communication safe ssh <-> NAS <-> FreeRADIUS ?

François Mehault Francois.Mehault at
Tue May 19 15:19:25 CEST 2009

Oki, thanks. In fact, I want my radius client crypt my passwd in md5 for example, and freeradius check the MD5 hash. So I understand I have to use PAP ?  In my modul ldap I think I have to put « password_attribute = userPassword ». But If I do, I have to put my password in clear in my ldap, otherwise it don't works. Also, I can comment the « password_attribute = userPassword » in my ldap module and put my password in md5/ssha etc... in openldap and it works. But I don't know very well why ??

modules {
 Module: Checking authenticate {...} for more modules to load
 Module: Linked to module rlm_pap
 Module: Instantiating pap
  pap {
        encryption_scheme = "auto"
        auto_header = no
 Module: Linked to module rlm_chap
 Module: Instantiating chap
 Module: Linked to module rlm_mschap
 Module: Instantiating mschap
  mschap {
        use_mppe = yes
        require_encryption = no
        require_strong = no
        with_ntdomain_hack = no
 Module: Linked to module rlm_unix
 Module: Instantiating unix
  unix {
        radwtmp = "/var/log/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 = "/usr/local/etc/raddb/certs/server.pem"
        certificate_file = "/usr/local/etc/raddb/certs/server.pem"
        CA_file = "/usr/local/etc/raddb/certs/ca.pem"
        private_key_password = "whatever"
        dh_file = "/usr/local/etc/raddb/certs/dh"
        random_file = "/usr/local/etc/raddb/certs/random"
        fragment_size = 1024
        include_length = yes
        check_crl = no
        cipher_list = "DEFAULT"
        make_cert_command = "/usr/local/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

De : at [ at] De la part de Nicolas Goutte
Envoyé : mardi 19 mai 2009 14:45
À : FreeRadius users mailing list
Objet : Re: communication safe ssh <-> NAS <-> FreeRADIUS ?

Am 19.05.2009 um 14:14 schrieb François Mehault:


I authenticate on cisco equipments via ssh/telnet. There is no supplicant, so I don't understand in my case and i would like to know if the communication between my cisco equipment and my FreeRadius  safe is. I have a secret shared between both. I understand that the communciation between freeradius and the client radius use the protocol Radius. But in my case there is no PEAP, EAP/TLS ...
Someone can confirm me please if the communication is safe ? because I afraid to see in the file users my password in clear-text. Is it possible to use md5, ssha ... and how ?
For the compatibility, see



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