.org has morphed into LibreOffice and Apache OpenOffice, but users can still enhance the software's basic functionality with add-ons. LibreOffice and Apache OpenOffice maintain separate sites for extensions, but the two suites have diverged so little that the majority of extensions continue to work with both.
LibreOffice Writer is a powerful tool, but some of its code was originally written in the 1990s and fails to meet the design standards of today. You would not, for instance, want to use its graphic bullets, or the contents of its clipart gallery, unless you were deliberately trying for a retro look. The most unavoidable example of obsolescence is Writer's default table of contents (TOC), which is not only outdated but fails miserably in its purpose of helping readings locate content in a document. Luckily, with a little customization, you can do far better.
When you update the packages on a badly outdated server, the challenge is to do the upgrades without breaking anything. When dealing with a CentOS installation that's two or three versions behind the current release, a direct upgrade simply isn't the safest option.
Joomla remains a favorite choice among open source content management systems (CMS). No matter what kind of Joomla website you run, here are some extension ideas that can help get your site ready for business.
If an attacker knows that your server is listening on a given port, potentially ready to allow entrance, he can target it for a security breach. An open port can be seen as a door to your system, and a password would be its key. But what would happen if the door were hidden, invisible, and you needed to use something special to make it visible again? A technique called port knocking keeps ports closed until users provide a secret knock sequence that only then allows them access to your site.
In its 22 years of existence, the Vim editor has become the center of an ecosystem of plugins. Whether you are coding or writing a text document, you can probably find a plugin that will make you more productive.