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Freeradius How to integrate Active Directory [AD Integration WindowsXP NTLM Tutorial]
by charles schwartz 23 Nov '05

23 Nov '05

Hi list, A lot of people on this list would like to integrate Active Directory with FreeRADIUS in order to provide a transparent user authentication login process. There are at least 2 ways to integrate AD: LDAP and NTLM. I've written a tutorial about how to do this with NTLM (winbind, ntlm_auth). The Windows supplicants are configured to work with PEAP and MSCHAPv2. You can download it from here: http://homepages.lu/charlesschwartz/radius/freeRadius_AD_tutorial.pdf Good luck! Regards, Charles Schwartz

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ntlm_auth problem
by Andrew Dixon 22 Nov '05

22 Nov '05

Hi All. I have setup up a VPN server using FC4 and Poptop using freeradius for authication via a Windows DC. As far as I can see everything is setup correctly, however it fails to authicate any users when a login attempt is made. It is logging the following error message in the radius.log file: Tue Nov 22 22:01:47 2005 : Error: Exec-Program: FAILED to execute /usr/bin/ntlm_auth: Permission denied I have checked the permissions on this file and everyone has permission to execute it and if I execute it manually from the command prompt I can authicate users without issue. Anyone have any ideas what the problem could be. Thanks in advanced. Andrew.

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Password Expiry policy
by Alhagie Puye 22 Nov '05

22 Nov '05

Hello all, I was wondering if anyone has implemented the feature of password expiry with Freeradius used for authenticating Cisco VPN clients. I have a Cisco PIX firewall using Freeradius as a backend (/etc/passwd). Anyway help would be greatly appreciated. Thanks in advance, Alhagie Puye - Network Engineer Datawave Group of Companies (604)295-1817 This message (including any attachments) is confidential, may be privileged and is only intended for the person to whom it is addressed. If you have received it by mistake please notify the sender by return e-mail and delete this message from your system. Any unauthorized use or dissemination of this message in whole or in part is strictly prohibited. E-mail communications are inherently vulnerable to interception by unauthorized parties and are susceptible to change. We will use alternate communication means upon request.

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Freeradius + Mysql + Dialup Admin
by Mohammad K. Flaifel 22 Nov '05

22 Nov '05

Hi all, I have configured freeradius over RedHat AS4, mysql and dialup admin. I'm still now in testing phase. When testing an account with ntradping utility I get the following log on radius.log: Tue Nov 22 18:02:26 2005 : Error: rlm_sql: Failed to create the pair: Unknown value Local for attribute Auth-Type Tue Nov 22 18:02:26 2005 : Error: rlm_sql (sql): Error getting data from database Tue Nov 22 18:02:26 2005 : Auth: Login OK: [test/123] (from client flaifel port 0) On ntradping I get access accept and I can see the attributes, but is there any error in the log ?? or its normal ? Regards, Flaifel

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freeradius SIGSEGV, Segmentation fault.
by Norbert Wegener 22 Nov '05

22 Nov '05

I want to do machine authentication against an AD and grabbed the latest version from cvs this morning. I configured and ran it, but during establishing the connection, freeradius segfaults. The last lines are: rlm_eap_tls: Received EAP-TLS ACK message rlm_eap_tls: ack handshake is finished eaptls_verify returned 3 eaptls_process returned 3 rlm_eap: Freeing handler modcall[authenticate]: module "eap" returns ok for request 7 modcall: leaving group authenticate (returns ok) for request 7 Sending Access-Accept of id 107 to 111.222.36.124 port 1645 MS-MPPE-Recv-Key = 0x6b1b534ccd84a4f094b930849e651c507bf054567863aa80992384accc184dfc Segmentation fault The complete run under gdb can be found at http://www.wegener-net.de/fr/, where bt.txt contains the ouput of gdb (not too much). Additionaly I have put the config files there. Norbert Wegener

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Access-challenge & attributes
by MINODIER David RD-RESA-LAN 22 Nov '05

22 Nov '05

Hi all, I'm using EAP-MD5 to authenticate a user. Freeradius eventually returns an access-accept packet, the user is authenticated, no pb. However, i have this question: Is it "normal" that the attributes contained in the access-accept packet are also contained in the Access-Challenge packets sent by Freeradius ? Is there a way to force Freeradius to return the attributes associated to the user in the access-accept packet only ? Many thanks. David

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tool for testing machine authentication
by Norbert Wegener 22 Nov '05

22 Nov '05

Does a tool exist, that lets me test machine account authentication against an AD? Something like an equivalent to radtest? Thanks Norbert Wegener

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email the daily logfile ?
by Frank Bonnet 22 Nov '05

22 Nov '05

Hello before writing a script myself I would like to know if there is an option in freeradius to send by email the logfile generated in /var/log/freeradius/radacct/127.0.0.1/detail-YYYYMMDD ? Thank you -- Frank Bonnet

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wireless+freeradius+AD
by Laker Netman 22 Nov '05

22 Nov '05

Hi all. I have been running freeradius for quite a while now to authenticate dial-up users through our Cisco 3660. Additionally, I configured several of our internal devices for AAA. This has all worked quite well and I have been using a MySQL backend. Now I am getting ready to deploy a wireless network in our facility and need to lock it down. My idea is to have our users authenticate and authorize against our active directory. Then, to provide access to guests, just create a bogus wireless user that doesn't exist in the AD, so radius falls back to a different auth method (sql) to let the user at least get on and get an address from our dhcp. I basically have this model working through regular telnet and PPP right now, less the wireless piece. I have successfully set up authentication to AD, but I have some questions and concerns. I have done quite a bit of research on this and read the pertinent files in the /doc folder included with the FR software. So, I hope my questions make sense. First: We do not allow anonymous binding to our AD LDAP. So, for testing to date, I have used "Administrator" and the associated password in the config file. Obviously this is less than ideal :) What is the best or better alternative? Allowing anonymous bind? Creating a bind-only "user" for auth purposes? Am I correct that the NAS passes the username and password to FR in cleartext? Is there any method to send/receive the password between FR and AD encrypted? If I want to use WPA with TKIP (or preferably AES) do I *have* to have a supplicant? Most hosts will be XP, though there is a slim chance I may have to deal with others. Lastly, as I mentioned earlier, I have googles, read, googled, read, a *lot* of info. Is there a CONCISE site anywhere on the web the defines everything needed without leaving out the *one* critical piece that actually makes it work? ;-) Thanks in advance, Laker __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com

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help needed for debugging segfault
by Luca Corti 22 Nov '05

22 Nov '05

Hello, I've been banging my head against this for a few days. I've installed freeradius 1.1.0 from cvs and I'm doing EAP-PEAP using ntlm_auth for authentication. freeradius segfaults while sending the access-accept packet. In my first post someone instructed me to enable coredumps in freeradius and post the result. I've compiled freeradius using --enable-developer, set allow_core_dumps = yes in radiusd.conf and used ulimit to remove coredump filesize limit from my shell, but it seems freeradius still doesn't dump core. The radius server is a Debian testing box. The Wi-Fi accesspoint is a D-Link DWL-2100AP. Is there anything else I can do? Is this a freeradius issue or an OS issue? thanks -- Luca Corti PGP Key ID 1F38C091 BOFH excuse of the moment: Sand fleas eating the Internet cables -- Luca Corti PGP Key ID 1F38C091 BOFH excuse of the moment: LBNC (luser brain not connected)

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