Hey John, Thanks! On 02/01/14 02:14, John R Pierce wrote: > Its the principle of least privilege. > > You don't need to be root to compile software, or to test software in a > local directory, you only need root privileges to install it to a system > directory. When you're developing, building, testing software, there's > a very good chance of something going wrong, so if you are running as a > non-root user, the potential damages are minimized. OK so as long as I can understand the meaning of compiling as non-root user is to be careful with your system. I would say that my conclusion is that if there is a very big system it is better to let the root user which understand the meaning of this system and to operate it. A simple testing machine which has error correction mechanism in it should be OK. I can see couple issues from my mind and vision but it seems like most software in CentOS will be safe to be compiled as root user.(I am testing a tiny simple piece of software) To corrupt a system in a level which it cannot be recognized that you have changed it you must be something like GOD or something in the same level. Thanks Again, Eliezer