NetBilling is built of the following parts:

• MySQL database
• net-acct traffic collector
  • nacctd - traffic collecting daemon
  • nacctd.out - nacctd log with traffic data
• scripts to form the Web-interface (from cgi-bin)
  • admin/*.pl - system administrator's interface
  • client.pl - client's personal page
• gettraf.pl - net-acct log analyser and traffic accounter; put calculated traffic date into MySQL
• getfee.pl - monthly fee collector; should be daily sheduled with cron
• setaccess.pl - access restorator for setting appropriate access when server reboots
• act.sh, deact.sh, ipta - packet filter control subsystem
• reportday.pl and reportmonth.pl - report senders, sheduled in cron