Thank you for report, but you reported 4 stuffs in 1 bug report.
About security issue, it does no matter. Port and "port+1" are both opened, so if a cracker wants to crack you he can do it in port. The problem isn't to know a opened port, a 5 years old child can know this...
About all webserver use tcp port number 80 :)
To crack someone you need to use a vulnerability in the server program.
Thank you for report, but you reported 4 stuffs in 1 bug report.
About security issue, it does no matter. Port and "port+1" are both opened, so if a cracker wants to crack you he can do it in port. The problem isn't to know a opened port, a 5 years old child can know this...
About all webserver use tcp port number 80 :)
To crack someone you need to use a vulnerability in the server program.