• Linux CentOS7/RHEL7关闭ctrl+alt+delete功能键


             Linux默认允许任何人按下Ctrl+Alt+Del重启系统。但是在生产环境中,应该停用按下Ctrl-Alt-Del 重启系统的功能。前面的centos版本都是在/etc/inittab中配置,而centos7/RHEL7查看/etc/inittab文件,“Ctrl-Alt-Delete is handled by /usr/lib/systemd/system/ctrl-alt-del.target”指出了这个功能键在“/usr/lib/systemd/system/ctrl-alt-del.target”设置。  

    [root@ansible-node1 ~]# cat /etc/inittab
    # inittab is no longer used when using systemd.
    #
    # ADDING CONFIGURATION HERE WILL HAVE NO EFFECT ON YOUR SYSTEM.
    #
    # Ctrl-Alt-Delete is handled by /usr/lib/systemd/system/ctrl-alt-del.target
    #
    # systemd uses 'targets' instead of runlevels. By default, there are two main targets:
    #
    # multi-user.target: analogous to runlevel 3
    # graphical.target: analogous to runlevel 5
    #
    # To view current default target, run:
    # systemctl get-default
    #
    # To set a default target, run:
    # systemctl set-default TARGET.target
    #

      # ll /usr/lib/systemd/system/ctrl-alt-del.target
        lrwxrwxrwx. 1 root root 13 May 26 2017 /usr/lib/systemd/system/ctrl-alt-del.target -> reboot.target

     

        直接vim编辑这个文件,按以往设置关闭这个功能的方式去操作:全部注释掉/usr/lib/systemd/system/ctrl-alt-del.target文件中的内容即可。但是由于此文件是/usr/lib/systemd/system/reboot.target的软链接文件,这样的话会使reboot命令失效,因此要想解决这个问题只需要删除文件:/usr/lib/systemd/system/ctrl-alt-del.target即可,同时执行#init q重新加载配置文件使配置生效,此时Ctrl+Alt+Del失效,同时reboot也能用,恢复ctrl+ALt+Del只需将reboot.target文件软链接成ctrl-alt-del.target即可。即

      # ln -s /usr/lib/systemd/system/reboot.target /usr/lib/systemd/system/ctrl-alt-del.target
    
    
  • 相关阅读:
    Daily Scrum – 1/15
    Daily Scrum – 1/12
    Daily Scrum – 1/11
    Daily Scrum – 1/7
    Daily Scrum – 1/6
    Daily Scrum – 1/5
    Daily Scrum – 1/4
    1/13 update
    stand up meeting 1--11
    stand up meeting 1-6
  • 原文地址:https://www.cnblogs.com/lwf-blog/p/7452444.html
Copyright © 2020-2023  润新知