# -*- text -*- ###################################################################### # # This is a virtual server that handles *only* inner tunnel # requests for EAP-TTLS and PEAP types. # # $Id$ # ###################################################################### server inner-tunnel { # # This next section is here to allow testing of the "inner-tunnel" # authentication methods, independently from the "default" server. # It is listening on "localhost", so that it can only be used from # the same machine. # # $ radtest USER PASSWORD 127.0.0.1:18120 0 testing123 # # If it works, you have configured the inner tunnel correctly. To check # if PEAP will work, use: # # $ radtest -t mschap USER PASSWORD 127.0.0.1:18120 0 testing123 # # If that works, PEAP should work. If that command doesn't work, then # # FIX THE INNER TUNNEL CONFIGURATION UNTIL IT WORKS. # # Do NOT keep testing PEAP. It won't help. # listen { ipaddr = 127.0.0.1 port = 18120 type = auth } # Authorization. First preprocess (hints and huntgroups files), # then realms, and finally look in the "users" file. # # The order of the realm modules will determine the order that # we try to find a matching realm. # # Make *sure* that 'preprocess' comes before any realm if you # need to setup hints for the remote radius server authorize { # # The chap module will set 'Auth-Type := CHAP' if we are # handling a CHAP request and Auth-Type has not already been set chap # # If the users are logging in with an MS-CHAP-Challenge # attribute for authentication, the mschap module will find # the MS-CHAP-Challenge attribute, and add 'Auth-Type := MS-CHAP' # to the request, which will cause the server to then use # the mschap module for authentication. mschap # # Pull crypt'd passwords from /etc/passwd or /etc/shadow, # using the system API's to get the password. If you want # to read /etc/passwd or /etc/shadow directly, see the # passwd module, above. # # unix # # Look for IPASS style 'realm/', and if not found, look for # '@realm', and decide whether or not to proxy, based on # that. # IPASS # # If you are using multiple kinds of realms, you probably # want to set "ignore_null = yes" for all of them. # Otherwise, when the first style of realm doesn't match, # the other styles won't be checked. # # Note that proxying the inner tunnel authentication means # that the user MAY use one identity in the outer session # (e.g. "anonymous", and a different one here # (e.g. "user@example.com"). The inner session will then be # proxied elsewhere for authentication. If you are not # careful, this means that the user can cause you to forward # the authentication to another RADIUS server, and have the # accounting logs *not* sent to the other server. This makes # it difficult to bill people for their network activity. # suffix # ntdomain # # The "suffix" module takes care of stripping the domain # (e.g. "@example.com") from the User-Name attribute, and the # next few lines ensure that the request is not proxied. # # If you want the inner tunnel request to be proxied, delete # the next few lines. # update control { Proxy-To-Realm := LOCAL } # # This module takes care of EAP-MSCHAPv2 authentication. # # It also sets the EAP-Type attribute in the request # attribute list to the EAP type from the packet. # # The example below uses module failover to avoid querying all # of the following modules if the EAP module returns "ok". # Therefore, your LDAP and/or SQL servers will not be queried # for the many packets that go back and forth to set up TTLS # or PEAP. The load on those servers will therefore be reduced. # eap { ok = return } # # Read the 'users' file files # # Look in an SQL database. The schema of the database # is meant to mirror the "users" file. # # See "Authorization Queries" in sql.conf # sql # # If you are using /etc/smbpasswd, and are also doing # mschap authentication, the un-comment this line, and # configure the 'etc_smbpasswd' module, above. # etc_smbpasswd # # The ldap module will set Auth-Type to LDAP if it has not # already been set # ldap # # Enforce daily limits on time spent logged in. # daily # # Use the checkval module # checkval expiration logintime # # If no other module has claimed responsibility for # authentication, then try to use PAP. This allows the # other modules listed above to add a "known good" password # to the request, and to do nothing else. The PAP module # will then see that password, and use it to do PAP # authentication. # # This module should be listed last, so that the other modules # get a chance to set Auth-Type for themselves. # pap } # Authentication. # # # This section lists which modules are available for authentication. # Note that it does NOT mean 'try each module in order'. It means # that a module from the 'authorize' section adds a configuration # attribute 'Auth-Type := FOO'. That authentication type is then # used to pick the apropriate module from the list below. # # In general, you SHOULD NOT set the Auth-Type attribute. The server # will figure it out on its own, and will do the right thing. The # most common side effect of erroneously setting the Auth-Type # attribute is that one authentication method will work, but the # others will not. # # The common reasons to set the Auth-Type attribute by hand # is to either forcibly reject the user, or forcibly accept him. # authenticate { # # PAP authentication, when a back-end database listed # in the 'authorize' section supplies a password. The # password can be clear-text, or encrypted. Auth-Type PAP { pap } # # Most people want CHAP authentication # A back-end database listed in the 'authorize' section # MUST supply a CLEAR TEXT password. Encrypted passwords # won't work. Auth-Type CHAP { chap } # # MSCHAP authentication. Auth-Type MS-CHAP { mschap } # # Pluggable Authentication Modules. # pam # # See 'man getpwent' for information on how the 'unix' # module checks the users password. Note that packets # containing CHAP-Password attributes CANNOT be authenticated # against /etc/passwd! See the FAQ for details. # unix # Uncomment it if you want to use ldap for authentication # # Note that this means "check plain-text password against # the ldap database", which means that EAP won't work, # as it does not supply a plain-text password. # Auth-Type LDAP { # ldap # } # # Allow EAP authentication. eap } ###################################################################### # # There are no accounting requests inside of EAP-TTLS or PEAP # tunnels. # ###################################################################### # Session database, used for checking Simultaneous-Use. Either the radutmp # or rlm_sql module can handle this. # The rlm_sql module is *much* faster session { radutmp # # See "Simultaneous Use Checking Queries" in sql.conf # sql } # Post-Authentication # Once we KNOW that the user has been authenticated, there are # additional steps we can take. post-auth { # Note that we do NOT assign IP addresses here. # If you try to assign IP addresses for EAP authentication types, # it WILL NOT WORK. You MUST use DHCP. # # If you want to have a log of authentication replies, # un-comment the following line, and the 'detail reply_log' # section, above. # reply_log # # After authenticating the user, do another SQL query. # # See "Authentication Logging Queries" in sql.conf # sql # # Instead of sending the query to the SQL server, # write it into a log file. # # sql_log # # Un-comment the following if you have set # 'edir_account_policy_check = yes' in the ldap module sub-section of # the 'modules' section. # # ldap # # Access-Reject packets are sent through the REJECT sub-section of the # post-auth section. # # Add the ldap module name (or instance) if you have set # 'edir_account_policy_check = yes' in the ldap module configuration # Post-Auth-Type REJECT { # log failed authentications in SQL, too. # sql attr_filter.access_reject } # # The example policy below updates the outer tunnel reply # (usually Access-Accept) with the User-Name from the inner # tunnel User-Name. Since this section is processed in the # context of the inner tunnel, "request" here means "inner # tunnel request", and "outer.reply" means "outer tunnel # reply attributes". # # This example is most useful when the outer session contains # a User-Name of "anonymous@....", or a MAC address. If it # is enabled, the NAS SHOULD use the inner tunnel User-Name # in subsequent accounting packets. This makes it easier to # track user sessions, as they will all be based on the real # name, and not on "anonymous". # # The problem with doing this is that it ALSO exposes the # real user name to any intermediate proxies. People use # "anonymous" identifiers outside of the tunnel for a very # good reason: it gives them more privacy. Setting the reply # to contain the real user name removes ALL privacy from # their session. # # If you want privacy to remain, see the # Chargeable-User-Identity attribute from RFC 4372. In order # to use that attribute, you will have to allocate a # per-session identifier for the user, and store it in a # long-term database (e.g. SQL). You should also use that # attribute INSTEAD of the configuration below. # #update outer.reply { # User-Name = "%{request:User-Name}" #} } # # When the server decides to proxy a request to a home server, # the proxied request is first passed through the pre-proxy # stage. This stage can re-write the request, or decide to # cancel the proxy. # # Only a few modules currently have this method. # pre-proxy { # attr_rewrite # Uncomment the following line if you want to change attributes # as defined in the preproxy_users file. # files # Uncomment the following line if you want to filter requests # sent to remote servers based on the rules defined in the # 'attrs.pre-proxy' file. # attr_filter.pre-proxy # If you want to have a log of packets proxied to a home # server, un-comment the following line, and the # 'detail pre_proxy_log' section, above. # pre_proxy_log } # # When the server receives a reply to a request it proxied # to a home server, the request may be massaged here, in the # post-proxy stage. # post-proxy { # If you want to have a log of replies from a home server, # un-comment the following line, and the 'detail post_proxy_log' # section, above. # post_proxy_log # attr_rewrite # Uncomment the following line if you want to filter replies from # remote proxies based on the rules defined in the 'attrs' file. # attr_filter.post-proxy # # If you are proxying LEAP, you MUST configure the EAP # module, and you MUST list it here, in the post-proxy # stage. # # You MUST also use the 'nostrip' option in the 'realm' # configuration. Otherwise, the User-Name attribute # in the proxied request will not match the user name # hidden inside of the EAP packet, and the end server will # reject the EAP request. # eap # # If the server tries to proxy a request and fails, then the # request is processed through the modules in this section. # # The main use of this section is to permit robust proxying # of accounting packets. The server can be configured to # proxy accounting packets as part of normal processing. # Then, if the home server goes down, accounting packets can # be logged to a local "detail" file, for processing with # radrelay. When the home server comes back up, radrelay # will read the detail file, and send the packets to the # home server. # # With this configuration, the server always responds to # Accounting-Requests from the NAS, but only writes # accounting packets to disk if the home server is down. # # Post-Proxy-Type Fail { # detail # } } } # inner-tunnel server block