CodePudding user response:
Since uploaded to the server, that can in the server database is user information table and the activation identifier field, judgment, active users to activate is changed to activeCodePudding user response:
1, every device must have a logo, used to distinguish equipment2, you can use the computer's MAC binding
3, GUID or all kinds of motherboard, CPU and other hardware information. Of course if the user change the hardware will also determine failed
4, of course, more bad of the method is to save a password file in physical memory, each time by reading files and device ID to the server to identify the background
These are relatively simple
CodePudding user response:
To judge activation? Every time the activation of account activation + 1