Prints a short help text and exits.

Be more verbose while printing.

Do not print status messages.

Print the version string of firewalld. This option is not combinable with other options.

Check whether the firewalld daemon is active (i.e. running). Returns an exit code 0 if it is active, NOT_RUNNING otherwise (see the section called “Exit Codes”). This will also print the state to STDOUT.

Reload firewall rules and keep state information. Current permanent configuration will become new runtime configuration, i.e. all runtime only changes done until reload are lost with reload if they have not been also in permanent configuration.

With the -c | --complete option, reload firewall completely, even netfilter kernel modules. This will most likely terminate active connections, because state information is lost. This option should only be used in case of severe firewall problems. For example if there are state information problems that no connection can be established with correct firewall rules.

Save active runtime configuration and overwrite permanent configuration with it.

The way this is supposed to work is that when configuring firewalld you do runtime changes only and once you're happy with the configuration and you tested that it works the way you want, you save the configuration to disk.

Print predefined zones as a space separated list.

With the -a | --active option, only zones are listed, that are active. That means that the zones have interface or source bindings.

With the -p | --permanent option, zones in the permanent environment are listed.

Print predefined services as a space separated list.

With the -p | --permanent option, services in the permanent environment are listed.

Print predefined ipsets as a space separated list.

With the -p | --permanent option, ipsets in the permanent environment are listed.

Print predefined icmptypes as a space separated list.

With the -p | --permanent option, icmptypes in the permanent environment are listed.

Print information about the zone zone. The output format is:

zone
  interfaces: interface1 ..
  sources: source1 ..
  services: service1 ..
  ports: port1 ..
  protocols: protocol1 ..
  forward-ports:
        forward-port1
        ..
  source-ports: source-port1 ..
  icmp-blocks: icmp-type1 ..
  rich rules:
        rich-rule1
        ..
              

With the -p | --permanent option, zones in the permanent environment are listed.

Print information about the zones. The output format is:

zone
  interfaces: interface1 ..
  sources: source1 ..
  services: service1 ..
  ports: port1 ..
  protocols: protocol1 ..
  forward-ports:
        forward-port1
        ..
  source-ports: source-port1 ..
  icmp-blocks: icmp-type1 ..
  rich rules:
        rich-rule1
        ..
              

With the -a | --active option, only zones are listed, that are active. That means that the zones have interface or source bindings.

With the -p | --permanent option, zones in the permanent environment are listed.

Print information about the service service. The output format is:

service
  ports: port1 ..
  protocols: protocol1 ..
  source-ports: source-port1 ..
  modules: module1 ..
  destination: ipv1:address1 ..
              

With the -p | --permanent option, services in the permanent environment are listed.

Print information about the services. The output format is:

service
  ports: port1 ..
  protocols: protocol1 ..
  source-ports: source-port1 ..
  modules: module1 ..
  destination: ipv1:address1 ..
              

With the -p | --permanent option, services in the permanent environment are listed.

Print information about the ipset ipset. The output format is:

ipset
  type: type
  options: option1[=value1] ..
  entries: entry1 ..
              

With the -p | --permanent option, ipsets in the permanent environment are listed.

Print information about the ipsets. The output format is:

ipset
  type: type
  options: option1[=value1] ..
  entries: entry1 ..
              

With the -p | --permanent option, ipsets in the permanent environment are listed.

Print information about the icmptype icmptype. The output format is:

icmptype
  destination: ipv1 ..
              

With the -p | --permanent option, icmptypes in the permanent environment are listed.

Print information about the icmptypes. The output format is:

icmptype
  destination: ipv1 ..
              

With the -p | --permanent option, icmptypes in the permanent environment are listed.

Add an element or several elements of the same type to a zone with an optional timeout. If a timeout is supplied, the element will be active for the specified amount of time and will be removed automatically afterwards.

If zone is the empty string "", the default zone will be used.

For possible zone elements see further down.

With the -p or --permanent option, elements are added in the permanent environment.

The --timeout option is not combinable with the --permanent option.

Remove an element or several elements of the same type from the zone.

If zone is the empty string "", the default zone will be used.

For possible zone elements see further down.

With the -p or --permanent option, elements are added in the permanent environment.

Return whether the element or several elements of the same type are enabled in the zone.

If zone is the empty string "", the default zone will be used.

For possible zone elements see further down.

With the -p or --permanent option, elements are added in the permanent environment.

Return short or long description from zone.

If zone is the empty string "", the default zone will be used.

With the -p or --permanent option, elements are added in the permanent environment.

Set short or long description for a zone to text.

If zone is the empty string "", the default zone will be used.

With the -p or --permanent option, elements are added in the permanent environment.

Return list of elements added for zone.

If zone is the empty string "", the default zone will be used.

With the -p or --permanent option, elements are added in the permanent environment.

Load zone default settings or report NO_DEFAULTS error.

An interface name is a string up to 16 characters long, that may not contain ' ', '/', '!' and '*'.

If the interface is under control of NetworkManager, it is at first connected to change the zone for the connection that is using the interface for new or changed interface bindings. If the setting in NetworkManager fails, the zone binding is created or changed in firewalld and the limitations below apply. For interfaces that are not under control of NetworkManager, firewalld tries to change the ZONE setting in the ifcfg file, if the file exists.

As a end user you don't need to create or change zone bindings of interfaces in most cases, because NetworkManager (or legacy network service) adds interfaces into zones automatically (according to ZONE= option from ifcfg-interface file) if NM_CONTROLLED=no is not set. You should do it only if there's no /etc/sysconfig/network-scripts/ifcfg-interface file. If there is such file and you add interface to zone with this --add-interface option, make sure the zone is the same in both cases, otherwise the behaviour would be undefined. Please also have a look at the firewalld(1) man page in the Concepts section. For permanent association of interface with a zone, see also 'How to set or change a zone for a connection?' in firewalld.zones(5).

A source address or address range is either an IP address or a network IP address with a mask for IPv4 or IPv6 or a MAC address (no mask) or also an ipset. For IPv4, the mask can be a network mask or a plain number. For IPv6 the mask is a plain number. The use of host names is not supported.

A service is a firewalld provided or user created service. To get a list of the supported services, use firewallctl list services [ -p | --permanent ].

A port can either be a single port number or a port range portid-portid. The protocol can either be tcp or udp.

A protocol can be any protocol supported by the system. Please have a look at /etc/protocols for supported protocols.

A source port can either be a single port number or a port range portid-portid. The protocol can either be tcp or udp.

A rich language rule. For the rich language rule syntax, please have a look at firewalld.richlanguage(5).

IPv4 masquerading.

Masquerading is useful if the machine is a router and machines connected over an interface in another zone should be able to use the first connection.

An IPv4 forward port.

The port can either be a single port number portid or a port range portid-portid. The protocol can either be tcp or udp. The destination address is a simple IP address.

For IPv6 forward ports, please use the rich language.

An ICMP type block.

The icmptype is the one of the ICMP types firewalld supports. To get a listing of supported icmp types: firewallctl list icmptypes [ -p | --permanent ]

Invert ICMP type blocks. The ICMP types marked to be blocked are allowed and all others are blocked.

Add an element or several elements of the same type to a service.

For possible service elements see further down.

With the -p or --permanent option, elements are added in the permanent environment.

Remove an element or several elements of the same type from the service.

For possible service elements see further down.

With the -p or --permanent option, elements are added in the permanent environment.

Return whether the element or several elements of the same type are enabled in the service.

For possible service elements see further down.

With the -p or --permanent option, elements are added in the permanent environment.

Return short or long description from service.

With the -p or --permanent option, elements are added in the permanent environment.

Set short or long description for a service to text.

With the -p or --permanent option, elements are added in the permanent environment.

Return list of elements added for service.

With the -p or --permanent option, elements are added in the permanent environment.

Load service default settings or report NO_DEFAULTS error.

A port can either be a single port number or a port range portid-portid. The protocol can either be tcp or udp.

A protocol can be any protocol supported by the system. Please have a look at /etc/protocols for supported protocols.

A source port can either be a single port number or a port range portid-portid. The protocol can either be tcp or udp.

A netfilter helper module.

A destination address with optional mask for ipv. ipv is one of ipv4 or ipv6.

Add an entry or several entries to the ipset. Or add entries from one or more files to the ipset.

For possible ipset entries see further down.

With the -p or --permanent option, elements are added in the permanent environment.

Remove an entry or several entries the ipset. Or remove entries from one or more files from the ipset. Or remove all entries from the ipset.

For possible ipset entries see further down.

With the -p or --permanent option, elements are added in the permanent environment.

Return whether the entry or the several entries are part of the ipset. Or return whether the entries from one or more files are part of the ipset.

For possible ipset entries see further down.

With the -p or --permanent option, elements are added in the permanent environment.

Return short or long description from ipset.

With the -p or --permanent option, elements are added in the permanent environment.

Set short or long description for a ipset to text.

With the -p or --permanent option, elements are added in the permanent environment.

Return list of entries added for ipset.

With the -p or --permanent option, elements are added in the permanent environment.

Load ipset default settings or report NO_DEFAULTS error.

An entry can be a single ip address with an optional cidr netmask or an ip range. The cidr value must be between 1-32 for IPv4 and between 1-128 for IPv6.

The address can be an IPv4 address if the family is set to inet or not set or an IPv6 address if the family is set to inet6.

An entry can either be a single ip address with an optional cidr netmask or an ip range. The cidr value must be between 1-32 for IPv4 and between 1-128 for IPv6.

The address can be an IPv4 address if the family is set to inet or not set or an IPv6 address if the family is set to inet6.

An entry is a mac address.

Add the destination to the icmptype or remove the destination from the icmptype.

With the -p or --permanent option, elements are added in the permanent environment.

Return whether the destination is set in the icmptype.

With the -p or --permanent option, elements are added in the permanent environment.

Return short or long description from icmptype.

With the -p or --permanent option, elements are added in the permanent environment.

Set short or long description for a icmptype to text.

With the -p or --permanent option, elements are added in the permanent environment.

Return list of destinations added for icmptype.

With the -p or --permanent option, elements are added in the permanent environment.

Load icmptype default settings or report NO_DEFAULTS error.

Add a new permanent zone. Either empty with specified name or from an existing zone file with optional name override.

The zone will only be usable in the runtime environment after a reload.

Add a new permanent service. Either empty with specified name or from an existing service file with optional name override.

The service will only be usable in the runtime environment after a reload.

Add a new permanent ipset. Either empty with specified name, type and optional option or from an existing ipset file with optional name override.

For valid ipset options please have a look at firewalld.ipset(5).

The ipset will only be usable in the runtime environment after a reload.

Add a new permanent icmptype. Either empty with specified name or from an existing icmptype file with optional name override.

The icmptype will only be usable in the runtime environment after a reload.

Delete a permanent zone.

The zone will be part of the runtime environment until a reload.

Delete a permanent service.

The service will be part of the runtime environment until a reload.

Delete a permanent ipset.

The ipset will be part of the runtime environment until a reload.

Delete a permanent icmptype.

The icmptype will be part of the runtime environment until a reload.

Add a new chain with name chain to table table. Make sure there's no other chain with this name already.

There already exist basic chains to use with direct options, for example INPUT_direct chain (see iptables-save | grep direct output for all of them). These chains are jumped into before chains for zones, i.e. every rule put into INPUT_direct will be checked before rules in zones.

Return whether a chain with name chain exists in table table. Returns 0 if true, 1 otherwise. This option concerns only chains previously added with direct add chain.

Get all chains added to table table as a space separated list. This option concerns only chains previously added with direct add chain.

Get all chains added to all tables. This option concerns only chains previously added with direct add chain.

Add or remove a rule with the arguments args to chain chain in table table with priority priority.

The priority is used to order rules. Priority 0 means add rule on top of the chain, with a higher priority the rule will be added further down. Rules with the same priority are on the same level and the order of these rules is not fixed and may change. If you want to make sure that a rule will be added after another one, use a low priority for the first and a higher for the following.

Return whether a rule with priority and the arguments args exists in chain chain in table table. Returns 0 if true, 1 otherwise. This option concerns only rules previously added with direct add rule.

Get all rules added to all chains in all tables as a newline separated list of the priority and arguments. This option concerns only rules previously added with direct add rule.

Get all rules added to chain chain in table table as a newline separated list of the priority and arguments. This option concerns only rules previously added with direct add rule.

Add a passthrough rule with the arguments args for the ipv value.

Return whether a passthrough rule with the arguments args exists for the ipv value. Returns 0 if true, 1 otherwise.

Get all passthrough rules as a newline separated list of the ipv value and arguments.

Get passthrough rules for the ipv value as a newline separated list of the priority and arguments.

Pass a command through to the firewall. args can be all iptables, ip6tables and ebtables command line arguments. This command is untracked, which means that firewalld is not able to provide information about this command later on, also not a listing of the untracked passthoughs.

Add an element or several elements of the same type to the lockdown whitelist.

For possible lockdown whitelist elements see further down.

With the -p or --permanent option, elements are added in the permanent environment.

Return whether the element or several elements of the same type are enabled in the lockdown whitelist.

For possible lockdown whitelist elements see further down.

With the -p or --permanent option, elements are added in the permanent environment.

Return list of elements added for the lockdown whitelist.

With the -p or --permanent option, elements are added in the permanent environment.

The command string is a complete command line including path and also attributes.

If a command entry ends with an asterisk '*', then all command lines starting with the command will match. If the '*' is not there the absolute command inclusive arguments must match.

Commands for user root and others is not always the same, the used path depends on the use of the PATH environment variable.

The context is the security (SELinux) context of a running application or service.

To get the context of a running application use ps -e --context and search for the application that should be white-listed.

Warning: If the context of an application is unconfined, then this will open access for more than the desired application.

The user with the name string will be white-listed.

The user with the id userid will be white-listed.

Set a firewalld config option.

The possible config options are:

List firewalld config options like default-zone, lockdown, log-denied and panic flag.

Get a firewalld config option.

The possible config options are:

List firewalld settings like BRIDGE, CleanupOnExit, IPSet, IPSetTypes, IPv4, IPv6, IPv6_rpfilter, IndividualCalls and MinimalMark.

Get a firewalld setting.

The supported settings are: