Test environment: Linux system (CentOS 7.6), Pagoda Panel, Nginx, PHP 5.6, MySQL 5.6, pseudo-static configuration refer to the building instructions, and has enabled SSL certificate. This is the program of Dafu 2 open, the front and back end has been completely reconstructed, the user experience is far more than the original version, and has been expanded in terms of functionality, including the addition of the new fast three and red and black code play and so on. The program has been repaired, including the functions of combined purchase and lottery collection. The SQL injection backdoor problem that comes with Dafu has been thoroughly cleaned up. As long as the firewall is properly configured, simple penetration attacks are basically impossible to break through. And the program has been converted to Linux version, which greatly improves the security of the system.
