Technology

nTPV is the first ever GPL management and POS system for the hospitality enviroment developed and running on Linux.
Because it is based on distributed computing, it avoids single points of failure through a communications system using DCOP, XMLRPC and XML.
nTPV's modular design makes adding new program enhancements and features an easy task. The simplified application core guarantees robust and reliable performance.
Everything in nTPV is top-notch: From system communications secured by ipsec, to user fingerprint recognition, expert engineers have made great technology for the hospitality industry a reality.

nTPV dependencies

To install nTPV and its basic modules, some programs and libraries must already be installed on the system. Most of them come installed with GNU/Linux distributions. Others are programs or libraries developed for nTPV and available for downloading from this website.

External libraries

• libqt3c102-mt
• libqt3c102-mt-psql
• kdelibs4
• gdchart

External programs

• sudo
• nmap

Installation

• sudo
• nmap
• libqt3c102-mt
• libqt3c102-mt-psql
• kdelibs4
• libgdchart

Many libraries are part of the KDE project, so, if you install the KDE desktop enviroment, along with the libqt3c102-mt-psql package, you will have fulfilled nearly all the prerequisites for installing nTPV.

Installation from the source

All libraries and their headers above are necessary for nTPV to compile, that is the headers for QT , KDE and gdchart .

The compilation procedure has been tested on Debian, Ubuntu and Suse distributions. To install everything in one step, you must be the root user. Or you can go step by step, compiling as a user and installing as root.

At the end of the installation process a new users group called "ntpv" will be created. Add any user that will launch the nTPV application to this new group. The next step is to uncompress, install and configure a basic database placed in docs/caja_basica.sql.bz2 inside the sources directory. The instructions to install the database are described in the next section.

• Some compilation headers are missing. Make sure they are installed.
• Linking state fails finding libraries. Make sure all needed libraries are installed.
• Enviroment variables like QTDIR are needed to locate programs like "uic" and "moc".
• If you compiled using the -j gcc option, try again without it.

Database installation

1. Install PostgreSQL 8.2
   
2. Modify the access permisions.

If you do not know what permissions configuration is right for you, follow this example. Edit the file /etc/postgresql/8.2/main/pg_hba.conf, and add this line:

host    caja         ntpv        127.0.0.1         255.255.255.255   trust

3. Edit /etc/postgresql/postgres.conf and make sure the date format is European. Make sure that the locale database format Unicode(UTF-8)
The file must have a line that reads:

 datestyle = 'ISO,European'
 

4. Start (or restart) the database server and create the user nTPV will use to access the database:
Execute the next commands as root:

#su postgresql
$createuser ntpv

and answer "yes" to the questions about making ntpv a database admin user (allow it to create databases and more users).

5. Download the basic database and install it
• Download the database
• Uncompress it executing:

#gunzip caja_basica.sql.gz

• Install the database executing the following commands as a database admin user:

#su postgresql
$createdb caja
$psql -f caja_basica.sql caja

6. Configure nTPV to access the database
Edit the file /etc/ntpv/bar_database.xml and configure the database server hostname, database name, database user and database user password nTPV will use to access the database. This file is in xml format, please fill it with this information if it is not already filled

localhost between hostname labels
caja between database labels
ntpv between user labels

The basic database is really basic, without combinations of products. The nTPV package contains more than 700 product logos to help anyone to extend the basic database through nTPV Backoffice with more single and combined products. Napsis also creates on demand databases to customize nTPV for any hospitality business.

Changelog

version 1.2rc1