Ravi Sir's Cyber Security Cards › Revision Cards
Patching, Users, Permissions and Services
Patching, Users, Permissions and Services Four everyday hardening jobs: patch software, review users, fix permissions, turn off unneeded services. sudo yum update / apt upgrade fixes known bugs. Stop and disable services you don’t need. Keep SELinux in enforcing mode. Turning SELinux off to “fix” a
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What this card says
What it is
Four everyday hardening jobs: patch software, review users, fix permissions, turn off unneeded services.
How
sudo yum update / apt upgrade fixes known bugs.
Stop and disable services you don’t need. Keep SELinux in enforcing mode.
Common mistake
Turning SELinux off to “fix” a permission error.
Fix the file label instead; don’t throw away a defence layer.
Learn more in the lesson: 32.4 Patching, Users, Permissions and Services