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diff --git a/raddb/proxy.conf b/raddb/proxy.conf new file mode 100644 index 0000000..26f620c --- /dev/null +++ b/raddb/proxy.conf @@ -0,0 +1,872 @@ +# -*- 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. + # However, it means that the server (i.e. proxy) NEVER + # originates packets. It proxies packets ONLY when it receives + # a packet or a re-transmission from the NAS. If the NAS never + # re-transmits, the proxy never re-transmits, either. This can + # affect fail-over, where a packet does *not* fail over to a + # second home server.. because the NAS never retransmits the + # packet. + # + # If you need to set "synchronous = no", please send a + # message to the list <freeradius-users@lists.freeradius.org> + # 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 + + # + # Whether or not we allow dynamic home servers. + # + # This setting should be "no" by default. If set to "yes", + # it can slow the server down, due to mutex locking across + # multiple threads. + # + # Dynamic servers will work ONLY with the "directory" + # configuration below. + # +# dynamic = yes + + # + # The directory which contains dynamic home servers. Each + # file in the directory should be a normal "home_server" + # definitions. This directory does not exist by default. + # + # e.g: The content of home_servers/example.com should be + # a home server definition. + # + # The name of the home server MUST be the same as the + # filename. + # + # Each home server must be set to only one type. e.g. + # "type = auth", and not "type = auth+acct" + # + # For example: + # + # home_server example.com { + # type = auth + # ipaddr = ... + # ... + # } + # + # For complete documentation, please see + # + # doc/configuration/dynamic_home_servers.md + # +# directory = ${confdir}/home_servers + +} + +####################################################################### +# +# Configuration for the proxy realms. +# +# As of 2.0, the "realm" configuration has changed. Instead of +# specifying "authhost" and "accthost" in a realm section, the home +# servers are specified separately 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 +# sections 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. +# +# See sites-available/tls for an example of configuring home servers, +# pools, and realms with TLS. +# + +###################################################################### +# +# 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. +# +# You can proxy to a specific home server by doing: +# +# update control { +# Home-Server-Name = "name of home server" +# } +# +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" + # coa - Handles CoA-Request and Disconnect-Request packets. + # See also raddb/sites-available/originate-coa + 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. + # + # Unlike proxying to a regular home server, requests + # proxied to a virtual server will be passed through + # pre-proxy and post-proxy sections in the + # destination virtual server, rather than those in + # the virtual server currently processing the 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. + # Use 3799 for type "coa" + # + port = 1812 + + # + # The transport protocol. + # + # If unspecified, defaults to "udp", which is the traditional + # RADIUS transport. It may also be "tcp", in which case TCP + # will be used to talk to this home server. + # + # When home servers are put into pools, the pool can contain + # home servers with both UDP and TCP transports. + # + #proto = udp + + # + # 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. + # + ############################################################ + + # + # You can optionally specify the source IP address used when + # proxying requests to this home server. When the src_ipaddr + # it set, the server will automatically create a proxy + # listener for that IP address. + # + # If you specify this field for one home server, you will + # likely need to specify it for ALL home servers. + # + # If you don't care about the source IP address, leave this + # entry commented. + # +# src_ipaddr = 127.0.0.1 + + # + # If the home server does not respond to a request within + # this time, the server marks the request as timed out. + # After "response_timeouts", the home server is marked + # as being "zombie", and "zombie_period" starts. + # + # The response window can be a number between 0.001 and 60.000 + # Values on the low end are discouraged, as they will likely + # not work due to limitations of operating system timers. + # + # The default response window is large because responses may + # be slow, especially when proxying across the Internet. + # + # Useful range of values: 5 to 60 + response_window = 20 + + # + # Start "zombie_period" after this many responses have + # timed out. + # +# response_timeouts = 1 + + # + # If the home server does not respond to ANY packets during + # the "zombie period", it will be considered to be dead. + # + # A home server that is marked "zombie" will be used for + # proxying as a low priority. If there are live servers, + # they will always be preferred to a zombie. Requests will + # be proxied to a zombie server ONLY when there are no + # live servers. + # + # Any request that is proxied to a home server will continue + # to be sent to that home server until the home server is + # marked dead. At that point, it will fail over to another + # server, if a live server is available. If none is available, + # then the "post-proxy-type fail" handler will be called. + # + # If "status_check" below is something other than "none", then + # the server will start sending status checks at the start of + # the zombie period. It will continue sending status checks + # until the home server is marked "alive". + # + # 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". + # + # The "revive_interval" is used ONLY if the "status_check" + # entry below is "none". Otherwise, it will not be used, + # and should be deleted. + # + # Useful range of values: 10 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. With status-server if + # the home server is marked as a zombie and a status-server + # response is received, it will be immediately marked as live. + # + # This prevents spurious failovers in federations such as + # eduroam, where intermediary proxy servers may be functional + # but the servers of a home institution may not be, + # + # 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 + + # + # Wait "check_timeout" seconds for a reply to a status check + # packet. + # + check_timeout = 4 + + # + # 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 + + # + # Limit the total number of outstanding packets to the home + # server. + # + # if ((#request sent) - (#requests received)) > max_outstanding + # then stop sending more packets to the home server + # + # This lets us gracefully fall over when the home server + # is overloaded. + max_outstanding = 65536 + + # + # The configuration items in the next sub-section are used ONLY + # when "type = coa". It is ignored for all other type of home + # servers. + # + # See RFC 5080 for the definitions of the following terms. + # RAND is a function (internal to FreeRADIUS) returning + # random numbers between -0.1 and +0.1 + # + # First Re-transmit occurs after: + # + # RT = IRT + RAND*IRT + # + # Subsequent Re-transmits occur after: + # + # RT = 2 * RTprev + RAND * RTprev + # + # Re-transmits are capped at: + # + # if (MRT && (RT > MRT)) RT = MRT + RAND * MRT + # + # For a maximum number of attempts: MRC + # + # For a maximum (total) period of time: MRD. + # + coa { + # Initial retransmit interval: 1..5 + irt = 2 + + # Maximum Retransmit Timeout: 1..30 (0 == no maximum) + mrt = 16 + + # Maximum Retransmit Count: 1..20 (0 == retransmit forever) + mrc = 5 + + # Maximum Retransmit Duration: 5..60 + mrd = 30 + } + + # + # Connection limiting for home servers with "proto = tcp". + # + # This section is ignored for other home servers. + # + limit { + # + # Limit the number of TCP connections to the home server. + # + # The default is 16. + # Setting this to 0 means "no limit" + max_connections = 16 + + # + # Limit the total number of requests sent over one + # TCP connection. After this number of requests, the + # connection will be closed. Any new packets that are + # proxied to the home server will result in a new TCP + # connection being made. + # + # Setting this to 0 means "no limit" + max_requests = 0 + + # + # The lifetime, in seconds, of a TCP connection. After + # this lifetime, the connection will be closed. + # + # Setting this to 0 means "forever". + lifetime = 0 + + # + # The idle timeout, in seconds, of a TCP connection. + # If no packets have been sent over the connection for + # this time, the connection will be closed. + # + # Setting this to 0 means "no timeout". + idle_timeout = 0 + } + +} + +# 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. +# +# You can proxy to a specific home server pool by doing: +# +# update control { +# Home-Server-Pool = "name of pool" +# } +# +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 from the destination + # virtual server are run 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! + # + # Note: When packets are proxied to this fallback home server, + # if it is a virtual server, the pre-proxy and post-proxy sections + # from the destination virtual server will be run instead of those + # in the current virtual server. + # + #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 + + # The server can proxy CoA packets based on the Operator-Name + # attribute. This requires that the "suffix" module be + # listed in the "recv-coa" section. + # + # See raddb/sites-available/coa + # +# coa_pool = name_of_coa_pool + + # + # 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. + # + # Note that if the system is doing EAP, you MUST set the "nostrip" + # option for realms used in EAP. Otherwise EAP will fail. + # + # 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.example.com:1600 +# accthost = radius.example.com:1601 +# secret = testing123 +#} + +# +# This realm is for ALL OTHER requests. +# +#realm DEFAULT { +# authhost = radius.example.com:1600 +# accthost = radius.example.com:1601 +# secret = testing123 +#} + + +# This realm "proxies" requests internally to a virtual server. +# The pre-proxy and post-proxy sections from the destination +# virtual server are run rather than those in the current +# virtual server. The destination 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. +# +# Realms are almost always domain names, and therefore realm names +# are compared in a case-insensitive fashion. +# +#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.net$" and ".*\.test\.example\.net$" will result in +# the second realm NEVER matching. This is because all of the realms +# which match the second regex also match the first one. Since the +# first regex matches, it is returned. +# +# The solution is to list the realms in the opposite order,. e.g. +# ".*\.test\.example.net$", followed by ".*\.example\.net$". +# +# +# Some helpful rules: +# +# - always place a '~' character at the start of the realm name. +# This signifies that it is a regex match, and not an exact match +# for the realm. +# +# - place the regex in double quotes. This helps the configuration +# file parser ignore any "special" characters in the regex. +# Yes, this rule is different than the normal "unlang" rules for +# regular expressions. That may be fixed in a future release. +# +# - If you are matching domain names, put a '$' 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\.net" +# will match "test.example.netFOO", which is likely not what you want. +# Using "~(.*\.)example\.net$" is better. +# +# The more regex realms that are defined, the more time it takes to +# process them. You should define as few regex realms as possible +# in order to maximize server performance. +# +#realm "~(.*\.)*example\.net$" { +# auth_pool = my_auth_failover +#} |