firewall-cmd

CLI for firewalld to manage zones, services, and ports.

CentOS

Verified: 2026-02-09

Syntax

$firewall-cmd [OPTIONEN]

Optionen

--add-service=NAME Öffnet Dienst

--add-port=PORT/PROTO Öffnet Port

--permanent Persistente Änderung

--reload Lädt Regelwerk neu

Examples

$sudo firewall-cmd --get-active-zones

$sudo firewall-cmd --add-service=https --permanent

$sudo firewall-cmd --reload

Typical use cases

Standard usage

firewall-cmd --help

Note Default Firewall Interface on CentOS.

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