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[linux] linuxroot login: A method to restrict the login of the root user under the Linux operating system

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Posted on 12/22/2014 10:53:55 PM | | |
/etc/securetty这个文件中保存了root用户可以登录终端名称或telnet登录

    1. If you want the root user to only log in from tty1 and tty2, modify the /etc/securetty file and keep only the following two lines

    [root@localhost ~]# cat /etc/securetty

    tty1

    tty2

    2. If you want to allow users to log in to telnet, add pts/1, pts/2, etc., and the modified file content is as follows

    [root@localhost ~]# cat /etc/securetty

    tty1

    tty2

    pts/1

    pts/2

    3. If you don't restrict the root user from logging in from any location, you can delete this file or change the name

    [root@localhost ~]# mv /etc/securetty /etc/securetty.bak




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