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       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
       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  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),
       sections, 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 information.

                   section foo {

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

                   # 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 whitespace is preserved
       in the final value.


       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  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

                   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 = ${}

       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 <>

                                  12 Jun 2007                  radiusd.conf(5)