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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 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.

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 '{'.   Sec-tion Section
              tion 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  infor-mation. information.
       mation.


                   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 con-figuration configuration
       figuration  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 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.subsection.vari-able}. ${section.subsection.variable}.
       able}.  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.detailfile}


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

FILES
       /etc/raddb/radiusd.conf

SEE ALSO
       radiusd(8) unlang(5)

AUTHOR
       Alan DeKok <aland@freeradius.org>



                                                 12 Jun 2007                                 radiusd.conf(5)