Re: FreeRadius - LDAP

20 Jul 2011


      You're using LDAP with POSIX type users, including shadow passwords.  I'm pretty
sure this means you cannot use CHAP on the client end, but must use PAP.  Somebody
can correct me if I'm wrong about this.

While they are at it, maybe they can let me know how to get FreeRADIUS to respect
the shadow password aging attibutes. :-/
...
Il 20/07/11 10.19, Fajar A. Nugraha-2 [via FreeRadius] ha scritto:
...
On Wed, Jul 20, 2011 at 3:07 PM, m4xmr <[hidden email]
</user/SendEmail.jtp?type=node&node=4615111&i=0>> wrote:
...
Hello,
I'm trying to make working LDAP as authentication backend for RADIUS.
I verified that the data are right and the query to LDAP is properly
working
if I use ldapsearch.
does LDAP BIND work correctly using ldapsearch (i.e. ldapsearch -D)
I tried:  ldapsearch -x -b "dc=example,dc=com" "uid=ldapuser"
and it works good:
# extended LDIF
#
# LDAPv3
# base <dc=example,dc=com> with scope subtree
# filter: uid=ldapuser
# requesting: ALL
#
# ldapuser, People, example.com
dn: uid=ldapuser,ou=People,dc=example,dc=com
uid: ldapuser
cn: ldapuser
objectClass: account
objectClass: posixAccount
objectClass: top
objectClass: shadowAccount
userPassword:: MTIxMjEyIA==
shadowLastChange: 15174
shadowMin: 0
shadowMax: 99999
shadowWarning: 7
loginShell: /bin/bash
uidNumber: 500
gidNumber: 100
homeDirectory: /home/ldapuser
# search result
search: 2
result: 0 Success
# numResponses: 2
# numEntries: 1
...
...
rad_recv: Access-Request packet from host 127.0.0.1:59221, id=78,
length=60
       User-Name = "ldapuser"
       User-Password = "121212"
...
rlm_ldap: Setting Auth-Type = ldap
Hmmm ... that's odd. I thought rlm_ldap was supposed to just grab
attributes (e.g. Cleartext-Password) and not set the Auth-Type? Are
you doing anything special like forcing Auth-Type := LDAP?
I was following a tutorial, this one:
http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch31_:_Centr...
...
...
rlm_ldap: user ldapuser authorized to use remote access
this line says there's a user called ldapuser
...
rlm_ldap: - authenticate
rlm_ldap: login attempt by "ldapuser" with password "121212"
rlm_ldap: user DN: uid=ldapuser,ou=People,dc=example,dc=com
rlm_ldap: (re)connect to localhost:389, authentication 1
rlm_ldap: bind as uid=ldapuser,ou=People,dc=example,dc=com/121212 to
localhost:389
rlm_ldap: waiting for bind result ...
rlm_ldap: Bind failed with invalid credentials
... while this one says the bind failed. Is the password correct?
I configured that password..., it could be some problem of hasing..., maybe.
Anyway I have upgraded to FreeRADIUS Version 2.1.7
this is the output of radiusd -X
radiusd -X
FreeRADIUS Version 2.1.7, for host i686-redhat-linux-gnu, built on Mar
31 2010 at 00:25:31
Copyright (C) 1999-2009 The FreeRADIUS server project and contributors.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
You may redistribute copies of FreeRADIUS under the terms of the
GNU General Public License v2.
Starting - reading configuration files ...
including configuration file /etc/raddb/radiusd.conf
including configuration file /etc/raddb/proxy.conf
including configuration file /etc/raddb/clients.conf
including files in directory /etc/raddb/modules/
including configuration file /etc/raddb/modules/digest
including configuration file /etc/raddb/modules/exec
including configuration file /etc/raddb/modules/cui
including configuration file /etc/raddb/modules/realm
including configuration file /etc/raddb/modules/attr_rewrite
including configuration file /etc/raddb/modules/radutmp
including configuration file /etc/raddb/modules/sradutmp
including configuration file /etc/raddb/modules/detail.example.com
including configuration file /etc/raddb/modules/linelog
including configuration file /etc/raddb/modules/smsotp
including configuration file /etc/raddb/modules/ippool
including configuration file /etc/raddb/modules/wimax
including configuration file /etc/raddb/modules/detail
including configuration file /etc/raddb/modules/inner-eap
including configuration file /etc/raddb/modules/passwd
including configuration file /etc/raddb/modules/mschap
including configuration file /etc/raddb/modules/files
including configuration file /etc/raddb/modules/smbpasswd
including configuration file /etc/raddb/modules/ldap
including configuration file /etc/raddb/modules/etc_group
including configuration file /etc/raddb/modules/always
including configuration file /etc/raddb/modules/counter
including configuration file /etc/raddb/modules/echo
including configuration file /etc/raddb/modules/sqlcounter_expire_on_login
including configuration file /etc/raddb/modules/checkval
including configuration file /etc/raddb/modules/sql_log
including configuration file /etc/raddb/modules/pam
including configuration file /etc/raddb/modules/mac2vlan
including configuration file /etc/raddb/modules/chap
including configuration file /etc/raddb/modules/pap
including configuration file /etc/raddb/modules/mac2ip
including configuration file /etc/raddb/modules/otp
including configuration file /etc/raddb/modules/unix
including configuration file /etc/raddb/modules/policy
including configuration file /etc/raddb/modules/detail.log
including configuration file /etc/raddb/modules/attr_filter
including configuration file /etc/raddb/modules/acct_unique
including configuration file /etc/raddb/modules/expr
including configuration file /etc/raddb/modules/expiration
including configuration file /etc/raddb/modules/logintime
including configuration file /etc/raddb/modules/perl
including configuration file /etc/raddb/modules/preprocess
including configuration file /etc/raddb/eap.conf
including configuration file /etc/raddb/policy.conf
including files in directory /etc/raddb/sites-enabled/
including configuration file /etc/raddb/sites-enabled/default
including configuration file /etc/raddb/sites-enabled/inner-tunnel
including configuration file /etc/raddb/sites-enabled/control-socket
group = radiusd
user = radiusd
including dictionary file /etc/raddb/dictionary
main {
  prefix = "/usr"
  localstatedir = "/var"
  logdir = "/var/log/radius"
  libdir = "/usr/lib/freeradius"
  radacctdir = "/var/log/radius/radacct"
  hostname_lookups = no
  max_request_time = 30
  cleanup_delay = 5
  max_requests = 1024
  allow_core_dumps = no
  pidfile = "/var/run/radiusd/radiusd.pid"
  checkrad = "/usr/sbin/checkrad"
  debug_level = 0
  proxy_requests = yes
 log {
  stripped_names = no
  auth = no
  auth_badpass = no
  auth_goodpass = no
 }
 security {
  max_attributes = 200
  reject_delay = 1
  status_server = yes
 }
}
radiusd: #### Loading Realms and Home Servers ####
 proxy server {
  retry_delay = 5
  retry_count = 3
  default_fallback = no
  dead_time = 120
  wake_all_if_all_dead = no
 }
 home_server localhost {
  ipaddr = 127.0.0.1
  port = 1812
  type = "auth"
  secret = "testing123"
  response_window = 20
  max_outstanding = 65536
  require_message_authenticator = no
  zombie_period = 40
  status_check = "status-server"
  ping_interval = 30
  check_interval = 30
  num_answers_to_alive = 3
  num_pings_to_alive = 3
  revive_interval = 120
  status_check_timeout = 4
  irt = 2
  mrt = 16
  mrc = 5
  mrd = 30
 }
 home_server_pool my_auth_failover {
  type = fail-over
  home_server = localhost
 }
 realm example.com {
  auth_pool = my_auth_failover
 }
 realm LOCAL {
 }
radiusd: #### Loading Clients ####
 client localhost {
  ipaddr = 127.0.0.1
  require_message_authenticator = no
  secret = "testing123"
  nastype = "other"
 }
radiusd: #### Instantiating modules ####
 instantiate {
 Module: Linked to module rlm_exec
 Module: Instantiating exec
  exec {
  wait = no
  input_pairs = "request"
  shell_escape = yes
  }
 Module: Linked to module rlm_expr
 Module: Instantiating expr
 Module: Linked to module rlm_expiration
 Module: Instantiating expiration
  expiration {
  reply-message = "Password Has Expired  "
  }
 Module: Linked to module rlm_logintime
 Module: Instantiating logintime
  logintime {
  reply-message = "You are calling outside your allowed timespan  "
  minimum-timeout = 60
  }
 }
radiusd: #### Loading Virtual Servers ####
server inner-tunnel {
 modules {
 Module: Checking authenticate {...} for more modules to load
 Module: Linked to module rlm_pap
 Module: Instantiating pap
  pap {
  encryption_scheme = "auto"
  auto_header = no
  }
 Module: Linked to module rlm_chap
 Module: Instantiating chap
 Module: Linked to module rlm_mschap
 Module: Instantiating mschap
  mschap {
  use_mppe = yes
  require_encryption = no
  require_strong = no
  with_ntdomain_hack = no
  }
 Module: Linked to module rlm_unix
 Module: Instantiating unix
  unix {
  radwtmp = "/var/log/radius/radwtmp"
  }
 Module: Linked to module rlm_eap
 Module: Instantiating eap
  eap {
  default_eap_type = "md5"
  timer_expire = 60
  ignore_unknown_eap_types = no
  cisco_accounting_username_bug = no
  max_sessions = 2048
  }
 Module: Linked to sub-module rlm_eap_md5
 Module: Instantiating eap-md5
 Module: Linked to sub-module rlm_eap_leap
 Module: Instantiating eap-leap
 Module: Linked to sub-module rlm_eap_gtc
 Module: Instantiating eap-gtc
   gtc {
  challenge = "Password: "
  auth_type = "PAP"
   }
 Module: Linked to sub-module rlm_eap_tls
 Module: Instantiating eap-tls
   tls {
  rsa_key_exchange = no
  dh_key_exchange = yes
  rsa_key_length = 512
  dh_key_length = 512
  verify_depth = 0
  pem_file_type = yes
  private_key_file = "/etc/raddb/certs/server.pem"
  certificate_file = "/etc/raddb/certs/server.pem"
  CA_file = "/etc/raddb/certs/ca.pem"
  private_key_password = "whatever"
  dh_file = "/etc/raddb/certs/dh"
  random_file = "/etc/raddb/certs/random"
  fragment_size = 1024
  include_length = yes
  check_crl = no
  cipher_list = "DEFAULT"
  make_cert_command = "/etc/raddb/certs/bootstrap"
    cache {
  enable = no
  lifetime = 24
  max_entries = 255
    }
   }
 Module: Linked to sub-module rlm_eap_ttls
 Module: Instantiating eap-ttls
   ttls {
  default_eap_type = "md5"
  copy_request_to_tunnel = no
  use_tunneled_reply = no
  virtual_server = "inner-tunnel"
  include_length = yes
   }
 Module: Linked to sub-module rlm_eap_peap
 Module: Instantiating eap-peap
   peap {
  default_eap_type = "mschapv2"
  copy_request_to_tunnel = no
  use_tunneled_reply = no
  proxy_tunneled_request_as_eap = yes
  virtual_server = "inner-tunnel"
   }
 Module: Linked to sub-module rlm_eap_mschapv2
 Module: Instantiating eap-mschapv2
   mschapv2 {
  with_ntdomain_hack = no
   }
 Module: Checking authorize {...} for more modules to load
 Module: Linked to module rlm_realm
 Module: Instantiating suffix
  realm suffix {
  format = "suffix"
  delimiter = "@"
  ignore_default = no
  ignore_null = no
  }
 Module: Linked to module rlm_files
 Module: Instantiating files
  files {
  usersfile = "/etc/raddb/users"
  acctusersfile = "/etc/raddb/acct_users"
  preproxy_usersfile = "/etc/raddb/preproxy_users"
  compat = "no"
  }
 Module: Checking session {...} for more modules to load
 Module: Linked to module rlm_radutmp
 Module: Instantiating radutmp
  radutmp {
  filename = "/var/log/radius/radutmp"
  username = "%{User-Name}"
  case_sensitive = yes
  check_with_nas = yes
  perm = 384
  callerid = yes
  }
 Module: Checking post-proxy {...} for more modules to load
 Module: Checking post-auth {...} for more modules to load
 Module: Linked to module rlm_attr_filter
 Module: Instantiating attr_filter.access_reject
  attr_filter attr_filter.access_reject {
  attrsfile = "/etc/raddb/attrs.access_reject"
  key = "%{User-Name}"
  }
 } # modules
} # server
server {
 modules {
 Module: Checking authenticate {...} for more modules to load
 Module: Linked to module rlm_ldap
 Module: Instantiating ldap
  ldap {
  server = "localhost"
  port = 389
  password = ""
  identity = ""
  net_timeout = 1
  timeout = 4
  timelimit = 3
  tls_mode = no
  start_tls = no
  tls_require_cert = "allow"
   tls {
  start_tls = no
  require_cert = "allow"
   }
  basedn = "dc=example,dc=com"
  filter = "(uid=%{%{Stripped-User-Name}:-%{User-Name}})"
  base_filter = "(objectclass=radiusprofile)"
  auto_header = no
  access_attr_used_for_allow = yes
  groupname_attribute = "cn"
  groupmembership_filter =
"(|(&(objectClass=GroupOfNames)(member=%{Ldap-UserDn}))(&(objectClass=GroupOfUniqueNames)(uniquemember=%{Ldap-UserDn})))"
  dictionary_mapping = "/etc/raddb/ldap.attrmap"
  ldap_debug = 0
  ldap_connections_number = 5
  compare_check_items = no
  do_xlat = yes
  set_auth_type = yes
  }
rlm_ldap: Registering ldap_groupcmp for Ldap-Group
rlm_ldap: Registering ldap_xlat with xlat_name ldap
rlm_ldap: reading ldap<->radius mappings from file /etc/raddb/ldap.attrmap
rlm_ldap: LDAP radiusCheckItem mapped to RADIUS $GENERIC$
rlm_ldap: LDAP radiusReplyItem mapped to RADIUS $GENERIC$
rlm_ldap: LDAP radiusAuthType mapped to RADIUS Auth-Type
rlm_ldap: LDAP radiusSimultaneousUse mapped to RADIUS Simultaneous-Use
rlm_ldap: LDAP radiusCalledStationId mapped to RADIUS Called-Station-Id
rlm_ldap: LDAP radiusCallingStationId mapped to RADIUS Calling-Station-Id
rlm_ldap: LDAP lmPassword mapped to RADIUS LM-Password
rlm_ldap: LDAP ntPassword mapped to RADIUS NT-Password
rlm_ldap: LDAP sambaLmPassword mapped to RADIUS LM-Password
rlm_ldap: LDAP sambaNtPassword mapped to RADIUS NT-Password
rlm_ldap: LDAP dBCSPwd mapped to RADIUS LM-Password
rlm_ldap: LDAP acctFlags mapped to RADIUS SMB-Account-CTRL-TEXT
rlm_ldap: LDAP radiusExpiration mapped to RADIUS Expiration
rlm_ldap: LDAP radiusNASIpAddress mapped to RADIUS NAS-IP-Address
rlm_ldap: LDAP radiusServiceType mapped to RADIUS Service-Type
rlm_ldap: LDAP radiusFramedProtocol mapped to RADIUS Framed-Protocol
rlm_ldap: LDAP radiusFramedIPAddress mapped to RADIUS Framed-IP-Address
rlm_ldap: LDAP radiusFramedIPNetmask mapped to RADIUS Framed-IP-Netmask
rlm_ldap: LDAP radiusFramedRoute mapped to RADIUS Framed-Route
rlm_ldap: LDAP radiusFramedRouting mapped to RADIUS Framed-Routing
rlm_ldap: LDAP radiusFilterId mapped to RADIUS Filter-Id
rlm_ldap: LDAP radiusFramedMTU mapped to RADIUS Framed-MTU
rlm_ldap: LDAP radiusFramedCompression mapped to RADIUS Framed-Compression
rlm_ldap: LDAP radiusLoginIPHost mapped to RADIUS Login-IP-Host
rlm_ldap: LDAP radiusLoginService mapped to RADIUS Login-Service
rlm_ldap: LDAP radiusLoginTCPPort mapped to RADIUS Login-TCP-Port
rlm_ldap: LDAP radiusCallbackNumber mapped to RADIUS Callback-Number
rlm_ldap: LDAP radiusCallbackId mapped to RADIUS Callback-Id
rlm_ldap: LDAP radiusFramedIPXNetwork mapped to RADIUS Framed-IPX-Network
rlm_ldap: LDAP radiusClass mapped to RADIUS Class
rlm_ldap: LDAP radiusSessionTimeout mapped to RADIUS Session-Timeout
rlm_ldap: LDAP radiusIdleTimeout mapped to RADIUS Idle-Timeout
rlm_ldap: LDAP radiusTerminationAction mapped to RADIUS Termination-Action
rlm_ldap: LDAP radiusLoginLATService mapped to RADIUS Login-LAT-Service
rlm_ldap: LDAP radiusLoginLATNode mapped to RADIUS Login-LAT-Node
rlm_ldap: LDAP radiusLoginLATGroup mapped to RADIUS Login-LAT-Group
rlm_ldap: LDAP radiusFramedAppleTalkLink mapped to RADIUS
Framed-AppleTalk-Link
rlm_ldap: LDAP radiusFramedAppleTalkNetwork mapped to RADIUS
Framed-AppleTalk-Network
rlm_ldap: LDAP radiusFramedAppleTalkZone mapped to RADIUS
Framed-AppleTalk-Zone
rlm_ldap: LDAP radiusPortLimit mapped to RADIUS Port-Limit
rlm_ldap: LDAP radiusLoginLATPort mapped to RADIUS Login-LAT-Port
rlm_ldap: LDAP radiusReplyMessage mapped to RADIUS Reply-Message
rlm_ldap: LDAP radiusTunnelType mapped to RADIUS Tunnel-Type
rlm_ldap: LDAP radiusTunnelMediumType mapped to RADIUS Tunnel-Medium-Type
rlm_ldap: LDAP radiusTunnelPrivateGroupId mapped to RADIUS
Tunnel-Private-Group-Id
conns: 0x89d0250
 Module: Checking authorize {...} for more modules to load
 Module: Linked to module rlm_preprocess
 Module: Instantiating preprocess
  preprocess {
  huntgroups = "/etc/raddb/huntgroups"
  hints = "/etc/raddb/hints"
  with_ascend_hack = no
  ascend_channels_per_line = 23
  with_ntdomain_hack = no
  with_specialix_jetstream_hack = no
  with_cisco_vsa_hack = no
  with_alvarion_vsa_hack = no
  }
 Module: Checking preacct {...} for more modules to load
 Module: Linked to module rlm_acct_unique
 Module: Instantiating acct_unique
  acct_unique {
  key = "User-Name, Acct-Session-Id, NAS-IP-Address, Client-IP-Address,
NAS-Port"
  }
 Module: Checking accounting {...} for more modules to load
 Module: Linked to module rlm_detail
 Module: Instantiating detail
  detail {
  detailfile = "/var/log/radius/radacct/%{Client-IP-Address}/detail-%Y%m%d"
  header = "%t"
  detailperm = 384
  dirperm = 493
  locking = no
  log_packet_header = no
  }
 Module: Instantiating attr_filter.accounting_response
  attr_filter attr_filter.accounting_response {
  attrsfile = "/etc/raddb/attrs.accounting_response"
  key = "%{User-Name}"
  }
 Module: Checking session {...} for more modules to load
 Module: Checking post-proxy {...} for more modules to load
 Module: Checking post-auth {...} for more modules to load
 } # modules
} # server
radiusd: #### Opening IP addresses and Ports ####
listen {
  type = "auth"
  ipaddr = *
  port = 0
}
listen {
  type = "acct"
  ipaddr = *
  port = 0
}
listen {
  type = "control"
 listen {
  socket = "/var/run/radiusd/radiusd.sock"
 }
}
Listening on authentication address * port 1812
Listening on accounting address * port 1813
Listening on command file /var/run/radiusd/radiusd.sock
Listening on proxy address * port 1814
Ready to process requests.
--->
NOW, when I try the auth:
radtest ldapuser 121212 localhost 2 testing123
I get this output on the client side
Sending Access-Request of id 207 to 127.0.0.1 port 1812
  User-Name = "ldapuser"
  User-Password = "MTIxMjEyIA=="
  NAS-IP-Address = 127.0.0.1
  NAS-Port = 2
rad_recv: Access-Reject packet from host 127.0.0.1 port 1812, id=207,
length=20
AND this one on the radius server side:
rad_recv: Access-Request packet from host 127.0.0.1 port 36725, id=207,
length=60
  User-Name = "ldapuser"
  User-Password = "MTIxMjEyIA=="
  NAS-IP-Address = 127.0.0.1
  NAS-Port = 2
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[suffix] No '@' in User-Name = "ldapuser", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] returns noop
[eap] No EAP-Message, not doing EAP
++[eap] returns noop
++[unix] returns notfound
++[files] returns noop
[ldap] performing user authorization for ldapuser
[ldap] 	expand: %{Stripped-User-Name} ->
[ldap] 	expand: %{User-Name} -> ldapuser
[ldap] 	expand: (uid=%{%{Stripped-User-Name}:-%{User-Name}}) ->
(uid=ldapuser)
[ldap] 	expand: dc=example,dc=com -> dc=example,dc=com
rlm_ldap: ldap_get_conn: Checking Id: 0
rlm_ldap: ldap_get_conn: Got Id: 0
rlm_ldap: attempting LDAP reconnection
rlm_ldap: (re)connect to localhost:389, authentication 0
rlm_ldap: bind as / to localhost:389
rlm_ldap: waiting for bind result ...
rlm_ldap: Bind was successful
rlm_ldap: performing search in dc=example,dc=com, with filter (uid=ldapuser)
[ldap] looking for check items in directory...
[ldap] looking for reply items in directory...
WARNING: No "known good" password was found in LDAP.  Are you sure that
the user is configured correctly?
[ldap] Setting Auth-Type = LDAP
[ldap] user ldapuser authorized to use remote access
rlm_ldap: ldap_release_conn: Release Id: 0
++[ldap] returns ok
++[expiration] returns noop
++[logintime] returns noop
[pap] WARNING! No "known good" password found for the user.
Authentication may fail because of this.
++[pap] returns noop
Found Auth-Type = LDAP
+- entering group LDAP {...}
[ldap] login attempt by "ldapuser" with password "MTIxMjEyIA=="
[ldap] user DN: uid=ldapuser,ou=People,dc=example,dc=com
rlm_ldap: (re)connect to localhost:389, authentication 1
rlm_ldap: bind as uid=ldapuser,ou=People,dc=example,dc=com/MTIxMjEyIA==
to localhost:389
rlm_ldap: waiting for bind result ...
rlm_ldap: Bind failed with invalid credentials
++[ldap] returns reject
Failed to authenticate the user.
Using Post-Auth-Type Reject
+- entering group REJECT {...}
[attr_filter.access_reject] 	expand: %{User-Name} -> ldapuser
 attr_filter: Matched entry DEFAULT at line 11
++[attr_filter.access_reject] returns updated
Delaying reject of request 0 for 1 seconds
Going to the next request
Waking up in 0.5 seconds.
Sending delayed reject for request 0
Sending Access-Reject of id 207 to 127.0.0.1 port 36725
Waking up in 4.9 seconds.
Cleaning up request 0 ID 207 with timestamp +1224
Ready to process requests.
Do you have any idea?
I'm not seeing something?
Regards,
Max
...
--
Fajar
-
List info/subscribe/unsubscribe? See
http://www.freeradius.org/list/users.html
------------------------------------------------------------------------
If you reply to this email, your message will be added to the discussion
below:
http://freeradius.1045715.n5.nabble.com/FreeRadius-LDAP-tp4615085p4615111.ht...
To unsubscribe from FreeRadius - LDAP, click here
<http://freeradius.1045715.n5.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=4615085&code=bS50b21tYXNpQHB1cnBsZXNybC5jb218NDYxNTA4NXwxMTQ4Njc3MDIx>.
--
View this message in context:
http://freeradius.1045715.n5.nabble.com/FreeRadius-LDAP-tp4615085p4615357.ht...
Sent from the FreeRadius - User mailing list archive at Nabble.com.-
List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html

Re: FreeRadius - LDAP

up＠3.am