how to execute c code securely

Question

In this scenario the user will submit his/her C code to my server through a browser. The code will then be compiled and executed on my server and the output will be sent to the

Answer 1

Other problem to think to : what rights to allow the guest process: is he allowed to open a socket ? If so , what traffic do you allow him ?

In the case you open a socket, then the problem becomes even more complex, because he can deliver an attack over that socket...