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30 .Nd RADIUS client configuration file
35 contains the information necessary to configure the RADIUS client
39 The file contains one or more lines of text, each describing a
40 single RADIUS server which will be used by the library.
42 white space is ignored, as are empty lines and lines containing
45 A RADIUS server is described by three to seven fields on a line:
47 .Bl -item -offset indent -compact
64 The fields are separated by white space.
67 character at the beginning of a field begins a comment, which extends
68 to the end of the line.
69 A field may be enclosed in double quotes,
70 in which case it may contain white space and/or begin with the
73 Within a quoted string, the double quote character can
76 and the backslash can be represented by
78 No other escape sequences are supported.
80 The first field gives the service type, either
82 for RADIUS authentication or
84 for RADIUS accounting.
85 If a single server provides both services, two
86 lines are required in the file.
87 Earlier versions of this file did
88 not include a service type.
89 For backward compatibility, if the first
94 the library behaves as if
96 were specified, and interprets the fields in the line as if they
97 were fields two through five.
99 The second field specifies
100 the server host, either as a fully qualified domain name or as a
101 dotted-quad IP address.
102 The host may optionally be followed by a
104 and a numeric port number, without intervening white space.
106 port specification is omitted, it defaults to the
112 file for service types
117 If no such entry is present, the standard ports 1812 and 1813 are
120 The third field contains the shared secret, which should be known
121 only to the client and server hosts.
122 It is an arbitrary string of
123 characters, though it must be enclosed in double quotes if it
124 contains white space.
125 The shared secret may be
126 any length, but the RADIUS protocol uses only the first 128
128 N.B., some popular RADIUS servers have bugs which
129 prevent them from working properly with secrets longer than 16
132 The fourth field contains a decimal integer specifying the timeout in
133 seconds for receiving a valid reply from the server.
135 is omitted, it defaults to 3 seconds.
137 The fifth field contains a decimal integer specifying the maximum
138 number of attempts that will be made to authenticate with the server
140 If omitted, it defaults to 3 attempts.
142 this is the total number of attempts and not the number of retries.
144 The sixth field contains a decimal integer specifying a time interval
145 in seconds when the server will not requested if it was inaccessible
146 on the last try. 0 means ask always.
148 The seventh field contains an IP address on multihomed host. All
149 requests will be binded to this IP.
151 Up to 10 RADIUS servers may be specified for each service type.
152 The servers are tried in
153 round-robin fashion, until a valid response is received or the
154 maximum number of tries has been reached for all servers.
156 The standard location for this file is
157 .Pa /etc/radius.conf .
158 But an alternate pathname may be specified in the call to
160 Since the file contains sensitive information in the form of the
161 shared secrets, it should not be readable except by root.
164 .It Pa /etc/radius.conf
168 # A simple entry using all the defaults:
169 acct radius1.domain.com OurLittleSecret
171 # A server still using the obsolete RADIUS port, with increased
172 # timeout and maximum tries:
173 auth auth.domain.com:1645 "I can't see you" 5 4
175 # As above but set dead time and bind address
176 auth auth.domain.com:1645 "I can't see you" 5 4 60 192.168.1.8
178 # A server specified by its IP address:
179 auth 192.168.27.81 $X*#..38947ax-+=
185 .%T "Remote Authentication Dial In User Service (RADIUS)"
190 .%T RADIUS Accounting
194 This documentation was written by
198 project by Juniper Networks, Inc.