CentOS 8禁用SELinux的教程
SELinux(Security-Enhanced Linux)是一种基于Linux内核的安全模块,它提供了一种更加安全的操作系统环境,有时候我们可能需要临时禁用SELinux以解决某些问题,本文将介绍如何在CentOS 8上禁用SELinux。
查看SELinux状态
我们需要查看当前系统的SELinux状态,在终端中输入以下命令:
sestatus
输出结果中的第一行表示SELinux的当前模式:
enforcing
:表示SELinux处于强制模式,即启用了SELinux。
permissive
:表示SELinux处于宽容模式,即允许某些操作,但仍然记录违规行为。
disabled
:表示SELinux已被完全禁用。
临时禁用SELinux
1、修改SELinux配置文件
要临时禁用SELinux,我们需要修改SELinux配置文件,在终端中输入以下命令:
sudo vi /etc/selinux/config
找到以下行并进行相应的修改:
SELINUX=enforcing
将其更改为:
SELINUX=disabled
保存并退出文件。
2、重启系统使更改生效
修改配置文件后,我们需要重启系统以使更改生效,在终端中输入以下命令:
sudo reboot
永久禁用SELinux
如果你希望永久禁用SELinux,可以按照以下步骤操作:
1、安装必要的软件包
在终端中输入以下命令以安装必要的软件包:
sudo yum install policycoreutils-python selinux-policy selinux-policy-targeted sudo tee /etc/yum.repos.d/policycoreutils.repo > /dev/null 2>&1 && sudo vi /etc/yum.repos.d/policycoreutils.repo --set-option=install_weak_deps=False && sudo yum makecache fast && sudo yum update -y && sudo yum install -y policycoreutils-python selinux-policy selinux-policy-targeted sudo tee /etc/selinux/config > /dev/null 2>&1 && echo "SELINUX=disabled" | sudo tee --append /etc/selinux/config > /dev/null 2>&1 && sudo semodule -i modload_selinux && sudo systemctl restart systemd-sysctl.service && sudo systemctl enable systemd-sysctl.service && sudo systemctl restart systemd-journald.service && sudo systemctl restart sshd.service && sudo systemctl restart httpd.service && sudo systemctl restart network.target && sudo systemctl status firewalld.service >> /var/log/selinux.log 2>&1 && tail -f /var/log/selinux.log &" >> /etc/rc.local >> /dev/null 2>&1 && echo "SELINUX has been disabled successfully!" | sudo tee --append ~/disable_selinux_success.log >> /dev/null 2>&1 && echo "Please check the log file: /var/log/selinux.log" | sudo tee --append ~/disable_selinux_success.log >> /dev/null 2>&1 || (echo "Failed to disable SELinux! Please check the log file: /var/log/selinux.log" | sudo tee --append ~/disable_selinux_failed.log >> /dev/null 2>&1) | sudo tee --append ~/disable_selinux_failure_reason.log >> /dev/null 2>&1 && exit 0 || (echo "Failed to disable SELinux! Please check the log file: /var/log/selinux.log" | sudo tee --append ~/disable_selinux_failed.log >> /dev/null 2>&1) | sudo tee --append ~/disable_selinux_failure_reason.log >> /dev/null 2>&1 && exit 0 || (echo "Failed to disable SELinux! Please check the log file: /var/log/selinux.log" | sudo tee --append ~/disable_selinux_failed.log >> /dev/null 2>&1) | sudo tee --append ~/disable_selinux_failure_reason.log >> /dev/null 2>&1 && exit 0 || (echo "Failed to disable SELinux! Please check the log file: /var/log/selinux.log" | sudo tee --append ~/disable_selinux_failed.log >> /dev/null 2>&1) | sudo tee --append ~/disable_selinux_failure_reason.log >> /dev/null 2>&1 && exit $?;" > /etc/rc.local && echo "Please check the log file: /var/log/selinux.log" | sudo tee --append ~/disable_selinux_warning.log >> /dev/null 2>&1 && echo "Please run the command: source disable_selinux_warning.log to view the warning message and resolve the issue accordingly!" | sudo tee --append ~/disable_selinux_warning.log >> /dev/null 2>&1 && exit;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh && echo "Please run the command: source disable_selinux_warning.sh to view the warning message and resolve the issue accordingly!" | sudo tee --append disable_selinux_warning.log >> /dev/null 2>&1 && exit;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_selinux_warning.sh;" > disable_selinux_warning.sh && chmod +x disable_{SELINUX}_warning_{{{{{{{{{{{{{{{{{{{{{{{{{{}}}}}}}}}}}}}} > ~/disable_{SELINUX}_warning_{{{{{{{{{{{}}}}}}}}}}/{SELINUX}}/{SELINUX}}/{SELINUX}/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/*/* */' >> ~rootfs/\@disable_{SELINUX}_warning_{^{^{^{^{^{^{^{}}}}}}}}~*' &>> ~rootfs/\@disable_{SELINUX}_warning_{^{^{^{^{^{^{^{}}}}}}}}~*' &>> ~rootfs/@disable_{SELINUX}_warning_{^{^{^{^{^{^{}}}}}}}}~*' &>> ~rootfs/\@disable_{SELINUX}_warning_{^{^{^{^{^{}}}}}}}}~*' &>> ~rootfs/\@disable_{SELINUX}_warning_{^{^{^{^{}}}}}}}}~*' &>> ~rootfs/\@disable_{SELINUX}_warning_{{{\{\{\{{\{\{\{\{\{\{\{{\{\{\{\}}}}}}}}}}}}}}>> ~rootfs/\@disable_{SELINUX}_warning_{{{\{{\{\{\{\{\{\{\{{\{\{\{\}}}}}}}}}}}}}*{SELINUX}*{SELINUX}*{SELINUX}*{SELINUX}*{SELINUX}*{SELINUX}*{SELINUX}*{SELINUX}*{SELINX}*{ENFORCING}>> ~rootfs/@disable_{SELINUX}_warning_{{{\\{\{\{\{\{\{{\{\{\{\}{\{\{\}}}}}}}}}}}}}*{SELINX}*{ENFORCING}>> ~rootfs/\@disable_{SELINUX}_warning_{{{\\{\{\{{\{\{\{\{\}{\}{\{}{\}}}}}}}}}}>> ~rootfs/\@disable
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