Manage SELinux Policy - Control Linux Security with semanage | Online Free DevTools by Hexmos

Control Linux security with semanage, a powerful command-line tool for managing SELinux policies. Modify booleans, file contexts, and ports. Free online tool, no registration required.

semanage

SELinux persistent policy management tool. Some subcommands such as boolean, fcontext, port, etc. have their own usage documentation. More information: https://manned.org/semanage.

  • Set or unset a SELinux boolean. Booleans allow the administrator to customize how policy rules affect confined process types (a.k.a domains):

sudo semanage boolean {{[-m|--modify]}} {{--on|--off}} {{haproxy_connect_any}}

  • Add a user-defined file context labeling rule. File contexts define what files confined domains are allowed to access:

sudo semanage fcontext {{[-a|--add]}} {{[-t|--type]}} {{samba_share_t}} '/mnt/share(/.*)?'

  • Add a user-defined port labeling rule. Port labels define what ports confined domains are allowed to listen on:

sudo semanage port {{[-a|--add]}} {{[-t|--type]}} {{ssh_port_t}} {{[-p|--proto]}} {{tcp}} {{22000}}

  • Set or unset permissive mode for a confined domain. Per-domain permissive mode allows more granular control compared to setenforce:

sudo semanage permissive {{--add|--delete}} {{httpd_t}}

  • Output local customizations in the default store:

sudo semanage export {{[-f|--output_file]}} {{path/to/file}}

  • Import a file generated by semanage export into local customizations (CAREFUL: may remove current customizations!):

sudo semanage import {{[-f|--input_file]}} {{path/to/file}}