As the name implies, Global Configuration is the area of the Joomla administrative interface where a user with Super Administrator attributes is able to make changes that globally affect the behaviour of the web site and also alter some default settings for the presentation of, and access to site content.
All the parameters under the Site, System and Server tabs in the Global Configuration are stored as values in the file configuration.php, which you will find in the root folder of Joomla installation. This file is set up automatically by the software installation process and thus many of the parameters appearing in the Global Configuration screens are best left as their initial settings. Should Joomla be unable to update configuration.php a message such as "Could not save data. Error: Could not write to the configuration file." will be displayed, rather than the usual "Configuration successfully saved.". There are a number of ways of overcoming this problem, please refer to Cannot save Global Configuration changes for further information.
The parameters controlled by a third tab, Permissions, (present only with Joomla v1.6.x and later) differ from those controlled via the other tabs in that they are stored within the web site's database.
To make your Joomla! website unavailable to visitors, replacing it with a simple message, do this:
or System → Global Configuration in 
. or click the Yes button in .A vulnerable extension is one that has been found to contain (or contribute to) a security vulnerability.
Vulnerable extensions are not necessarily poorly-coded. As the Web evolves, technical requirements and commonly accepted coding practices change. Active projects release new versions of their extensions as requirements change. For this reason, it is important to:
In order to add your pages to its database, a search engine (such as Google) will send out so-called crawlers, spiders or bots to harvest the text on your site. These bots cannot harvest things that are created by Javascript, or 'see' images (though they do check alt tags) and the don't play well with Flash files if at all.
While all these things may make the site look better, they do little to nothing in terms of search engine optimisation (SEO) without adding descriptive information about those resources which are visible to a search engine (but not necessarily visible to your site visitors).
It is important that your website can be found by people who are looking for its content, therefore you must serve content to search engine 'bots' in a way that they can interpret, analyse and identify how relevant it is to the search query.
For this to happen, you need to bring to the attention of the 'bots' important information about the page using various techniques detailed below - almost like a 'signpost' telling the 'bot' what the page contains. It will then compare what you tell it the page is about, with what it finds by itself, and run various algorithms to check if the page is in fact relevant. It also runs other checks to make sure that you are not trying to cheat the system using 'black hat' or 'grey hat' tactics to make your page rank higher.
It is also possible to add contextual information to your website which helps the 'bot' to understand the context of the information it is indexing, ultimately resulting in more appropriate search results pages when people are searching for topics.
Amazing development work,
communication and professionalism
Jim, US
This is the fourth time I have engaged Igor to work on some legacy Pascal/Delphi software. It's always a positive experience, so I don't even bother looking at anyone else. Highly recommend!
Name, Location
