I haven't been in this area for a long time, the technology is still behind, although I have been not a master, but I am really interested in the network security, I can now there is no exercise environment, technology is difficult to improve, it seems still Steering programming.
It was roughly swept on that day, I found that it is Linux or UNIX system. I feel that my level is not enough. I have never spill over the Linux system, so I can only look at these red characters, I can't add my own name, but unfortunately!
(Illustration delete)
