Pavnay

Firebug is a Firefox plugin for the website development.

Maybe hard to use at the beginning, it is really useful for CSS and Javascript design.
It can change the HTML page structure and its style without reloading the page, which is really convenient when we manage dynamic content...

Amoung the Firebug functionalities others than debug CSS, it provides statistics on different resources loading (images, scripts, etc...), HTTP headers sent and receive, browser cache usage, etc...

So, Firebug is THE plugin for web develoment for all designers and network administrators...

HTTP Top is a perl script which can to analyse in real time log files from a httpd Apache server.
With this script, it's of course possible to scroll the URLs called but also provides statistics about most viewed ressources, follows an IP address browsing and many other things.

Because these stats are precalculated, be careful because information are not purged during sthe scipt execution. So, the script must be stop then relaunch to get new datas...

Belong the most usefull softwares for MySQL there is MySQL Administrator. This software permits to see connected users, current requests and their state and execution time, the server variables, statistics on databases schemes, etc...

The trouble with this software is it's exclusively graphical and so inefficient on a platform where the server doesn't have graphical user unterface.
The solution is mytop.

mytop has all convenients provided by  MySQL Administrator but in console mode.
Belong all advantages taken from its elder, the best one is that it's in real time with automatic refresh (in MySQL Administrator, we have to hit a button...). Another one is that it provides the filter feature by active threads, users, hosts, etc...

This tool is really a must to have for MySQL real time monitoring...

RESTClient is a Firefox plugin for REST webservices development.

REST webservices development can be hard when we have to test HTTP verbs which can't be produced by browsers (remember that classical browsers use GET et POST verbs while HTTP defines also HEAD, OPTIONS, PUT and DELETE).

This plugin allows to use these other verbs but also to add specific headers (to produce XML or JSON for example) and giving wanted parameters.

For each executed request, the plugin gives return code, received headers, response time and of course the response body...