What is SELinux and Enforcing permissive mode and access data on client linux machine #linuxtips

SELinux stands for Security Enhanced Linux, which is an access control system that is built into the Linux kernel.
What is SELinux and why it is used?
What is SELinux and why disable it?
Is SELinux a firewall?
Should I enable SELinux?
Is it safe to set SELinux to permissive?
What is permissive mode in SELinux?
How do you set SELinux permissive to enforcing?
What are the 3 modes of SELinux?
@udemy @edurekaIN @redhat @linux3111 @LinuxfoundationOrg @UbuntuOS

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