Simultaneous-Use restriction not working with radutmp

13 Dec 2018

      Hi,

I have been using freeradius inside pfsense for a while, but there has
been an issue with the Simultaneous-Use option since an update about 1
year ago. I now also setup freeradius on an external server just to
verify this behavior, and I noticed the same issues.

I want to use radutmp for Simultaneous-Use restriction. I have
accounting packages enabled, and the file gets created inside
/var/log/radius and filled with data related to user names.

I have the option set in my users file:
"test" Cleartext-Password := "1234", Simultaneous-Use := "1"

Before the issue appeared this used to work fine, but now it seems to
have absolutely no effect. The username "test" appears two times in the
radutmp file, yet none of the users is ever disconnected.

log snippet:

(2) pap: User authenticated successfully
(2)     [pap] = ok
(2)   } # Auth-Type PAP = ok
(2) # Executing section session from file /etc/raddb/sites-enabled/default
(2)   session {
(2) radutmp: EXPAND /var/log/radius/radutmp
(2) radutmp:    --> /var/log/radius/radutmp
(2)     [radutmp] = ok
(2)   } # session = ok
(2) # Executing section post-auth from file /etc/raddb/sites-enabled/default
(2)   post-auth {
(2)     update {
(2)       No attributes updated
(2)     } # update = noop

the [radutmp] module always returns ok

The only suggestion on how to solve this has been to use the sql variant
(which is why the sql modules appear in log below) but I would prefer
getting this to work as it did originally.

Any help would be appreciated.
Kind Regards,

Felix

radiusd -X output:

FreeRADIUS Version 3.0.13
Copyright (C) 1999-2017 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/raddb/dictionary
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/mods-enabled/
including configuration file /etc/raddb/mods-enabled/digest
including configuration file /etc/raddb/mods-enabled/unix
including configuration file /etc/raddb/mods-enabled/detail.log
including configuration file /etc/raddb/mods-enabled/mschap
including configuration file /etc/raddb/mods-enabled/attr_filter
including configuration file /etc/raddb/mods-enabled/passwd
including configuration file /etc/raddb/mods-enabled/sradutmp
including configuration file /etc/raddb/mods-enabled/exec
including configuration file /etc/raddb/mods-enabled/date
including configuration file /etc/raddb/mods-enabled/unpack
including configuration file /etc/raddb/mods-enabled/expr
including configuration file /etc/raddb/mods-enabled/dhcp
including configuration file /etc/raddb/mods-enabled/chap
including configuration file /etc/raddb/mods-enabled/utf8
including configuration file /etc/raddb/mods-enabled/replicate
including configuration file /etc/raddb/mods-enabled/linelog
including configuration file /etc/raddb/mods-enabled/logintime
including configuration file /etc/raddb/mods-enabled/ntlm_auth
including configuration file /etc/raddb/mods-enabled/expiration
including configuration file /etc/raddb/mods-enabled/cache_eap
including configuration file /etc/raddb/mods-enabled/always
including configuration file /etc/raddb/mods-enabled/dynamic_clients
including configuration file /etc/raddb/mods-enabled/pap
including configuration file /etc/raddb/mods-enabled/sql
including configuration file
/etc/raddb/mods-config/sql/main/mysql/queries.conf
including configuration file /etc/raddb/mods-enabled/preprocess
including configuration file /etc/raddb/mods-enabled/realm
including configuration file /etc/raddb/mods-enabled/radutmp
including configuration file /etc/raddb/mods-enabled/echo
including configuration file /etc/raddb/mods-enabled/files
including configuration file /etc/raddb/mods-enabled/detail
including configuration file /etc/raddb/mods-enabled/eap
including configuration file /etc/raddb/mods-enabled/soh
including files in directory /etc/raddb/policy.d/
including configuration file /etc/raddb/policy.d/control
including configuration file /etc/raddb/policy.d/operator-name
including configuration file /etc/raddb/policy.d/accounting
including configuration file /etc/raddb/policy.d/dhcp
including configuration file /etc/raddb/policy.d/canonicalization
including configuration file /etc/raddb/policy.d/debug
including configuration file /etc/raddb/policy.d/cui
including configuration file /etc/raddb/policy.d/filter
including configuration file /etc/raddb/policy.d/eap
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
main {
 security {
        user = "radiusd"
        group = "radiusd"
        allow_core_dumps = no
 }
        name = "radiusd"
        prefix = "/usr"
        localstatedir = "/var"
        logdir = "/var/log/radius"
        run_dir = "/var/run/radiusd"
}
main {
        name = "radiusd"
        prefix = "/usr"
        localstatedir = "/var"
        sbindir = "/usr/sbin"
        logdir = "/var/log/radius"
        run_dir = "/var/run/radiusd"
        libdir = "/usr/lib64/freeradius"
        radacctdir = "/var/log/radius/radacct"
        hostname_lookups = no
        max_request_time = 30
        cleanup_delay = 5
        max_requests = 16384
        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
        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 {
        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
  }
 }
 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 = <<< secret >>>
        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 poppel {
        ipaddr = 176.199.151.164
        require_message_authenticator = no
        secret = <<< secret >>>
        nas_type = "other"
        proto = "*"
  limit {
        max_connections = 16
        lifetime = 0
        idle_timeout = 30
  }
 }
Debugger not attached
 # 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 = Status-Server
 # Creating Acct-Type = Status-Server
radiusd: #### Instantiating modules ####
 modules {
  # Loaded module rlm_digest
  # Loading module "digest" from file /etc/raddb/mods-enabled/digest
  # Loaded module rlm_unix
  # Loading module "unix" from file /etc/raddb/mods-enabled/unix
  unix {
        radwtmp = "/var/log/radius/radwtmp"
  }
Creating attribute Unix-Group
  # Loaded module rlm_detail
  # Loading module "auth_log" from file /etc/raddb/mods-enabled/detail.log
  detail auth_log {
        filename =
"/var/log/radius/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/raddb/mods-enabled/detail.log
  detail reply_log {
        filename =
"/var/log/radius/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/raddb/mods-enabled/detail.log
  detail pre_proxy_log {
        filename =
"/var/log/radius/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/raddb/mods-enabled/detail.log
  detail post_proxy_log {
        filename =
"/var/log/radius/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_mschap
  # Loading module "mschap" from file /etc/raddb/mods-enabled/mschap
  mschap {
        use_mppe = yes
        require_encryption = no
        require_strong = no
        with_ntdomain_hack = yes
   passchange {
   }
        allow_retry = yes
        winbind_retry_with_normalised_username = no
  }
  # Loaded module rlm_attr_filter
  # Loading module "attr_filter.post-proxy" from file
/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.post-proxy {
        filename = "/etc/raddb/mods-config/attr_filter/post-proxy"
        key = "%{Realm}"
        relaxed = no
  }
  # Loading module "attr_filter.pre-proxy" from file
/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.pre-proxy {
        filename = "/etc/raddb/mods-config/attr_filter/pre-proxy"
        key = "%{Realm}"
        relaxed = no
  }
  # Loading module "attr_filter.access_reject" from file
/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.access_reject {
        filename = "/etc/raddb/mods-config/attr_filter/access_reject"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loading module "attr_filter.access_challenge" from file
/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.access_challenge {
        filename = "/etc/raddb/mods-config/attr_filter/access_challenge"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loading module "attr_filter.accounting_response" from file
/etc/raddb/mods-enabled/attr_filter
  attr_filter attr_filter.accounting_response {
        filename = "/etc/raddb/mods-config/attr_filter/accounting_response"
        key = "%{User-Name}"
        relaxed = no
  }
  # Loaded module rlm_passwd
  # Loading module "etc_passwd" from file /etc/raddb/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_radutmp
  # Loading module "sradutmp" from file /etc/raddb/mods-enabled/sradutmp
  radutmp sradutmp {
        filename = "/var/log/radius/sradutmp"
        username = "%{User-Name}"
        case_sensitive = yes
        check_with_nas = yes
        permissions = 420
        caller_id = no
  }
  # Loaded module rlm_exec
  # Loading module "exec" from file /etc/raddb/mods-enabled/exec
  exec {
        wait = no
        input_pairs = "request"
        shell_escape = yes
        timeout = 10
  }
  # Loaded module rlm_date
  # Loading module "date" from file /etc/raddb/mods-enabled/date
  date {
        format = "%b %e %Y %H:%M:%S %Z"
  }
  # Loaded module rlm_unpack
  # Loading module "unpack" from file /etc/raddb/mods-enabled/unpack
  # Loaded module rlm_expr
  # Loading module "expr" from file /etc/raddb/mods-enabled/expr
  expr {
        safe_characters =
"@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_:
/äéöüàâæçèéêëîïôœùûüaÿÄÉÖÜßÀÂÆÇÈÉÊËÎÏÔŒÙÛÜŸ"
  }
  # Loaded module rlm_dhcp
  # Loading module "dhcp" from file /etc/raddb/mods-enabled/dhcp
  # Loaded module rlm_chap
  # Loading module "chap" from file /etc/raddb/mods-enabled/chap
  # Loaded module rlm_utf8
  # Loading module "utf8" from file /etc/raddb/mods-enabled/utf8
  # Loaded module rlm_replicate
  # Loading module "replicate" from file /etc/raddb/mods-enabled/replicate
  # Loaded module rlm_linelog
  # Loading module "linelog" from file /etc/raddb/mods-enabled/linelog
  linelog {
        filename = "/var/log/radius/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/raddb/mods-enabled/linelog
  linelog log_accounting {
        filename = "/var/log/radius/linelog-accounting"
        escape_filenames = no
        syslog_severity = "info"
        permissions = 384
        format = ""
        reference = "Accounting-Request.%{%{Acct-Status-Type}:-unknown}"
  }
  # Loaded module rlm_logintime
  # Loading module "logintime" from file /etc/raddb/mods-enabled/logintime
  logintime {
        minimum_timeout = 60
  }
  # Loading module "ntlm_auth" from file /etc/raddb/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
  }
  # Loaded module rlm_expiration
  # Loading module "expiration" from file /etc/raddb/mods-enabled/expiration
  # Loaded module rlm_cache
  # Loading module "cache_eap" from file /etc/raddb/mods-enabled/cache_eap
  cache cache_eap {
        driver = "rlm_cache_rbtree"
        key = "%{%{control:State}:-%{%{reply:State}:-%{State}}}"
        ttl = 15
        max_entries = 0
        epoch = 0
        add_stats = no
  }
  # Loaded module rlm_always
  # Loading module "reject" from file /etc/raddb/mods-enabled/always
  always reject {
        rcode = "reject"
        simulcount = 0
        mpp = no
  }
  # Loading module "fail" from file /etc/raddb/mods-enabled/always
  always fail {
        rcode = "fail"
        simulcount = 0
        mpp = no
  }
  # Loading module "ok" from file /etc/raddb/mods-enabled/always
  always ok {
        rcode = "ok"
        simulcount = 0
        mpp = no
  }
  # Loading module "handled" from file /etc/raddb/mods-enabled/always
  always handled {
        rcode = "handled"
        simulcount = 0
        mpp = no
  }
  # Loading module "invalid" from file /etc/raddb/mods-enabled/always
  always invalid {
        rcode = "invalid"
        simulcount = 0
        mpp = no
  }
  # Loading module "userlock" from file /etc/raddb/mods-enabled/always
  always userlock {
        rcode = "userlock"
        simulcount = 0
        mpp = no
  }
  # Loading module "notfound" from file /etc/raddb/mods-enabled/always
  always notfound {
        rcode = "notfound"
        simulcount = 0
        mpp = no
  }
  # Loading module "noop" from file /etc/raddb/mods-enabled/always
  always noop {
        rcode = "noop"
        simulcount = 0
        mpp = no
  }
  # Loading module "updated" from file /etc/raddb/mods-enabled/always
  always updated {
        rcode = "updated"
        simulcount = 0
        mpp = no
  }
  # Loaded module rlm_dynamic_clients
  # Loading module "dynamic_clients" from file
/etc/raddb/mods-enabled/dynamic_clients
  # Loaded module rlm_pap
  # Loading module "pap" from file /etc/raddb/mods-enabled/pap
  pap {
        normalise = yes
  }
  # Loaded module rlm_sql
  # Loading module "sql" from file /etc/raddb/mods-enabled/sql
  sql {
        driver = "rlm_sql_mysql"
        server = "localhost"
        port = 3306
        login = "radius"
        password = <<< secret >>>
        radius_db = "radius"
        read_groups = yes
        read_profiles = yes
        read_clients = yes
        delete_stale_sessions = yes
        sql_user_name = "%{User-Name}"
        default_user_profile = ""
        client_query = "SELECT id, nasname, shortname, type, secret,
server FROM nas"
        authorize_check_query = "SELECT id, username, attribute, value,
op FROM radcheck WHERE username = '%{SQL-User-Name}' ORDER BY id"
        authorize_reply_query = "SELECT id, username, attribute, value,
op FROM radreply WHERE username = '%{SQL-User-Name}' ORDER BY id"
        authorize_group_check_query = "SELECT id, groupname, attribute,
Value, op FROM radgroupcheck WHERE groupname = '%{SQL-Group}' ORDER BY id"
        authorize_group_reply_query = "SELECT id, groupname, attribute,
value, op FROM radgroupreply WHERE groupname = '%{SQL-Group}' ORDER BY id"
        group_membership_query = "SELECT groupname FROM radusergroup
WHERE username = '%{SQL-User-Name}' ORDER BY priority"
        simul_count_query = "SELECT COUNT(*) FROM radacct WHERE username
= '%{SQL-User-Name}' AND acctstoptime IS NULL"
        simul_verify_query = "SELECT radacctid, acctsessionid, username,
nasipaddress, nasportid, framedipaddress, callingstationid,
framedprotocol FROM radacct WHERE username = '%{SQL-User-Name}' AND
acctstoptime IS NULL"
        safe_characters =
"@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /"
   accounting {
        reference = "%{tolower:type.%{Acct-Status-Type}.query}"
    type {
     accounting-on {
        query = "UPDATE radacct SET acctstoptime =
FROM_UNIXTIME(%{integer:Event-Timestamp}), acctsessiontime   =
'%{integer:Event-Timestamp}' - UNIX_TIMESTAMP(acctstarttime),
acctterminatecause = '%{%{Acct-Terminate-Cause}:-NAS-Reboot}' WHERE
acctstoptime IS NULL AND nasipaddress   = '%{NAS-IP-Address}' AND
acctstarttime <= FROM_UNIXTIME(%{integer:Event-Timestamp})"
     }
     accounting-off {
        query = "UPDATE radacct SET acctstoptime =
FROM_UNIXTIME(%{integer:Event-Timestamp}), acctsessiontime   =
'%{integer:Event-Timestamp}' - UNIX_TIMESTAMP(acctstarttime),
acctterminatecause = '%{%{Acct-Terminate-Cause}:-NAS-Reboot}' WHERE
acctstoptime IS NULL AND nasipaddress   = '%{NAS-IP-Address}' AND
acctstarttime <= FROM_UNIXTIME(%{integer:Event-Timestamp})"
     }
     start {
        query = "INSERT INTO radacct (acctsessionid,
acctuniqueid,           username, realm,
nasipaddress,            nasportid, nasporttype,         acctstarttime,
        acctupdatetime, acctstoptime,           acctsessiontime,
acctauthentic, connectinfo_start,       connectinfo_stop,
acctinputoctets, acctoutputoctets,      calledstationid,
callingstationid, acctterminatecause,   servicetype,
framedprotocol, framedipaddress) VALUES ('%{Acct-Session-Id}',
'%{Acct-Unique-Session-Id}', '%{SQL-User-Name}', '%{Realm}',
'%{NAS-IP-Address}', '%{%{NAS-Port-ID}:-%{NAS-Port}}',
'%{NAS-Port-Type}', FROM_UNIXTIME(%{integer:Event-Timestamp}),
FROM_UNIXTIME(%{integer:Event-Timestamp}), NULL, '0',
'%{Acct-Authentic}', '%{Connect-Info}', '', '0', '0',
'%{Called-Station-Id}', '%{Calling-Station-Id}', '', '%{Service-Type}',
'%{Framed-Protocol}', '%{Framed-IP-Address}')"
     }
     interim-update {
        query = "UPDATE radacct SET acctupdatetime  =
(@acctupdatetime_old:=acctupdatetime), acctupdatetime  =
FROM_UNIXTIME(%{integer:Event-Timestamp}), acctinterval    =
%{integer:Event-Timestamp} - UNIX_TIMESTAMP(@acctupdatetime_old),
framedipaddress = '%{Framed-IP-Address}', acctsessiontime =
%{%{Acct-Session-Time}:-NULL}, acctinputoctets =
'%{%{Acct-Input-Gigawords}:-0}' << 32 | '%{%{Acct-Input-Octets}:-0}',
acctoutputoctets = '%{%{Acct-Output-Gigawords}:-0}' << 32 |
'%{%{Acct-Output-Octets}:-0}' WHERE AcctUniqueId =
'%{Acct-Unique-Session-Id}'"
     }
     stop {
        query = "UPDATE radacct SET acctstoptime        =
FROM_UNIXTIME(%{integer:Event-Timestamp}), acctsessiontime    =
%{%{Acct-Session-Time}:-NULL}, acctinputoctets        =
'%{%{Acct-Input-Gigawords}:-0}' << 32 | '%{%{Acct-Input-Octets}:-0}',
acctoutputoctets = '%{%{Acct-Output-Gigawords}:-0}' << 32 |
'%{%{Acct-Output-Octets}:-0}', acctterminatecause =
'%{Acct-Terminate-Cause}', connectinfo_stop = '%{Connect-Info}' WHERE
AcctUniqueId = '%{Acct-Unique-Session-Id}'"
     }
    }
   }
   post-auth {
        reference = ".query"
        query = "INSERT INTO radpostauth (username, pass, reply,
authdate) VALUES ( '%{SQL-User-Name}',
'%{%{User-Password}:-%{Chap-Password}}', '%{reply:Packet-Type}', '%S')"
   }
  }
rlm_sql (sql): Driver rlm_sql_mysql (module rlm_sql_mysql) loaded and linked
Creating attribute SQL-Group
  # Loaded module rlm_preprocess
  # Loading module "preprocess" from file /etc/raddb/mods-enabled/preprocess
  preprocess {
        huntgroups = "/etc/raddb/mods-config/preprocess/huntgroups"
        hints = "/etc/raddb/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_realm
  # Loading module "IPASS" from file /etc/raddb/mods-enabled/realm
  realm IPASS {
        format = "prefix"
        delimiter = "/"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "suffix" from file /etc/raddb/mods-enabled/realm
  realm suffix {
        format = "suffix"
        delimiter = "@"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "realmpercent" from file /etc/raddb/mods-enabled/realm
  realm realmpercent {
        format = "suffix"
        delimiter = "%"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "ntdomain" from file /etc/raddb/mods-enabled/realm
  realm ntdomain {
        format = "prefix"
        delimiter = "\\"
        ignore_default = no
        ignore_null = no
  }
  # Loading module "radutmp" from file /etc/raddb/mods-enabled/radutmp
  radutmp {
        filename = "/var/log/radius/radutmp"
        username = "%{User-Name}"
        case_sensitive = yes
        check_with_nas = yes
        permissions = 384
        caller_id = yes
  }
  # Loading module "echo" from file /etc/raddb/mods-enabled/echo
  exec echo {
        wait = yes
        program = "/bin/echo %{User-Name}"
        input_pairs = "request"
        output_pairs = "reply"
        shell_escape = yes
  }
  # Loaded module rlm_files
  # Loading module "files" from file /etc/raddb/mods-enabled/files
  files {
        filename = "/etc/raddb/mods-config/files/authorize"
        acctusersfile = "/etc/raddb/mods-config/files/accounting"
        preproxy_usersfile = "/etc/raddb/mods-config/files/pre-proxy"
  }
  # Loading module "detail" from file /etc/raddb/mods-enabled/detail
  detail {
        filename =
"/var/log/radius/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_eap
  # Loading module "eap" from file /etc/raddb/mods-enabled/eap
  eap {
        default_eap_type = "md5"
        timer_expire = 60
        ignore_unknown_eap_types = no
        cisco_accounting_username_bug = no
        max_sessions = 16384
  }
  # Loaded module rlm_soh
  # Loading module "soh" from file /etc/raddb/mods-enabled/soh
  soh {
        dhcp = yes
  }
  instantiate {
  }
  # Instantiating module "auth_log" from file
/etc/raddb/mods-enabled/detail.log
rlm_detail (auth_log): 'User-Password' suppressed, will not appear in
detail output
  # Instantiating module "reply_log" from file
/etc/raddb/mods-enabled/detail.log
  # Instantiating module "pre_proxy_log" from file
/etc/raddb/mods-enabled/detail.log
  # Instantiating module "post_proxy_log" from file
/etc/raddb/mods-enabled/detail.log
  # Instantiating module "mschap" from file /etc/raddb/mods-enabled/mschap
rlm_mschap (mschap): using internal authentication
  # Instantiating module "attr_filter.post-proxy" from file
/etc/raddb/mods-enabled/attr_filter
reading pairlist file /etc/raddb/mods-config/attr_filter/post-proxy
  # Instantiating module "attr_filter.pre-proxy" from file
/etc/raddb/mods-enabled/attr_filter
reading pairlist file /etc/raddb/mods-config/attr_filter/pre-proxy
  # Instantiating module "attr_filter.access_reject" from file
/etc/raddb/mods-enabled/attr_filter
reading pairlist file /etc/raddb/mods-config/attr_filter/access_reject
[/etc/raddb/mods-config/attr_filter/access_reject]:11 Check item
"FreeRADIUS-Response-Delay"    found in filter list for realm "DEFAULT".
[/etc/raddb/mods-config/attr_filter/access_reject]:11 Check item
"FreeRADIUS-Response-Delay-USec"       found in filter list for realm
"DEFAULT".
  # Instantiating module "attr_filter.access_challenge" from file
/etc/raddb/mods-enabled/attr_filter
reading pairlist file /etc/raddb/mods-config/attr_filter/access_challenge
  # Instantiating module "attr_filter.accounting_response" from file
/etc/raddb/mods-enabled/attr_filter
reading pairlist file /etc/raddb/mods-config/attr_filter/accounting_response
  # Instantiating module "etc_passwd" from file
/etc/raddb/mods-enabled/passwd
rlm_passwd: nfields: 3 keyfield 0(User-Name) listable: no
  # Instantiating module "linelog" from file /etc/raddb/mods-enabled/linelog
  # Instantiating module "log_accounting" from file
/etc/raddb/mods-enabled/linelog
  # Instantiating module "logintime" from file
/etc/raddb/mods-enabled/logintime
  # Instantiating module "expiration" from file
/etc/raddb/mods-enabled/expiration
  # Instantiating module "cache_eap" from file
/etc/raddb/mods-enabled/cache_eap
rlm_cache (cache_eap): Driver rlm_cache_rbtree (module rlm_cache_rbtree)
loaded and linked
  # Instantiating module "reject" from file /etc/raddb/mods-enabled/always
  # Instantiating module "fail" from file /etc/raddb/mods-enabled/always
  # Instantiating module "ok" from file /etc/raddb/mods-enabled/always
  # Instantiating module "handled" from file /etc/raddb/mods-enabled/always
  # Instantiating module "invalid" from file /etc/raddb/mods-enabled/always
  # Instantiating module "userlock" from file /etc/raddb/mods-enabled/always
  # Instantiating module "notfound" from file /etc/raddb/mods-enabled/always
  # Instantiating module "noop" from file /etc/raddb/mods-enabled/always
  # Instantiating module "updated" from file /etc/raddb/mods-enabled/always
  # Instantiating module "pap" from file /etc/raddb/mods-enabled/pap
  # Instantiating module "sql" from file /etc/raddb/mods-enabled/sql
rlm_sql_mysql: libmysql version: 10.1.37-MariaDB
   mysql {
    tls {
    }
        warnings = "auto"
   }
rlm_sql (sql): Attempting to connect to database "radius"
rlm_sql (sql): Initialising connection pool
   pool {
        start = 5
        min = 3
        max = 32
        spare = 10
        uses = 0
        lifetime = 0
        cleanup_interval = 30
        idle_timeout = 60
        retry_delay = 30
        spread = no
   }
rlm_sql (sql): Opening additional connection (0), 1 of 32 pending slots used
rlm_sql_mysql: Starting connect to MySQL server
rlm_sql_mysql: Connected to database 'radius' on Localhost via UNIX
socket, server version 10.1.37-MariaDB, protocol version 10
rlm_sql (sql): Opening additional connection (1), 1 of 31 pending slots used
rlm_sql_mysql: Starting connect to MySQL server
rlm_sql_mysql: Connected to database 'radius' on Localhost via UNIX
socket, server version 10.1.37-MariaDB, protocol version 10
rlm_sql (sql): Opening additional connection (2), 1 of 30 pending slots used
rlm_sql_mysql: Starting connect to MySQL server
rlm_sql_mysql: Connected to database 'radius' on Localhost via UNIX
socket, server version 10.1.37-MariaDB, protocol version 10
rlm_sql (sql): Opening additional connection (3), 1 of 29 pending slots used
rlm_sql_mysql: Starting connect to MySQL server
rlm_sql_mysql: Connected to database 'radius' on Localhost via UNIX
socket, server version 10.1.37-MariaDB, protocol version 10
rlm_sql (sql): Opening additional connection (4), 1 of 28 pending slots used
rlm_sql_mysql: Starting connect to MySQL server
rlm_sql_mysql: Connected to database 'radius' on Localhost via UNIX
socket, server version 10.1.37-MariaDB, protocol version 10
rlm_sql (sql): Processing generate_sql_clients
rlm_sql (sql) in generate_sql_clients: query is SELECT id, nasname,
shortname, type, secret, server FROM nas
rlm_sql (sql): Reserved connection (0)
rlm_sql (sql): Executing select query: SELECT id, nasname, shortname,
type, secret, server FROM nas
rlm_sql (sql): Released connection (0)
Need 5 more connections to reach 10 spares
rlm_sql (sql): Opening additional connection (5), 1 of 27 pending slots used
rlm_sql_mysql: Starting connect to MySQL server
rlm_sql_mysql: Connected to database 'radius' on Localhost via UNIX
socket, server version 10.1.37-MariaDB, protocol version 10
  # Instantiating module "preprocess" from file
/etc/raddb/mods-enabled/preprocess
reading pairlist file /etc/raddb/mods-config/preprocess/huntgroups
reading pairlist file /etc/raddb/mods-config/preprocess/hints
  # Instantiating module "IPASS" from file /etc/raddb/mods-enabled/realm
  # Instantiating module "suffix" from file /etc/raddb/mods-enabled/realm
  # Instantiating module "realmpercent" from file
/etc/raddb/mods-enabled/realm
  # Instantiating module "ntdomain" from file /etc/raddb/mods-enabled/realm
  # Instantiating module "files" from file /etc/raddb/mods-enabled/files
reading pairlist file /etc/raddb/mods-config/files/authorize
reading pairlist file /etc/raddb/mods-config/files/accounting
reading pairlist file /etc/raddb/mods-config/files/pre-proxy
  # Instantiating module "detail" from file /etc/raddb/mods-enabled/detail
  # Instantiating module "eap" from file /etc/raddb/mods-enabled/eap
   # Linked to sub-module rlm_eap_md5
   # Linked to sub-module rlm_eap_leap
   # 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/raddb/certs"
        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 = <<< secret >>>
        dh_file = "/etc/raddb/certs/dh"
        fragment_size = 1024
        include_length = yes
        auto_chain = yes
        check_crl = no
        check_all_crl = no
        cipher_list = "DEFAULT"
        cipher_server_preference = no
        ecdh_curve = "prime256v1"
    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 = no
        use_tunneled_reply = no
        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 = no
        use_tunneled_reply = no
        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
   }
 } # modules
radiusd: #### Loading Virtual Servers ####
server { # from file /etc/raddb/radiusd.conf
} # server
server inner-tunnel { # from file /etc/raddb/sites-enabled/inner-tunnel
 # Loading authenticate {...}
 # Loading authorize {...}
Ignoring "ldap" (see raddb/mods-available/README.rst)
 # Loading session {...}
 # Loading post-proxy {...}
 # Loading post-auth {...}
 # Skipping contents of 'if' as it is always 'false' --
/etc/raddb/sites-enabled/inner-tunnel:330
} # server inner-tunnel
server default { # from file /etc/raddb/sites-enabled/default
 # Loading authenticate {...}
 # Loading authorize {...}
 # Loading preacct {...}
 # Loading accounting {...}
 # Loading session {...}
 # Loading pre-proxy {...}
 # Loading post-proxy {...}
 # Loading post-auth {...}
} # server default
radiusd: #### Opening IP addresses and Ports ####
listen {
        type = "auth"
        ipaddr = 127.0.0.1
        port = 18120
}
listen {
        type = "auth"
        ipaddr = *
        port = 1812
}
listen {
        type = "acct"
        ipaddr = *
        port = 1813
}
Listening on auth address 127.0.0.1 port 18120 bound to server inner-tunnel
Listening on auth address * port 1812 bound to server default
Listening on acct address * port 1813 bound to server default
Listening on proxy address * port 59359
Ready to process requests

Simultaneous-Use restriction not working with radutmp

Felix Rimkus