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radiusd.conf(5) 		  FreeRADIUS configuration file 		  radiusd.conf(5)

NAME
       radiusd.conf - configuration file for the FreeRADIUS server

DESCRIPTION
       The radiusd.conf file resides in the radius database directory, by default /etc/raddb.  It
       defines the global configuration for the FreeRADIUS RADIUS server.

CONTENTS
       There are a large number of configuration parameters for the server.  Most are  documented
       in  the file itself as comments.  This page documents only the format of the file.  Please
       read the radiusd.conf file itself for more information.

       The configuration file parser is independent of the server configuration.  This means that
       you  can  put almost anything into the configuration file.  So long as it is properly for-
       matted, the server will start.

       When the server parses the configuration file, it looks only for those  configurations  it
       understands.   Extra  configuration  items are ignored.	This "feature" can be (ab)used in
       certain interesting ways.

FILE FORMAT
       The file format is line-based, like many other Unix configuration files.   Each	entry  in
       the file must be placed on a line by itself, although continuations are supported.

       The file consists of configuration items (variable = value pairs), sections, and comments.

       Variables
	      Variables can be set via:

		   name = value

	      Single and double-quoted strings are permitted:

		   string1 = "hello world"
		   string2 = 'hello mom'

       Sections
	      A  section begins with a section name, followed on the same line by an open bracket
	      '{'.  Section may contain other sections, comments, or variables.  Sections may  be
	      nested to any depth, limited only by available memory.  A section ends with a close
	      bracket '}', on a line by itself.

		   section {
			...
		   }

	      Sections can sometimes have a second name following the first one.  The  situations
	      where  this  is  legal depend on the context.  See the examples and comments in the
	      radiusd.conf file for more information.

		   section foo {
			...
		   }

       Comments
	      Any line beginning with a (#) is deemed to be a comment, and is ignored.	 Comments
	      can appear after a variable or section definitions.

		   # comment
		   foo = bar # set variable 'foo' to value 'bar'
		   section { # start of section
		   ...
		   }	     # end of section

       Continuations
	      Long  lines  can be broken up via continuations, using '\' as the last character of
	      the line.  For example, the following entry:

		   foo = "blah \
		   blah \
		   blah"

	      will set the value of the variable "foo" to "blah blah blah".  Any CR or LF is  not
	      turned into a space, but all other whitespace is preserved in the final value.

REFERENCES
       The  value  of  a variable can reference another variable.  These references are evaluated
       when the configuration file is loaded, which means that there is no run-time cost  associ-
       ated  with  them.   This  feature is most useful for turning long, repeated pieces of text
       into short ones.

       Variables are referenced by ${variable_name}, as in the following examples.

	    foo = bar	    # set variable 'foo' to value 'bar'
	    who = ${foo}    # sets variable 'who' to value of variable 'foo'
	    my = "${foo} a" # sets variable 'my' to "bar a"

       If the variable exists in a section or subsection, it can be referenced as  ${section.sub-
       section.variable}.   Forward references are not allowed.  Relative references are allowed,
       by pre-pending the name with one or more period.

	    blogs = ${.foo}

       Will set variable blogs to the value of variable foo, from the current section.

	    blogs = ${..foo}

       Will set variable blogs to the value of variable foo, from the section which contains  the
       current section.

	    blogs = ${modules.detail.filename}

       Will  set variable blogs to the value of variable filename, of the detail module, which is
       in the modules section of the configuration file.

       Properties of anonymous parent  sections  may  also  be	referenced,  currently	name  and
       instance are supported.

	    modules  {		 example foo {		      file = ${.:name}		 }	}
	     Will set variable file to the name of the containing section (example).

	    modules {		example foo {		      file  =  ${.:instance}		}
	    }	    Will set variable file to the instance name of the containing section (foo).

	    modules {		example foo {		     file = ${..:name}		 }	}
	     Will set variable file to the name of the parent of  the  containing  section  (mod-
       ules).

FILES
       /etc/raddb/radiusd.conf

SEE ALSO
       radiusd(8) unlang(5)

AUTHOR
       Alan DeKok <aland@freeradius.org>

					   28 Jun 2013				  radiusd.conf(5)
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