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

       radiusd.conf - configuration file for the FreeRADIUS server

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

       There  are  a  large number of configuration parameters for the server.
       Most are documented in the file itself as comments.   This  page  docu-
       ments  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  configura-
       tion.   This means that you can put almost anything into the configura-
       tion file.  So long as it is properly formatted, 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.

       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), sec-
       tions, and comments.

              Variables can be set via:

                   name = value

              Single and double-quoted strings are permitted:

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

              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

                   section foo {

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

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

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

                   foo = "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  white-
              space is preserved in the final value.

       The  value  of a variable can reference another variable.  These refer-
       ences are evaluated when the configuration file is loaded, which  means
       that  there  is no run-time cost associated 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 exam-

            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.subsection.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

            blogs = ${..foo}

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

            blogs = ${modules.detail.detailfile}

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


       radiusd(8) unlang(5)

       Alan DeKok <alandATfreeradius.org>

                                  12 Jun 2007                  radiusd.conf(5)