Create a New User Grant Root Privileges and Disabl SSH Root Login on CentOS
Recently, we encountered the problem that Alibaba Cloud ECS server was attacked by DDoS, indicating that our server security needs to be improved. From the perspective of ssh login, you can set sub-users for the linux system and prohibit root login, which can improve certain security.
How to Check the Linux System Architecture Type
Identifying the bit architecture of a Linux operating system is a common task.