CompTIA Linux+ (XK0-006) Practice Tests: 13 Practice Tests And 1170 Questions

CompTIA Linux+ (XK0-006) Practice Tests: 13 Practice Tests and 1170 Questions

XK0-006

1170

System Management | Boot process, device and storage management, LVM and RAID, network configuration and virtualization (23%) Services and User Management | Files and directories, local accounts, processes and jobs, software packages, systemd and containers (20%) Security | Authentication and logging, firewalls, OS and account hardening, cryptography and compliance (18%) Automation, Orchestration, and Scripting | Ansible, Puppet and OpenTofu, Kubernetes, shell scripting, Python, Git and responsible AI use (17%) Troubleshooting | Monitoring, hardware and storage issues, network issues, security issues and performance problems (22%)

Troubleshooting

Apache returns 403 Forbidden for files in /srv/web, even though the Unix permissions allow reading. ls -Z shows the files are labelled default_t. What fixes this persistently?

chmod -R 777 /srv/web so that every user and process, including httpd, has full access

semanage fcontext -a -t httpd_sys_content_t "/srv/web(/.*)?" then restorecon -Rv /srv/web

setenforce 0 and leave the server in permissive mode

chcon -R -t httpd_sys_content_t /srv/web only

SELinux blocks httpd from reading files labelled default_t. Defining the file-context rule with semanage and applying it with restorecon gives the files the web-content label, and the label survives future relabels. chmod 777 is insecure and does not change the label, permissive mode switches the protection off, and a chcon change is reverted by the next relabel.

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