RADDB 2.1.7 and /etc/shadow

sbchem twise at chem.ucsb.edu
Sat May 22 23:37:22 CEST 2010


> Is the user in /etc/passwd and /etc/shadow?

Yes

>If so, check permissions

/etc/shadow was chgrp'd to radiusd in spite of John Dennis' warnings to the
contrary --

BUT I forgot to change the read permission -- my fault totally -- 

 >Which file did I tell you to modify?

modules/passwd edited as follows:

passwd {
        filename = /etc/shadow
        format = "*User-Name::Crypt-Password::::::"
        hashsize = 100
        ignorenislike = no
        allowmultiplekeys = no

and site-enabled/default edited to include passwd in the authorize section

and voila' it works -- thanks!! --- BUT ------

you and John Dennis both mentioned PAM so I went ahead and commented out the
passwd entires and  I am now looking at PAM per your suggestion.

Installed the pam-radius client per
http://freeradius.org/pam_radius_auth/ 

and made the changes to /etc/pam.d/. 

Created the file /etc/raddb/server and uncommented pam from
sites-enabled/default.

Added Default Auth-Type = PAM to the users file.

Now I get this output after running radtest


rad_recv: Access-Request packet from host 127.0.0.1 port 49068, id=108,
length=56
        User-Name = "test"
        User-Password = "password"
        NAS-IP-Address = 10.0.10.21
        NAS-Port = 0
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[suffix] No '@' in User-Name = "test", looking up realm NULL
[suffix] No such realm "NULL"
++[suffix] returns noop
[eap] No EAP-Message, not doing EAP
++[eap] returns noop
++[unix] returns updated
[files] users: Matched entry DEFAULT at line 205
++[files] returns ok
++[expiration] returns noop
++[logintime] returns noop
[pap] Found existing Auth-Type, not changing it.
++[pap] returns noop
Found Auth-Type = PAM
+- entering group authenticate {...}
pam_pass: using pamauth string <radiusd> for pam.conf lookup
pam_pass: function pam_authenticate FAILED for <test>. Reason: Module is
unknown
++[pam] returns reject
Failed to authenticate the user.
Using Post-Auth-Type Reject
+- entering group REJECT {...}
[attr_filter.access_reject]     expand: %{User-Name} -> test
 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 0.9 seconds.
Sending delayed reject for request 0
Sending Access-Reject of id 108 to 127.0.0.1 port 49068
Waking up in 4.9 seconds.
Cleaning up request 0 ID 108 with timestamp +6
Ready to process requests.

Not sure why it sez "pam_pass: using pamauth string <radiusd> for pam.conf
lookup" whne it is set to look at /etc/pam.d/radiusd

Thoughts?

many thanks in advance



radiusd -X now yields:

[root at labprinter raddb]# radiusd -X
FreeRADIUS Version 2.1.7, for host x86_64-redhat-linux-gnu, built on Mar 31
2010 at 00:14:28
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/radutmp
including configuration file /etc/raddb/modules/digest
including configuration file /etc/raddb/modules/files
including configuration file /etc/raddb/modules/detail.log
including configuration file /etc/raddb/modules/mac2vlan
including configuration file /etc/raddb/modules/unix
including configuration file /etc/raddb/modules/smsotp
including configuration file /etc/raddb/modules/linelog
including configuration file /etc/raddb/modules/inner-eap
including configuration file /etc/raddb/modules/echo
including configuration file /etc/raddb/modules/sqlcounter_expire_on_login
including configuration file /etc/raddb/modules/sql_log
including configuration file /etc/raddb/modules/detail
including configuration file /etc/raddb/modules/exec
including configuration file /etc/raddb/modules/etc_group
including configuration file /etc/raddb/modules/expiration
including configuration file /etc/raddb/modules/realm
including configuration file /etc/raddb/modules/sradutmp
including configuration file /etc/raddb/modules/acct_unique
including configuration file /etc/raddb/modules/logintime
including configuration file /etc/raddb/modules/perl
including configuration file /etc/raddb/modules/ippool
including configuration file /etc/raddb/modules/counter
including configuration file /etc/raddb/modules/attr_rewrite
including configuration file /etc/raddb/modules/policy
including configuration file /etc/raddb/modules/passwd
including configuration file /etc/raddb/modules/mac2ip
including configuration file /etc/raddb/modules/mschap
including configuration file /etc/raddb/modules/detail.example.com
including configuration file /etc/raddb/modules/preprocess
including configuration file /etc/raddb/modules/checkval
including configuration file /etc/raddb/modules/chap
including configuration file /etc/raddb/modules/pam
including configuration file /etc/raddb/modules/expr
including configuration file /etc/raddb/modules/always
including configuration file /etc/raddb/modules/otp
including configuration file /etc/raddb/modules/pap
including configuration file /etc/raddb/modules/smbpasswd
including configuration file /etc/raddb/modules/cui
including configuration file /etc/raddb/modules/attr_filter
including configuration file /etc/raddb/modules/wimax
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/inner-tunnel
including configuration file /etc/raddb/sites-enabled/default
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/lib64/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"
 }
 client 10.0.10.0/24 {
        require_message_authenticator = no
        secret = "testing123"
        shortname = "wireless"
 }
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_pam
 Module: Instantiating pam
  pam {
        pam_auth = "radiusd"
  }
 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_passwd
 Module: Instantiating passwd
  passwd {
        filename = "/etc/shadow"
        format = "*User-Name::Crypt-Password::::::"
        delimiter = ":"
        ignorenislike = no
        ignoreempty = yes
        allowmultiplekeys = no
        hashsize = 100
  }
rlm_passwd: can't build hashtable from passwd file
/etc/raddb/modules/passwd[31]: Instantiation failed for module "passwd"
/etc/raddb/sites-enabled/default[275]: Failed to find module "passwd".
/etc/raddb/sites-enabled/default[234]: Errors parsing authenticate section. 


I appreciate your time and guidance.




Alan DeKok-2 wrote:
> 
> sbchem wrote:
>> I would assume it means that the unix module could not find the user.
> 
>   Yes.  Is the user in /etc/passwd and /etc/shadow?
> 
>   If so, check permissions, and maybe configure PAM.
> 
>   If not...
> 
>> Based on your prior mesage should I be putting the reference to
>> /etc/shadow
>> in the unix module or the passwd module?
> 
>   Which file did I tell you to modify?
> 
>   Alan DeKok.
> -
> List info/subscribe/unsubscribe? See
> http://www.freeradius.org/list/users.html
> 
> 

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