Beating a dead horse, or freeradius 2.1.1 and active directory
Ben Little
BLittle at skylight.com
Wed Dec 3 18:39:08 CET 2008
Hello internet pals,
I'm attempting to configure freeradius to be used as a AAA mechanism for
a bunch of cisco routers and switches, I have freeradius working
correctly with local users however it appears that it is completely
ignoring the mschap configuration that I've applied, I'm not sure why...
when attempting to perform a radtest locally I get the following:
lol at id10t$ radiusd -X
FreeRADIUS Version 2.1.1, for host i386-redhat-linux-gnu, built on Nov 24 2008 at 10:30:21
Copyright (C) 1999-2008 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/preprocess
including configuration file /etc/raddb/modules/etc_group
including configuration file /etc/raddb/modules/logintime
including configuration file /etc/raddb/modules/unix
including configuration file /etc/raddb/modules/pam
including configuration file /etc/raddb/modules/expiration
including configuration file /etc/raddb/modules/pap
including configuration file /etc/raddb/modules/mac2vlan
including configuration file /etc/raddb/modules/wimax
including configuration file /etc/raddb/modules/exec
including configuration file /etc/raddb/modules/ippool
including configuration file /etc/raddb/modules/detail
including configuration file /etc/raddb/modules/acct_unique
including configuration file /etc/raddb/modules/expr
including configuration file /etc/raddb/modules/digest
including configuration file /etc/raddb/modules/chap
including configuration file /etc/raddb/modules/realm
including configuration file /etc/raddb/modules/policy
including configuration file /etc/raddb/modules/always
including configuration file /etc/raddb/modules/attr_filter
including configuration file /etc/raddb/modules/sql_log
including configuration file /etc/raddb/modules/detail.example.com
including configuration file /etc/raddb/modules/detail.log
including configuration file /etc/raddb/modules/mac2ip
including configuration file /etc/raddb/modules/files
including configuration file /etc/raddb/modules/echo
including configuration file /etc/raddb/modules/mschap
including configuration file /etc/raddb/modules/inner-eap
including configuration file /etc/raddb/modules/passwd
including configuration file /etc/raddb/modules/counter
including configuration file /etc/raddb/modules/sradutmp
including configuration file /etc/raddb/modules/attr_rewrite
including configuration file /etc/raddb/modules/linelog
including configuration file /etc/raddb/modules/checkval
including configuration file /etc/raddb/modules/smbpasswd
including configuration file /etc/raddb/modules/radutmp
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
}
}
client localhost {
ipaddr = 127.0.0.1
require_message_authenticator = no
secret = "testing123"
nastype = "other"
}
client MR_SWITCHEROONIE {
require_message_authenticator = no
secret = "SUPER_SEKRAT_KEYZ"
nastype = "cisco"
}
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
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
}
home_server_pool my_auth_failover {
type = fail-over
home_server = localhost
}
realm example.com {
auth_pool = my_auth_failover
}
realm LOCAL {
}
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 = yes
ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key --domain=%{mschap:NT-Domain} --username=%{mschap:User-Name} --challenge=%{mschap:Challenge:-00} --nt-response=%{mschap:NT-Response:-00}"
}
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 = "peap"
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 = "/dev/urandom"
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"
}
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 {
Module: Checking authenticate {...} for more modules to load
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
}
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.
rad_recv: Access-Request packet from host *.*.*.* port 1645, id=2, length=102
User-Name = "windoze_luser"
User-Password = "super sekrat passwordz"
NAS-Port = 1
NAS-Port-Id = "tty1"
NAS-Port-Type = Virtual
Calling-Station-Id = "*.*.*.*"
NAS-IP-Address = *.*.*.*
+- entering group authorize {...}
++[preprocess] returns ok
++[chap] returns noop
++[mschap] returns noop
[suffix] No '@' in User-Name = "windoze_luser", 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] users: Matched entry DEFAULT at line 210
++[files] 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 = Local
WARNING: Please update your configuration, and remove 'Auth-Type = Local'
WARNING: Use the PAP or CHAP modules instead.
No "known good" password was configured for the user.
As a result, we cannot authenticate the user.
Failed to authenticate the user.
Using Post-Auth-Type Reject
+- entering group REJECT {...}
[attr_filter.access_reject] expand: %{User-Name} -> windoze_luser
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 2 to 192.168.0.200 port 1645
Waking up in 4.9 seconds.
Cleaning up request 0 ID 2 with timestamp +9
Ready to process requests.
It appears that the mschap is returning noop and not even attempting to
authenticate the user, here's what I have done so far...
no changes to radiusd.conf (I have read several times that if I touch
this file I get smacked like a red headed step child)
changes made to /modules/mschap
mschap {
#use_mppe = no
#require_encryption = yes
#require_strong = yes
with_ntdomain_hack = yes
ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key
--domain=%{mschap:NT-Domain}
--username=%{mschap:User-Name}
--challenge=%{mschap:Challenge:-00}
--nt-response=%{mschap:NT-Response:-00}"
not really any changes to /sites-enabled/default I've tried adding
ntlm_auth to the authenticate section but it doesn't seem to like
that...here's the output from that.
Module: Checking authenticate {...} for more modules to load
/etc/raddb/sites-enabled/default[260]: Failed to find module
"ntlm_auth".
/etc/raddb/sites-enabled/default[227]: Errors parsing authenticate
section.
}
Errors initializing modules
I have read the "how to" on deployingradius.com however, this "how to"
appears to be written for a much older version of freeradius since many
of the attributes mentioned are no longer contained in radiusd.conf,
I've also looked at the freeradius wiki without much luck.
I think I have everything configured correctly EXCEPT for freeradius
utilizing the module for ntlm_auth.
Thanks for any help!
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