FreeRadius mschap v2 challange repeating without checking password

13 Jun 2024

      Hi All,

I am trying to anable MS Chap v2 auth from Radius in PHP with FreeRadius standalone without active Directory to test if the integration works.
The challenges keeps getting sent, irrespective if password is right or wrong. Logging is also not happening when doing a MSChapv2 auth. Logging is happening when doing ms-chap-v1, pap , chap-md5.

Tried clear password, MD5 and NT password and MS-CHAP-Use-NTLM-Auth with yes and 1.

authorise
bob   Cleartext-Password := "test", MS-CHAP-Use-NTLM-Auth := yes
      Reply-Message := "Hello, %{User-Name}"

bob_md5    MD5-Password:= "****", MS-CHAP-Use-NTLM-Auth := yes
    Reply-Message := "Hello, %{User-Name}"

bob_ntp    NT-Password:= "****", MS-CHAP-Use-NTLM-Auth := yes
    Reply-Message := "Hello, %{User-Name}"

FreeRadius Server Debug
2024-06-13 21:07:14 DEBUG: Added Attribute 1 (User-Name), format S, value bob_ntp
2024-06-13 21:07:14 DEBUG: Added Attribute 79 (EAP-Message), format S, value �
                                                                              bob_ntp
2024-06-13 21:07:14 DEBUG: Added Attribute 80 (Message-Authenticator), format S, value
2024-06-13 21:07:14 DEBUG: Added Attribute 6 (Service-Type), format I, value 1
2024-06-13 21:07:14 DEBUG: Packet type 1 (Access-Request) sent to 172.22.0.10
2024-06-13 21:07:14 DEBUG: Attribute 5 (NAS-Port), length (4), format I, value 20
2024-06-13 21:07:14 DEBUG: Attribute 1 (User-Name), length (7), format S, value bob_ntp
2024-06-13 21:07:14 DEBUG: Attribute 79 (EAP-Message), length (12), format S, value �
                                                                                     bob_ntp
2024-06-13 21:07:14 DEBUG: Attribute 80 (Message-Authenticator), length (16), format S, value
2024-06-13 21:07:14 DEBUG: Attribute 6 (Service-Type), length (4), format I, value 1
2024-06-13 21:07:14 DEBUG: Packet type 11 (Access-Challenge) received
2024-06-13 21:07:14 DEBUG: Attribute 79 (EAP-Message), length 6, format S, value �
2024-06-13 21:07:14 DEBUG: Attribute 80 (Message-Authenticator), length 16, format S, value ��G�a2���~~0�
2024-06-13 21:07:14 DEBUG: Attribute 24 (State), length 16, format S, value �b����[���X.
2024-06-13 21:07:14 DEBUG: Added Attribute 1 (User-Name), format S, value bob_ntp
2024-06-13 21:07:14 DEBUG: Added Attribute 79 (EAP-Message), format S, value �
2024-06-13 21:07:14 DEBUG: Added Attribute 80 (Message-Authenticator), format S, value
2024-06-13 21:07:14 DEBUG: Added Attribute 24 (State), format S, value �b����[���X.
2024-06-13 21:07:14 DEBUG: Packet type 1 (Access-Request) sent to 172.22.0.10
2024-06-13 21:07:14 DEBUG: Attribute 5 (NAS-Port), length (4), format I, value 20
2024-06-13 21:07:14 DEBUG: Attribute 1 (User-Name), length (7), format S, value bob_ntp
2024-06-13 21:07:14 DEBUG: Attribute 79 (EAP-Message), length (6), format S, value �
2024-06-13 21:07:14 DEBUG: Attribute 80 (Message-Authenticator), length (16), format S, value
2024-06-13 21:07:14 DEBUG: Attribute 24 (State), length (16), format S, value �b����[���X.
2024-06-13 21:07:14 DEBUG: Packet type 11 (Access-Challenge) received
2024-06-13 21:07:14 DEBUG: Attribute 18 (Reply-Message), length 14, format T, value Hello, bob_ntp
2024-06-13 21:07:14 DEBUG: Attribute 79 (EAP-Message), length 36, format S, value �$��V�vu�J�-z�a���FreeRADIUS
2024-06-13 21:07:14 DEBUG: Attribute 80 (Message-Authenticator), length 16, format S, value |�;Z鿽�c2*�8�
2024-06-13 21:07:14 DEBUG: Attribute 24 (State), length 16, format S, value �b����[���X.

freeradius -XC
FreeRADIUS Version 3.2.3
Copyright (C) 1999-2022 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
For more information about these matters, see the file named COPYRIGHT
Starting - reading configuration files ...
including dictionary file /usr/share/freeradius/dictionary
including dictionary file /usr/share/freeradius/dictionary.dhcp
including dictionary file /usr/share/freeradius/dictionary.vqp
including dictionary file /etc/freeradius/dictionary
including configuration file /etc/freeradius/radiusd.conf
including configuration file /etc/freeradius/proxy.conf
including configuration file /etc/freeradius/clients.conf
including files in directory /etc/freeradius/mods-enabled/
including configuration file /etc/freeradius/mods-enabled/mschap
including configuration file /etc/freeradius/mods-enabled/preprocess
including configuration file /etc/freeradius/mods-enabled/soh
including configuration file /etc/freeradius/mods-enabled/unpack
including configuration file /etc/freeradius/mods-enabled/date
including configuration file /etc/freeradius/mods-enabled/passwd
including configuration file /etc/freeradius/mods-enabled/expr
including configuration file /etc/freeradius/mods-enabled/chap
including configuration file /etc/freeradius/mods-enabled/exec
including configuration file /etc/freeradius/mods-enabled/expiration
including configuration file /etc/freeradius/mods-enabled/digest
including configuration file /etc/freeradius/mods-enabled/always
including configuration file /etc/freeradius/mods-enabled/detail
including configuration file /etc/freeradius/mods-enabled/radutmp
including configuration file /etc/freeradius/mods-enabled/unix
including configuration file /etc/freeradius/mods-enabled/linelog
including configuration file /etc/freeradius/mods-enabled/pap
including configuration file /etc/freeradius/mods-enabled/replicate
including configuration file /etc/freeradius/mods-enabled/files
including configuration file /etc/freeradius/mods-enabled/dynamic_clients
including configuration file /etc/freeradius/mods-enabled/detail.log
including configuration file /etc/freeradius/mods-enabled/logintime
including configuration file /etc/freeradius/mods-enabled/ntlm_auth
including configuration file /etc/freeradius/mods-enabled/sradutmp
including configuration file /etc/freeradius/mods-enabled/totp
including configuration file /etc/freeradius/mods-enabled/echo
including configuration file /etc/freeradius/mods-enabled/utf8
including configuration file /etc/freeradius/mods-enabled/attr_filter
including configuration file /etc/freeradius/mods-enabled/eap
including configuration file /etc/freeradius/mods-enabled/realm
including files in directory /etc/freeradius/policy.d/
including configuration file /etc/freeradius/policy.d/operator-name
including configuration file /etc/freeradius/policy.d/canonicalization
including configuration file /etc/freeradius/policy.d/cui
including configuration file /etc/freeradius/policy.d/debug
including configuration file /etc/freeradius/policy.d/control
including configuration file /etc/freeradius/policy.d/filter
including configuration file /etc/freeradius/policy.d/moonshot-targeted-ids
including configuration file /etc/freeradius/policy.d/rfc7542
including configuration file /etc/freeradius/policy.d/dhcp
including configuration file /etc/freeradius/policy.d/abfab-tr
including configuration file /etc/freeradius/policy.d/eap
including configuration file /etc/freeradius/policy.d/accounting
including files in directory /etc/freeradius/sites-enabled/
including configuration file /etc/freeradius/sites-enabled/inner-tunnel
including configuration file /etc/freeradius/sites-enabled/default
main {
 security {
        user = "freerad"
        group = "freerad"
        allow_core_dumps = no
 }
        name = "freeradius"
        prefix = "/usr"
        localstatedir = "/var"
        logdir = "/var/log/freeradius"
        run_dir = "/var/run/freeradius"
}
main {
        name = "freeradius"
        prefix = "/usr"
        localstatedir = "/var"
        sbindir = "/usr/sbin"
        logdir = "/var/log/freeradius"
        run_dir = "/var/run/freeradius"
        libdir = "/usr/lib/freeradius"
        radacctdir = "/var/log/freeradius/radacct"
        hostname_lookups = no
        max_request_time = 30
        cleanup_delay = 5
        max_requests = 16384
        postauth_client_lost = yes
        pidfile = "/var/run/freeradius/freeradius.pid"
        checkrad = "/usr/sbin/checkrad"
        debug_level = 0
        proxy_requests = yes
 log {
        stripped_names = no
        auth = yes
        auth_accept = yes
        auth_reject = yes
        auth_badpass = yes
        auth_goodpass = yes
        msg_badpass = "Password Rejected"
        msg_goodpass = "Password Accepted"
        colourise = yes
        msg_denied = "You are already logged in - access denied"
 }
 resources {
 }
 security {
        max_attributes = 200
        reject_delay = 1.000000
        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 {
        nonblock = no
        ipaddr = 127.0.0.1
        port = 1812
        type = "auth"
        secret = <<< secret >>>
        response_window = 20.000000
        response_timeouts = 1
        max_outstanding = 65536
        zombie_period = 40
        status_check = "status-server"
        ping_interval = 30
        check_interval = 30
        check_timeout = 4
        num_answers_to_alive = 3
        revive_interval = 120
  limit {
        max_connections = 16
        max_requests = 0
        lifetime = 0
        idle_timeout = 0
  }
  coa {
        irt = 2
        mrt = 16
        mrc = 5
        mrd = 30
  }
  recv_coa {
  }
 }
 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 = yes
        secret = <<< secret >>>
        shortname = "localhost"
        nas_type = "other"
        proto = "*"
  limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
  }
 }
 client localhost_ipv6 {
        ipv6addr = ::1
        require_message_authenticator = no
        secret = <<< secret >>>
  limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
  }
 }
 client sitelocal_ipv6 {
        ipv6addr = fe80::/16
        require_message_authenticator = no
        secret = <<< secret >>>
  limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
  }
 }
 client dockernet {
        ipaddr = 172.22.0.0/16
        require_message_authenticator = no
        secret = <<< secret >>>
  limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
  }
 }
Debug state unknown (cap_sys_ptrace capability not set)
 # Creating Auth-Type = mschap
 # Creating Auth-Type = eap
 # Creating Auth-Type = PAP
 # Creating Auth-Type = CHAP
 # Creating Auth-Type = MS-CHAP
 # Creating Auth-Type = digest
 # Creating Autz-Type = New-TLS-Connection
radiusd: #### Instantiating modules ####
 modules {
  # Loaded module rlm_mschap
  # Loading module "mschap" from file /etc/freeradius/mods-enabled/mschap
  mschap {
        use_mppe = yes
        require_encryption = yes
        require_strong = no
        with_ntdomain_hack = yes
        ntlm_auth = "/path/to/ntlm_auth --request-nt-key --allow-mschapv2 --username=%{%{Stripped-User-Name}:-%{%{User-Name}:-None}} --challenge=%{%{mschap:Challenge}:-00} --nt-response=%{%{mschap:NT-Response}:-00}"
   passchange {
   }
        allow_retry = yes
        retry_msg = "Re-enter (or reset) the password"
        winbind_retry_with_normalised_username = no
  }
  # Loaded module rlm_preprocess
  # Loading module "preprocess" from file /etc/freeradius/mods-enabled/preprocess
  preprocess {
        huntgroups = "/etc/freeradius/mods-config/preprocess/huntgroups"
        hints = "/etc/freeradius/mods-config/preprocess/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
  }
  # Loaded module rlm_soh
  # Loading module "soh" from file /etc/freeradius/mods-enabled/soh
  soh {
        dhcp = yes
  }
  # Loaded module rlm_unpack
  # Loading module "unpack" from file /etc/freeradius/mods-enabled/unpack
  # Loaded module rlm_date
  # Loading module "date" from file /etc/freeradius/mods-enabled/date
  date {
        format = "%b %e %Y %H:%M:%S %Z"
        utc = no
  }
  # Loading module "wispr2date" from file /etc/freeradius/mods-enabled/date
  date wispr2date {
        format = "%Y-%m-%dT%H:%M:%S"
        utc = no
  }
  # Loaded module rlm_passwd
  # Loading module "etc_passwd" from file /etc/freeradius/mods-enabled/passwd
  passwd etc_passwd {
        filename = "/etc/passwd"
        format = "*User-Name:Crypt-Password:"
        delimiter = ":"
        ignore_nislike = no
        ignore_empty = yes
        allow_multiple_keys = no
        hash_size = 100
  }
  # Loaded module rlm_expr
  # Loading module "expr" from file /etc/freeradius/mods-enabled/expr
  expr {
        safe_characters = "@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /äéöüàâæçèéêëîïôœùûüaÿÄÉÖÜßÀÂÆÇÈÉÊËÎÏÔŒÙÛÜŸ"
  }
  # Loaded module rlm_chap
  # Loading module "chap" from file /etc/freeradius/mods-enabled/chap
  # Loaded module rlm_exec
  # Loading module "exec" from file /etc/freeradius/mods-enabled/exec
  exec {
        wait = no
        input_pairs = "request"
        shell_escape = yes
        timeout = 10
  }
  # Loaded module rlm_expiration
  # Loading module "expiration" from file /etc/freeradius/mods-enabled/expiration
  # Loaded module rlm_digest
  # Loading module "digest" from file /etc/freeradius/mods-enabled/digest
  # Loaded module rlm_always
  # Loading module "reject" from file /etc/freeradius/mods-enabled/always
  always reject {
        rcode = "reject"
        simulcount = 0
        mpp = no
  }
  # Loading module "fail" from file /etc/freeradius/mods-enabled/always
  always fail {
        rcode = "fail"
        simulcount = 0
        mpp = no
  }
  # Loading module "ok" from file /etc/freeradius/mods-enabled/always
  always ok {
        rcode = "ok"
        simulcount = 0
        mpp = no
  }
  # Loading module "handled" from file /etc/freeradius/mods-enabled/always
  always handled {
        rcode = "handled"
        simulcount = 0
        mpp = no
  }
  # Loading module "invalid" from file /etc/freeradius/mods-enabled/always
  always invalid {
        rcode = "invalid"
        simulcount = 0
        mpp = no
  }
  # Loading module "userlock" from file /etc/freeradius/mods-enabled/always
  always userlock {
        rcode = "userlock"
        simulcount = 0
        mpp = no
  }
  # Loading module "notfound" from file /etc/freeradius/mods-enabled/always
  always notfound {
        rcode = "notfound"
        simulcount = 0
        mpp = no
  }
  # Loading module "noop" from file /etc/freeradius/mods-enabled/always
  always noop {
        rcode = "noop"
        simulcount = 0
        mpp = no
  }
  # Loading module "updated" from file /etc/freeradius/mods-enabled/always
  always updated {
        rcode = "updated"
        simulcount = 0
        mpp = no
  }
  # Loaded module rlm_detail
  # Loading module "detail" from file /etc/freeradius/mods-enabled/detail
  detail {
        filename = "/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/detail-%Y%m%d"
        header = "%t"
        permissions = 384
        locking = no
        escape_filenames = no
        log_packet_header = no
  }
  # Loaded module rlm_radutmp
  # Loading module "radutmp" from file /etc/freeradius/mods-enabled/radutmp
  radutmp {
        filename = "/var/log/freeradius/radutmp"
        username = "%{User-Name}"
        case_sensitive = yes
        check_with_nas = yes
        permissions = 384
        caller_id = yes
  }
  # Loaded module rlm_unix
  # Loading module "unix" from file /etc/freeradius/mods-enabled/unix
  unix {
        radwtmp = "/var/log/freeradius/radwtmp"
  }
Creating attribute Unix-Group
  # Loaded module rlm_linelog
  # Loading module "linelog" from file /etc/freeradius/mods-enabled/linelog
  linelog {
        filename = "/var/log/freeradius/linelog"
        escape_filenames = no
        syslog_severity = "info"
        permissions = 384
        format = "This is a log message for %{User-Name}"
        reference = "messages.%{%{reply:Packet-Type}:-default}"
  }
  # Loading module "log_accounting" from file /etc/freeradius/mods-enabled/linelog
  linelog log_accounting {
        filename = "/var/log/freeradius/linelog-accounting"
        escape_filenames = no
        syslog_severity = "info"
        permissions = 384
        format = ""
        reference = "Accounting-Request.%{%{Acct-Status-Type}:-unknown}"
  }
  # Loaded module rlm_pap
  # Loading module "pap" from file /etc/freeradius/mods-enabled/pap
  pap {
        normalise = yes
  }
  # Loaded module rlm_replicate
  # Loading module "replicate" from file /etc/freeradius/mods-enabled/replicate
  # Loaded module rlm_files
  # Loading module "files" from file /etc/freeradius/mods-enabled/files
  files {
        filename = "/etc/freeradius/mods-config/files/authorize"
        acctusersfile = "/etc/freeradius/mods-config/files/accounting"
        preproxy_usersfile = "/etc/freeradius/mods-config/files/pre-proxy"
  }
  # Loaded module rlm_dynamic_clients
  # Loading module "dynamic_clients" from file /etc/freeradius/mods-enabled/dynamic_clients
  # Loading module "auth_log" from file /etc/freeradius/mods-enabled/detail.log
  detail auth_log {
        filename = "/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/auth-detail-%Y%m%d"
        header = "%t"
        permissions = 384
        locking = no
        escape_filenames = no
        log_packet_header = no
  }
  # Loading module "reply_log" from file /etc/freeradius/mods-enabled/detail.log
  detail reply_log {
        filename = "/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/reply-detail-%Y%m%d"
        header = "%t"
        permissions = 384
        locking = no
        escape_filenames = no
        log_packet_header = no
  }
  # Loading module "pre_proxy_log" from file /etc/freeradius/mods-enabled/detail.log
  detail pre_proxy_log {
        filename = "/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/pre-proxy-detail-%Y%m%d"
        header = "%t"
        permissions = 384
        locking = no
        escape_filenames = no
        log_packet_header = no
  }
  # Loading module "post_proxy_log" from file /etc/freeradius/mods-enabled/detail.log
  detail post_proxy_log {
        filename = "/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/post-proxy-detail-%Y%m%d"
        header = "%t"
        permissions = 384
        locking = no
        escape_filenames = no
        log_packet_header = no
  }
  # Loaded module rlm_logintime
  # Loading module "logintime" from file /etc/freeradius/mods-enabled/logintime
  logintime {
        minimum_timeout = 60
  }
  # Loading module "ntlm_auth" from file /etc/freeradius/mods-enabled/ntlm_auth
  exec ntlm_auth {
        wait = yes
        program = "/path/to/ntlm_auth --request-nt-key --domain=MYDOMAIN --username=%{mschap:User-Name} --password=%{User-Password}"
        shell_escape = yes
  }
  # Loading module "sradutmp" from file /etc/freeradius/mods-enabled/sradutmp
  radutmp sradutmp {
        filename = "/var/log/freeradius/sradutmp"
        username = "%{User-Name}"
        case_sensitive = yes
        check_with_nas = yes
        permissions = 420
        caller_id = no
  }
  # Loaded module rlm_totp
  # Loading module "totp" from file /etc/freeradius/mods-enabled/totp
  # Loading module "echo" from file /etc/freeradius/mods-enabled/echo
  exec echo {
        wait = yes
        program = "/bin/echo %{User-Name}"
        input_pairs = "request"
        output_pairs = "reply"
        shell_escape = yes
  }
  # Loaded module rlm_utf8
  # Loading module "utf8" from file /etc/freeradius/mods-enabled/utf8
  # Loaded module rlm_attr_filter
  # Loading module "attr_filter.post-proxy" from file /etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.post-proxy {
        filename = "/etc/freeradius/mods-config/attr_filter/post-proxy"
        key = "%{Realm}"
        relaxed = no
  }
  # Loading module "attr_filter.pre-proxy" from file /etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.pre-proxy {
        filename = "/etc/freeradius/mods-config/attr_filter/pre-proxy"
        key = "%{Realm}"
        relaxed = no
  }
  # Loading module "attr_filter.access_reject" from file /etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.access_reject {
        filename = "/etc/freeradius/mods-config/attr_filter/access_reject"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loading module "attr_filter.access_challenge" from file /etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.access_challenge {
        filename = "/etc/freeradius/mods-config/attr_filter/access_challenge"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loading module "attr_filter.accounting_response" from file /etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.accounting_response {
        filename = "/etc/freeradius/mods-config/attr_filter/accounting_response"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loading module "attr_filter.coa" from file /etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.coa {
        filename = "/etc/freeradius/mods-config/attr_filter/coa"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loaded module rlm_eap
  # Loading module "eap" from file /etc/freeradius/mods-enabled/eap
  eap {
        default_eap_type = "peap"
        timer_expire = 60
        max_eap_type = 52
        ignore_unknown_eap_types = no
        cisco_accounting_username_bug = no
        max_sessions = 16384
  }
  # Loaded module rlm_realm
  # Loading module "IPASS" from file /etc/freeradius/mods-enabled/realm
  realm IPASS {
        format = "prefix"
        delimiter = "/"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "suffix" from file /etc/freeradius/mods-enabled/realm
  realm suffix {
        format = "suffix"
        delimiter = "@"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "bangpath" from file /etc/freeradius/mods-enabled/realm
  realm bangpath {
        format = "prefix"
        delimiter = "!"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "realmpercent" from file /etc/freeradius/mods-enabled/realm
  realm realmpercent {
        format = "suffix"
        delimiter = "%"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "ntdomain" from file /etc/freeradius/mods-enabled/realm
  realm ntdomain {
        format = "prefix"
        delimiter = "\\"
        ignore_default = no
        ignore_null = no
  }
  instantiate {
  }
  # Instantiating module "mschap" from file /etc/freeradius/mods-enabled/mschap
rlm_mschap (mschap): authenticating by calling 'ntlm_auth'
  # Instantiating module "preprocess" from file /etc/freeradius/mods-enabled/preprocess
reading pairlist file /etc/freeradius/mods-config/preprocess/huntgroups
reading pairlist file /etc/freeradius/mods-config/preprocess/hints
  # Instantiating module "etc_passwd" from file /etc/freeradius/mods-enabled/passwd
rlm_passwd: nfields: 3 keyfield 0(User-Name) listable: no
  # Instantiating module "expiration" from file /etc/freeradius/mods-enabled/expiration
  # Instantiating module "reject" from file /etc/freeradius/mods-enabled/always
  # Instantiating module "fail" from file /etc/freeradius/mods-enabled/always
  # Instantiating module "ok" from file /etc/freeradius/mods-enabled/always
  # Instantiating module "handled" from file /etc/freeradius/mods-enabled/always
  # Instantiating module "invalid" from file /etc/freeradius/mods-enabled/always
  # Instantiating module "userlock" from file /etc/freeradius/mods-enabled/always
  # Instantiating module "notfound" from file /etc/freeradius/mods-enabled/always
  # Instantiating module "noop" from file /etc/freeradius/mods-enabled/always
  # Instantiating module "updated" from file /etc/freeradius/mods-enabled/always
  # Instantiating module "detail" from file /etc/freeradius/mods-enabled/detail
  # Instantiating module "linelog" from file /etc/freeradius/mods-enabled/linelog
  # Instantiating module "log_accounting" from file /etc/freeradius/mods-enabled/linelog
  # Instantiating module "pap" from file /etc/freeradius/mods-enabled/pap
  # Instantiating module "files" from file /etc/freeradius/mods-enabled/files
reading pairlist file /etc/freeradius/mods-config/files/authorize
reading pairlist file /etc/freeradius/mods-config/files/accounting
reading pairlist file /etc/freeradius/mods-config/files/pre-proxy
  # Instantiating module "auth_log" from file /etc/freeradius/mods-enabled/detail.log
rlm_detail (auth_log): 'User-Password' suppressed, will not appear in detail output
  # Instantiating module "reply_log" from file /etc/freeradius/mods-enabled/detail.log
  # Instantiating module "pre_proxy_log" from file /etc/freeradius/mods-enabled/detail.log
  # Instantiating module "post_proxy_log" from file /etc/freeradius/mods-enabled/detail.log
  # Instantiating module "logintime" from file /etc/freeradius/mods-enabled/logintime
  # Instantiating module "attr_filter.post-proxy" from file /etc/freeradius/mods-enabled/attr_filter
reading pairlist file /etc/freeradius/mods-config/attr_filter/post-proxy
  # Instantiating module "attr_filter.pre-proxy" from file /etc/freeradius/mods-enabled/attr_filter
reading pairlist file /etc/freeradius/mods-config/attr_filter/pre-proxy
  # Instantiating module "attr_filter.access_reject" from file /etc/freeradius/mods-enabled/attr_filter
reading pairlist file /etc/freeradius/mods-config/attr_filter/access_reject
  # Instantiating module "attr_filter.access_challenge" from file /etc/freeradius/mods-enabled/attr_filter
reading pairlist file /etc/freeradius/mods-config/attr_filter/access_challenge
  # Instantiating module "attr_filter.accounting_response" from file /etc/freeradius/mods-enabled/attr_filter
reading pairlist file /etc/freeradius/mods-config/attr_filter/accounting_response
  # Instantiating module "attr_filter.coa" from file /etc/freeradius/mods-enabled/attr_filter
reading pairlist file /etc/freeradius/mods-config/attr_filter/coa
  # Instantiating module "eap" from file /etc/freeradius/mods-enabled/eap
   # Linked to sub-module rlm_eap_md5
   # Linked to sub-module rlm_eap_gtc
   gtc {
        challenge = "Password: "
        auth_type = "PAP"
   }
   # Linked to sub-module rlm_eap_tls
   tls {
        tls = "tls-common"
   }
   tls-config tls-common {
        verify_depth = 0
        ca_path = "/etc/freeradius/certs"
        pem_file_type = yes
        private_key_file = "/etc/freeradius/certs/server.pem"
        certificate_file = "/etc/freeradius/certs/server.pem"
        ca_file = "/etc/freeradius/certs/ca.pem"
        private_key_password = <<< secret >>>
        fragment_size = 1024
        include_length = yes
        auto_chain = yes
        check_crl = no
        check_all_crl = no
        ca_path_reload_interval = 0
        cipher_list = "DEFAULT"
        cipher_server_preference = no
        reject_unknown_intermediate_ca = no
        ecdh_curve = ""
        tls_max_version = "1.2"
        tls_min_version = "1.2"
    cache {
        enable = no
        lifetime = 24
        max_entries = 255
    }
    verify {
        skip_if_ocsp_ok = no
    }
    ocsp {
        enable = no
        override_cert_url = yes
        url = "http://127.0.0.1/ocsp/"
        use_nonce = yes
        timeout = 0
        softfail = no
    }
   }
   # Linked to sub-module rlm_eap_ttls
   ttls {
        tls = "tls-common"
        default_eap_type = "md5"
        copy_request_to_tunnel = yes
        use_tunneled_reply = yes
        virtual_server = "inner-tunnel"
        include_length = yes
        require_client_cert = no
   }
tls: Using cached TLS configuration from previous invocation
   # Linked to sub-module rlm_eap_peap
   peap {
        tls = "tls-common"
        default_eap_type = "mschapv2"
        copy_request_to_tunnel = yes
        use_tunneled_reply = yes
        proxy_tunneled_request_as_eap = yes
        virtual_server = "inner-tunnel"
        soh = no
        require_client_cert = no
   }
tls: Using cached TLS configuration from previous invocation
   # Linked to sub-module rlm_eap_mschapv2
   mschapv2 {
        with_ntdomain_hack = no
        send_error = no
        identity = "FreeRADIUS"
   }
  # Instantiating module "IPASS" from file /etc/freeradius/mods-enabled/realm
  # Instantiating module "suffix" from file /etc/freeradius/mods-enabled/realm
  # Instantiating module "bangpath" from file /etc/freeradius/mods-enabled/realm
  # Instantiating module "realmpercent" from file /etc/freeradius/mods-enabled/realm
  # Instantiating module "ntdomain" from file /etc/freeradius/mods-enabled/realm
 } # modules
radiusd: #### Loading Virtual Servers ####
server { # from file /etc/freeradius/radiusd.conf
} # server
server inner-tunnel { # from file /etc/freeradius/sites-enabled/inner-tunnel
 # Loading authenticate {...}
Compiling Auth-Type PAP for attr Auth-Type
Compiling Auth-Type CHAP for attr Auth-Type
Compiling Auth-Type MS-CHAP for attr Auth-Type
 # Loading authorize {...}
 # Loading session {...}
 # Loading pre-proxy {...}
 # Loading post-proxy {...}
 # Loading post-auth {...}
Ignoring "sql" (see raddb/mods-available/README.rst)
 # Skipping contents of 'if' as it is always 'false' -- /etc/freeradius/sites-enabled/inner-tunnel:366
Compiling Post-Auth-Type REJECT for attr Post-Auth-Type
} # server inner-tunnel
server default { # from file /etc/freeradius/sites-enabled/default
 # Loading authenticate {...}
Compiling Auth-Type PAP for attr Auth-Type
Compiling Auth-Type CHAP for attr Auth-Type
Compiling Auth-Type MS-CHAP for attr Auth-Type
 # Loading authorize {...}
Ignoring "ldap" (see raddb/mods-available/README.rst)
Compiling Autz-Type New-TLS-Connection for attr Autz-Type
 # Loading preacct {...}
 # Loading accounting {...}
 # Loading post-proxy {...}
 # Loading post-auth {...}
Compiling Post-Auth-Type REJECT for attr Post-Auth-Type
Compiling Post-Auth-Type Challenge for attr Post-Auth-Type
Compiling Post-Auth-Type Client-Lost for attr Post-Auth-Type
} # server default
radiusd: #### Skipping IP addresses and Ports ####
listen {
        type = "auth"
        ipaddr = 127.0.0.1
        port = 18120
}
listen {
        type = "auth"
        ipaddr = *
        port = 1812
   limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
   }
}
listen {
        type = "acct"
        ipaddr = *
        port = 0
   limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
   }
}
listen {
        type = "auth"
        ipv6addr = ::
        port = 0
   limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
   }
}
listen {
        type = "acct"
        ipv6addr = ::
        port = 0
   limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
   }
}
Configuration appears to be OK

FreeRadius mschap v2 challange repeating without checking password

Jaco du Preez