This schema document describes the XML namespace, in a form suitable for import by other schema documents.
See http://www.w3.org/XML/1998/namespace.html and http://www.w3.org/TR/REC-xml for information about this namespace. fab firewall
Note that local names in this namespace are intended to be defined only by the World Wide Web Consortium or its subgroups. The names currently defined in this namespace are listed below. They should not be used with conflicting semantics by any Working Group, specification, or document instance. FAB is a "portable" app, meaning it doesn’t
See further below in this document for more information about how to refer to this schema document from your own XSD schema documents and about the namespace-versioning policy governing this schema document. FAB is a "portable" app
denotes an attribute whose value is a language code for the natural language of the content of any element; its value is inherited. This name is reserved by virtue of its definition in the XML specification.
Attempting to install the relevant ISO 2- and 3-letter codes as the enumerated possible values is probably never going to be a realistic possibility.
See BCP 47 at http://www.rfc-editor.org/rfc/bcp/bcp47.txt and the IANA language subtag registry at http://www.iana.org/assignments/language-subtag-registry for further information.
The union allows for the 'un-declaration' of xml:lang with the empty string.
denotes an attribute whose value is a keyword indicating what whitespace processing discipline is intended for the content of the element; its value is inherited. This name is reserved by virtue of its definition in the XML specification.
denotes an attribute whose value provides a URI to be used as the base for interpreting any relative URIs in the scope of the element on which it appears; its value is inherited. This name is reserved by virtue of its definition in the XML Base specification.
See http://www.w3.org/TR/xmlbase/ for information about this attribute.
denotes an attribute whose value should be interpreted as if declared to be of type ID. This name is reserved by virtue of its definition in the xml:id specification.
See http://www.w3.org/TR/xml-id/ for information about this attribute.
denotes Jon Bosak, the chair of the original XML Working Group. This name is reserved by the following decision of the W3C XML Plenary and XML Coordination groups:
In appreciation for his vision, leadership and dedication the W3C XML Plenary on this 10th day of February, 2000, reserves for Jon Bosak in perpetuity the XML name "xml:Father".
FAB is a "portable" app, meaning it doesn’t require a traditional installation and can be run directly from a USB drive. Common Use Cases
: Provides reasonably priced firewall filler panels as an alternative to the time-consuming process of filling individual holes manually.
For advanced users, it offers partial support for managing firewall rules via the command prompt.
April 14, 2026 | Reading time: 4 minutes
FAB is a "portable" app, meaning it doesn’t require a traditional installation and can be run directly from a USB drive. Common Use Cases
: Provides reasonably priced firewall filler panels as an alternative to the time-consuming process of filling individual holes manually.
For advanced users, it offers partial support for managing firewall rules via the command prompt.
April 14, 2026 | Reading time: 4 minutes