System O & M skills (2)-motd and issue files

System O & M skills (II)-Modify the issue file when we do not want other users to know our system version and kernel information (logon only; when you want to modify the logon prompt, you can modify the motd file. [Plain] # change to another, prevent system information leakage [root @ serv01 etc] # vim/etc/issue [root @ serv01 etc] # cat/etc/issue Red Hat Enterprise Linux Server release 6.1 (Santiago) kernel \ r on an \ m [root @ serv01 etc] # cat/etc/issue Windows Server 2020 # modify welcome information, provides friendly prompts [root @ serv01 etc] # vim/etc/motd [root @ serv01 etc] # cat/etc/motd Welcome to zhink learn # the system will not be displayed upon next login version and kernel information, and displays the Welcome information [root @ larrywen mail] # ssh 192.168.1.11 root@192.168.1.11's password: Last login: Fri Sep 20 18:35:32 2013 Welcome to zhink learn