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# -*- text -*-
##
## proxy.conf -- proxy radius and realm configuration directives
##
## $Id$
#######################################################################
#
# Proxy server configuration
#
# This entry controls the servers behaviour towards ALL other servers
# to which it sends proxy requests.
#
proxy server {
#
# Note that as of 2.0, the "synchronous", "retry_delay",
# "retry_count", and "dead_time" have all been deprecated.
# For backwards compatibility, they are are still accepted
# by the server, but they ONLY apply to the old-style realm
# configuration. i.e. realms with "authhost" and/or "accthost"
# entries.
#
# i.e. "retry_delay" and "retry_count" have been replaced
# with per-home-server configuration. See the "home_server"
# example below for details.
#
# i.e. "dead_time" has been replaced with a per-home-server
# "revive_interval". We strongly recommend that this not
# be used, however. The new method is much better.
#
# In 2.0, the server is always "synchronous", and setting
# "synchronous = no" is impossible. This simplifies the
# server and increases the stability of the network.
#
# If you need to set "synchronous = no", please send a
# message to the list
# explaining why this feature is vital for your network.
#
# If a realm exists, but there are no live home servers for
# it, we can fall back to using the "DEFAULT" realm. This is
# most useful for accounting, where the server can proxy
# accounting requests to home servers, but if they're down,
# use a DEFAULT realm that is LOCAL (i.e. accthost = LOCAL),
# and then store the packets in the "detail" file. That data
# can be later proxied to the home servers by radrelay, when
# those home servers come back up again.
# Setting this to "yes" may have issues for authentication.
# i.e. If you are proxying for two different ISP's, and then
# act as a general dial-up for Gric. If one of the first two
# ISP's has their RADIUS server go down, you do NOT want to
# proxy those requests to GRIC. Instead, you probably want
# to just drop the requests on the floor. In that case, set
# this value to 'no'.
#
# allowed values: {yes, no}
#
default_fallback = no
default_fallback = yes
}
#######################################################################
#
# Configuration for the proxy realms.
#
# As of 2.0. the old-style "realms" file is deprecated, and is not
# used by FreeRADIUS.
#
# As of 2.0, the "realm" configuration has changed. Instead of
# specifying "authhost" and "accthost" in a realm section, the home
# servers are specified seperately in a "home_server" section. For
# backwards compatibility, you can still use the "authhost" and
# "accthost" directives. If you only have one home server for a
# realm, it is easier to use the old-style configuration.
#
# However, if you have multiple servers for a realm, we STRONGLY
# suggest moving to the new-style configuration.
#
#
# Load-balancing and failover between home servers is handled via
# a "home_server_pool" section.
#
# Finally, The "realm" section defines the realm, some options, and
# indicates which server pool should be used for the realm.
#
# This change means that simple configurations now require multiple
# ssections to define a realm. However, complex configurations
# are much simpler than before, as multiple realms can share the same
# server pool.
#
# That is, realms point to server pools, and server pools point to
# home servers. Multiple realms can point to one server pool. One
# server pool can point to multiple home servers. Each home server
# can appear in one or more pools.
#
######################################################################
#
# This section defines a "Home Server" which is another RADIUS
# server that gets sent proxied requests. In earlier versions
# of FreeRADIUS, home servers were defined in "realm" sections,
# which was awkward. In 2.0, they have been made independent
# from realms, which is better for a number of reasons.
#
home_server localhost {
#
# Home servers can be sent Access-Request packets
# or Accounting-Request packets.
#
# Allowed values are:
# auth - Handles Access-Request packets
# acct - Handles Accounting-Request packets
# auth+acct - Handles Access-Request packets at "port",
# and Accounting-Request packets at "port + 1"
type = auth
#
# Configure ONE OF the following entries:
#
# IPv4 address
#
ipaddr = 127.0.0.1
# OR IPv6 address
# ipv6addr = ::1
# OR virtual server
# virtual_server = foo
# Note that while both ipaddr and ipv6addr will accept
# both addresses and host names, we do NOT recommend
# using host names. When you specify a host name, the
# server has to do a DNS lookup to find the IP address
# of the home server. If the DNS server is slow or
# unresponsive, it means that FreeRADIUS will NOT be
# able to determine the address, and will therefore NOT
# start.
#
# Also, the mapping of host name to address is done ONCE
# when the server starts. If DNS is later updated to
# change the address, FreeRADIUS will NOT discover that
# until after a re-start, or a HUP.
#
# If you specify a virtual_server here, then requests
# will be proxied internally to that virtual server.
# These requests CANNOT be proxied again, however. The
# intent is to have the local server handle packets
# when all home servers are dead.
#
# Requests proxied to a virtual server will be passed
# through the pre-proxy and post-proxy sections, just
# like any other request. See also the sample "realm"
# configuration, below.
#
# None of the rest of the home_server configuration is used
# for the "virtual_server" configuration.
#
# The port to which packets are sent.
#
# Usually 1812 for type "auth", and 1813 for type "acct".
# Older servers may use 1645 and 1646.
#
port = 1812
#
# The shared secret use to "encrypt" and "sign" packets between
# FreeRADIUS and the home server.
#
# The secret can be any string, up to 8k characters in length.
#
# Control codes can be entered vi octal encoding,
# e.g. "\101\102" == "AB"
# Quotation marks can be entered by escaping them,
# e.g. "foo\"bar"
# Spaces or other "special" characters can be entered
# by putting quotes around the string.
# e.g. "foo bar"
# "foo;bar"
#
secret = testing123
############################################################
#
# The rest of the configuration items listed here are optional,
# and do not have to appear in every home server definition.
#
############################################################
#
# If the home server doesn't respond to the request within
# this time, this server will consider the request dead, and
# respond to the NAS with an Access-Reject.
#
# Useful range of values: 5 to 60
response_window = 20
#
# If the home server does not respond to ANY packets for
# a certain time, consider it dead. This time period is
# called the "zombie" period, because the server is neither
# alive nor dead.
#
# Useful range of values: 20 to 120
zombie_period = 40
############################################################
#
# As of 2.0, FreeRADIUS supports RADIUS layer "status
# checks". These are used by a proxy server to see if a home
# server is alive.
#
# These status packets are sent ONLY if the proxying server
# believes that the home server is dead. They are NOT sent
# if the proxying server believes that the home server is
# alive. They are NOT sent if the proxying server is not
# proxying packets.
#
# If the home server responds to the status check packet,
# then it is marked alive again, and is returned to use.
#
############################################################
#
# Some home servers do not support status checks via the
# Status-Server packet. Others may not have a "test" user
# configured that can be used to query the server, to see if
# it is alive. For those servers, we have NO WAY of knowing
# when it becomes alive again. Therefore, after the server
# has been marked dead, we wait a period of time, and mark
# it alive again, in the hope that it has come back to
# life.
#
# If it has NOT come back to life, then FreeRADIUS will wait
# for "zombie_period" before marking it dead again. During
# the "zombie_period", ALL AUTHENTICATIONS WILL FAIL, because
# the home server is still dead. There is NOTHING that can
# be done about this, other than to enable the status checks,
# as documented below.
#
# e.g. if "zombie_period" is 40 seconds, and "revive_interval"
# is 300 seconds, the for 40 seconds out of every 340, or about
# 10% of the time, all authentications will fail.
#
# If the "zombie_period" and "revive_interval" configurations
# are set smaller, than it is possible for up to 50% of
# authentications to fail.
#
# As a result, we recommend enabling status checks, and
# we do NOT recommend using "revive_interval".
#
# If the "status_check" entry below is not "none", then the
# "revive_interval" entry can be deleted, as it will not be
# used.
#
# Useful range of values: 60 to 3600
revive_interval = 120
#
# The proxying server (i.e. this one) can do periodic status
# checks to see if a dead home server has come back alive.
#
# If set to "none", then the other configuration items listed
# below are not used, and the "revive_interval" time is used
# instead.
#
# If set to "status-server", the Status-Server packets are
# sent. Many RADIUS servers support Status-Server. If a
# server does not support it, please contact the server
# vendor and request that they add it.
#
# If set to "request", then Access-Request, or Accounting-Request
# packets are sent, depending on the "type" entry above (auth/acct).
#
# Allowed values: none, status-server, request
status_check = status-server
#
# If the home server does not support Status-Server packets,
# then the server can still send Access-Request or
# Accounting-Request packets, with a pre-defined user name.
#
# This practice is NOT recommended, as it may potentially let
# users gain network access by using these "test" accounts!
#
# If it is used, we recommend that the home server ALWAYS
# respond to these Access-Request status checks with
# Access-Reject. The status check just needs an answer, it
# does not need an Access-Accept.
#
# For Accounting-Request status checks, only the username
# needs to be set. The rest of the accounting attribute are
# set to default values. The home server that receives these
# accounting packets SHOULD NOT treat them like normal user
# accounting packets. i.e It should probably NOT log them to
# a database.
#
# username = "test_user_please_reject_me"
# password = "this is really secret"
#
# Configure the interval between sending status check packets.
#
# Setting it too low increases the probability of spurious
# fail-over and fallback attempts.
#
# Useful range of values: 6 to 120
check_interval = 30
#
# Configure the number of status checks in a row that the
# home server needs to respond to before it is marked alive.
#
# If you want to mark a home server as alive after a short
# time period of being responsive, it is best to use a small
# "check_interval", and a large value for
# "num_answers_to_alive". Using a long "check_interval" and
# a small number for "num_answers_to_alive" increases the
# probability of spurious fail-over and fallback attempts.
#
# Useful range of values: 3 to 10
num_answers_to_alive = 3
}
# Sample virtual home server.
home_server virtual.example.com {
virtual_server = virtual.example.com
}
######################################################################
#
# This section defines a pool of home servers that is used
# for fail-over and load-balancing. In earlier versions of
# FreeRADIUS, fail-over and load-balancing were defined per-realm.
# As a result, if a server had 5 home servers, each of which served
# the same 10 realms, you would need 50 "realm" entries.
#
# In version 2.0, you would need 5 "home_server" sections,
# 10 'realm" sections, and one "home_server_pool" section to tie the
# two together.
#
home_server_pool my_auth_failover {
#
# The type of this pool controls how home servers are chosen.
#
# fail-over - the request is sent to the first live
# home server in the list. i.e. If the first home server
# is marked "dead", the second one is chosen, etc.
#
# load-balance - the least busy home server is chosen,
# where "least busy" is counted by taking the number of
# requests sent to that home server, and subtracting the
# number of responses received from that home server.
#
# If there are two or more servers with the same low
# load, then one of those servers is chosen at random.
# This configuration is most similar to the old
# "round-robin" method, though it is not exactly the same.
#
# Note that load balancing does not work well with EAP,
# as EAP requires packets for an EAP conversation to be
# sent to the same home server. The load balancing method
# does not keep state in between packets, meaning that
# EAP packets for the same conversation may be sent to
# different home servers. This will prevent EAP from
# working.
#
# For non-EAP authentication methods, and for accounting
# packets, we recommend using "load-balance". It will
# ensure the highest availability for your network.
#
# client-balance - the home server is chosen by hashing the
# source IP address of the packet. If that home server
# is down, the next one in the list is used, just as
# with "fail-over".
#
# There is no way of predicting which source IP will map
# to which home server.
#
# This configuration is most useful to do simple load
# balancing for EAP sessions, as the EAP session will
# always be sent to the same home server.
#
# client-port-balance - the home server is chosen by hashing
# the source IP address and source port of the packet.
# If that home server is down, the next one in the list
# is used, just as with "fail-over".
#
# This method provides slightly better load balancing
# for EAP sessions than "client-balance". However, it
# also means that authentication and accounting packets
# for the same session MAY go to different home servers.
#
# keyed-balance - the home server is chosen by hashing (FNV)
# the contents of the Load-Balance-Key attribute from the
# control items. The request is then sent to home server
# chosen by taking:
#
# server = (hash % num_servers_in_pool).
#
# If there is no Load-Balance-Key in the control items,
# the load balancing method is identical to "load-balance".
#
# For most non-EAP authentication methods, The User-Name
# attribute provides a good key. An "unlang" policy can
# be used to copy the User-Name to the Load-Balance-Key
# attribute. This method may not work for EAP sessions,
# as the User-Name outside of the TLS tunnel is often
# static, e.g. "anonymous@realm".
#
#
# The default type is fail-over.
type = fail-over
#
# A virtual_server may be specified here. If so, the
# "pre-proxy" and "post-proxy" sections are called when
# the request is proxied, and when a response is received.
#
# This lets you have one policy for all requests that are proxied
# to a home server. This policy is completely independent of
# any policies used to receive, or process the request.
#
#virtual_server = pre_post_proxy_for_pool
#
# Next, a list of one or more home servers. The names
# of the home servers are NOT the hostnames, but the names
# of the sections. (e.g. home_server foo {...} has name "foo".
#
# Note that ALL home servers listed here have to be of the same
# type. i.e. they all have to be "auth", or they all have to
# be "acct", or the all have to be "auth+acct".
#
home_server = localhost
# Additional home servers can be listed.
# There is NO LIMIT to the number of home servers that can
# be listed, though using more than 10 or so will become
# difficult to manage.
#
# home_server = foo.example.com
# home_server = bar.example.com
# home_server = baz.example.com
# home_server = ...
#
# If ALL home servers are dead, then this "fallback" home server
# is used. If set, it takes precedence over any realm-based
# fallback, such as the DEFAULT realm.
#
# For reasons of stability, this home server SHOULD be a virtual
# server. Otherwise, the fallback may itself be dead!
#
#fallback = virtual.example.com
}
######################################################################
#
#
# This section defines a new-style "realm". Note the in version 2.0,
# there are many fewer configuration items than in 1.x for a realm.
#
# Automatic proxying is done via the "realms" module (see "man
# rlm_realm"). To manually proxy the request put this entry in the
# "users" file:
#
#
#DEFAULT Proxy-To-Realm := "realm_name"
#
#
realm example.com {
#
# Realms point to pools of home servers.
#
# For authentication, the "auth_pool" configuration item
# should point to a "home_server_pool" that was previously
# defined. All of the home servers in the "auth_pool" must
# be of type "auth".
#
# For accounting, the "acct_pool" configuration item
# should point to a "home_server_pool" that was previously
# defined. All of the home servers in the "acct_pool" must
# be of type "acct".
#
# If you have a "home_server_pool" where all of the home servers
# are of type "auth+acct", you can just use the "pool"
# configuration item, instead of specifying both "auth_pool"
# and "acct_pool".
auth_pool = my_auth_failover
# acct_pool = acct
#
# Normally, when an incoming User-Name is matched against the
# realm, the realm name is "stripped" off, and the "stripped"
# user name is used to perform matches.
#
# e.g. User-Name = "bob@example.com" will result in two new
# attributes being created by the "realms" module:
#
# Stripped-User-Name = "bob"
# Realm = "example.com"
#
# The Stripped-User-Name is then used as a key in the "users"
# file, for example.
#
# If you do not want this to happen, uncomment "nostrip" below.
#
# nostrip
# There are no more configuration entries for a realm.
}
#
# This is a sample entry for iPass.
# Note that you have to define "ipass_auth_pool" and
# "ipass_acct_pool", along with home_servers for them, too.
#
#realm IPASS {
# nostrip
#
# auth_pool = ipass_auth_pool
# acct_pool = ipass_acct_pool
#}
#
# This realm is used mainly to cancel proxying. You can have
# the "realm suffix" module configured to proxy all requests for
# a realm, and then later cancel the proxying, based on other
# configuration.
#
# For example, you want to terminate PEAP or EAP-TTLS locally,
# you can add the following to the "users" file:
#
# DEFAULT EAP-Type == PEAP, Proxy-To-Realm := LOCAL
#
realm LOCAL {
# If we do not specify a server pool, the realm is LOCAL, and
# requests are not proxied to it.
}
#
# This realm is for requests which don't have an explicit realm
# prefix or suffix. User names like "bob" will match this one.
#
#realm NULL {
# authhost = radius.company.com:1600
# accthost = radius.company.com:1601
# secret = testing123
#}
#
# This realm is for ALL OTHER requests.
#
#realm DEFAULT {
# authhost = radius.company.com:1600
# accthost = radius.company.com:1601
# secret = testing123
#}
# This realm "proxies" requests internally to a virtual server.
# The pre-proxy and post-proxy sections are run just as with any
# other kind of home server. The virtual server then receives
# the request, and replies, just as with any other packet.
#
# Once proxied internally like this, the request CANNOT be proxied
# internally or externally.
#
#realm virtual.example.com {
# virtual_server = virtual.example.com
#}
#
#
# Regular expressions may also be used as realm names. If these are used,
# then the "find matching realm" process is as follows:
#
# 1) Look for a non-regex realm with an *exact* match for the name.
# If found, it is used in preference to any regex matching realm.
#
# 2) Look for a regex realm, in the order that they are listed
# in the configuration files. Any regex match is performed in
# a case-insensitive fashion.
#
# 3) If no realm is found, return the DEFAULT realm, if any.
#
# The order of the realms matters in step (2). For example, defining
# two realms "*.example.com" and "*.test.example.com" will result in
# the second realm NEVER matching. This is because all of the realms
# which match the second regex also match the first one. Since the
# first regex matches, it is returned.
#
# The solution is to list the realms in the opposite order,. e.g.
# "*.test.example.com", followed by "*.example.com".
#
#
# Some helpful rules:
#
# - always place a '~' character at the start of the realm name.
# This signifies that it is a regex match, and not an exact match
# for the realm.
#
# - place the regex in double quotes. This helps the configuration
# file parser ignore any "special" characters in the regex.
# Yes, this rule is different than the normal "unlang" rules for
# regular expressions. That may be fixed in a future release.
#
# - use two back-slashes '\\' whenever you need one backslash in the
# regex. e.g. "~*\\.example\\.com", and not "~*\.example\.com".
# This is because the regex is in a double-quoted string, and normal
# rules apply for double-quoted strings.
#
# - If you are matching domain names, use two backslashes in front of
# every '.' (dot or period). This is because '.' has special meaning
# in a regular expression: match any character. If you do not do this,
# then "~*.example.com" will match "fooXexampleYcom", which is likely
# not what you want
#
# - If you are matching domain names, put a '$' at the end of the regex
# that matches the domain name. This tells the regex matching code
# that the realm ENDS with the domain name, so it does not match
# realms with the domain name in the middle. e.g. "~*\\.example\\.com"
# will match "test.example.comFOO", which is likely not what you want.
# Using "~*\\.example\\.com$" is better.
#
# The more regex realms that are defined, the more time it takes to
# process them. You should define as few regex realms as possible
# in order to maximize server performance.
#
#realm "~*\\.example\\.com$" {
# authhost = LOCAL # not strictly necessary
# accthost = LOCAL # not strictly necessary
#}