Free users can software for linux

Squid Users Manager is a web-enabled and intuitive user interface written upon Ruby on Rails web development framework that manager Squid Proxy NCSA auth users across MD5 digest files.
The project is Open Source and distributed under the terms of the GPL licence.
Enhancements:
- Application Web 2.0 compliant
- New design with css and light layout.
- Ajax enabled app.
- More intuitive and elegant application.

TimeSaver is simple time management application. TimeSaver is designed to improve productivity by keeping track of the time spent on different activities.

TimeSaver is a simple application with intention to help users save their time spent on computer. It allows user to manage many tasks, each with his own name, time duration, type, description and status. The idea is that user can see progress of each task and prevent spending too much time on a single task.

TimeSaver uses simple user-friendly interface that allows adding task with a single click and users can also add fully specified tasks.
When time duration of a task is passed, user is informed with a message and a command can be executed.

All tasks can be saved to xml a file and opened from it. That file can be opened in web browser to see report of saved session.

User manager for PureFTPd allows administrators to easily create, change, or delete virtual PureFTPd users. It comes with a set of very good documentation to help with the setup of PureFTPd, Apache, PHP and MySQL.
This web application allows you as administrator to manage your ftp users in a web browser. With the user-friendly interface you can add, change, remove, lock or unlock ftp users.
Main features:
- Username and Password
- Choose the UNIX user and group rights for the ftp user.
- Choose a home directory with the embedded file browser.
- Select capture limits for there upload and download traffic.
- Restrict there number of files and total size of files with the quota option.
- Select a ratio for there upload and download sessions.
- Give an ip address restriction.
- Add personal notes about the ftp user.

TuxBox ISPWorks provides an ISP management system.

TuxBox ISPWorks is a full-blown Internet Service Provider Management System based on Open Source Software.

It allows you to manage DNS, mail, Web, FTP, and much more, and it can handle multiple servers.

Customers can log in to this system and manage their own domains, accounts, and mail aliases.

Users can log in and change their password and other things.

exPHPresso provides a compilation of fine coffees, their attributes, and variations.
exPHPresso uses PHP/MySQL for dynamic content consisting of recipes for coffees, both international, and domestic.
Coffees are listed by country, specialty, and classics.
Users can also input comments on where to find the best coffees, and their ratings, along with adding coffees to the database.
Enhancements:
- BETA RELEASE 0.0.2
- ADDED USER FUNCTIONS(ENHANCED)
- ADDED BETTER BROWSER COMPATIBILITY
- ADDED COUNTRIES BY COFFEE(DETAILS)
- ADDED DETAILED INPUT FOR USERS
- ADDED PRINTER FRIENDLY ENVIRONMENT

Netclasses is an asynchronous networking library that works with GNUstep and Mac OS X. Out of the box, netclasses gives a nice, asynchronous, and object-oriented interface for IRC, line- based, and raw TCP/IP connections.
Users can easily subclass the raw TCP/IP or line-based interfaces to create asynchronous interfaces for other sorts of connections.
Enhancements:
- Fixes a bug in LineObject where a single byte of non-allocated memory could be read when receiving a blank line.

Deadlock is a powerful, customizable, fully featured user management system which protects Web directories and documents using Apaches htaccess and htpasswd.
It features email verification and administrator approval capabilities that require the administrator to approve accounts before they become active. Deadlock supports both Basic and Digest authentication.
Main features:
- Administration Panel
- All settings and administrative controls are in the admin panel.
- User Panel
- Gives users the ability to change their password, email address, and any other account information
- Admin Approval
- When this option is enabled, the administrator must approve accounts before they are able to login to the protected area.
- User Email Verification
- Users are sent a confirmation email to the address specified and must click the link in the email to verify that the email provided is their email.
- Multiple Authentication Types
- The administrator has the option to choose between Basic and Digest authentication.
- Auto htpasswd generation
- Automatically generates the .htpasswd file containing the users when a new user is added.
- Auto htaccess generation
- Automatically generates the .htaccess file when the name of the protected area is changed.
- Templatable user panel pages
- The user panel pages are generated with a template engine, allowing you to customize the pages that the user sees by simply editing the html templates.
- Templatable System Emails
- Customize system emails by editing the templates. Deadlock does not yet include an editor in the admin panel.
- Web based configuration
- Configuration options can easily be modified through the administration panel.
- Integrated Email Functionality
- Specific users can be emailed straight through the admin panel, by simply selecting a link.
- Bulk Email all registered users
- Includes bulk email functionality allowing you to email everyone in the database.
- Search through user list
- The user list is searchable, allowing you to find a users account by just entering their last name, first name or username.
- Rollover Information
Enhancements:
- [bug fix] Fixed some problems that occur when gpc magic quotes is enabled
- [bug fix] Added some string escapes to mysql queries to prevent SQL injections
- [bug fix] If user edits their own account, notification email is not sent
- [security] Fixed bug that cuased problems when a user went to edit their account