The authentication for the e-auction hall (the supplier) is made by the user name and password (chosen by the participant) and ten-digit number generated key (the accidental combination of numbers and letters). All logins sended by the client on the server are hashed by the algorithm MD5. The authentication for the administration (the administrator – a person who prepares the process) is realized by the password and user name. The e-auction sw (both the administration and the hall) is possible to secure by SSL certificate with the cipher algorithm RSA 1024 bits.
In the case of buying the server licence there is recommended to place the server with the e-auction sw beyond the firewall in the demilitarized zone together with the other servers.

The system has been tried for the server with OS LINUX sw and web server Apache programmed in PHP language. After the long-time period of selling and service of PROe.biz sw system there was made no reclamation dealing with non-stability of the product. The limits related to the access of the users on the server may be caused by deficient power of user server only.

PHP is the most wide-spread, flexible and reliable programming tool providing dynamic and interactive web applications. It is due to both, the fact that it is an open source and universal usage in Linux and Windows platform, high power and uncomplicated syntax. PHP may be easy combined with XML language, connected with MySQL databases, integrated with LDAP protocol and worked with graphic dynamically within it.

MySQL is the most popular open source database in the world. Daily it is used by hundreds millions people, and it owns more than five millions active installations. Due to its high reliability, speed, complexity and easiness, it is used by such giants as Google, Cisco or NASA.

It is provided by the own analytic, marketing and programming team. PROe.biz software is user-customed and function-customed to the most demanding conditions. Already more than four years it provides the services for the purchase specialists dealing with the online negotiation processes. The software is regularly upgraded with the reference to very dynamic development of the e-business technologies and according to experience and remarks of the users and administrators.