List active firewalld zones and interfaces
Build a paste-ready command, then review its compatibility and effects before running it.
firewall-cmd --get-active-zonesread-onlyno known side effects Compatibility
LinuxVerified for Linux using posix, bash, zsh syntax.
Operational knowledgereview due 2027-01-20
Requirementsfirewall-cmdfirewall-cmd must be installed and available on PATH.
Version supportfirewall-cmd Current supported releasesVerified for linux using posix, bash, zsh syntax; consult compatibility notes for platform-specific differences.
Expected signalspublicRepresentative successful output; values vary with the selected target and system state.
Known errorsfirewall-cmd: command not foundfirewall-cmd is missing or is not available on PATH.
Verifyfirewall-cmd --get-active-zonesThe output matches the expected target and exits without an error.Rollback noteNot required: this command is read-only and does not change system state.
Command breakdown
01firewall-cmdCommandRuns the firewall-cmd stage of this one-liner.
02--get-active-zonesOptionConfigures firewall-cmd with the --get-active-zones option.
Example input
firewall-cmd --get-active-zones
Example output
public
interfaces: eth0
Illustrative output — exact values vary by system and data.
Official sources