Free Radius Server For Windows
Hedgeworth Hennigan
FreeRADIUS is the most widely used RADIUS server in the world. It powers most major Internet Service Providers and Telecommunications companies world-wide and is one of the key technologies behind eduroam, the international Wi-Fi education roaming service. It is the RADIUS server used by all Cloud Identity providers and is embedded in products from network equipment vendors and token card manufacturers.
The FreeRADIUS product suite includes a server, radius client, development libraries, and numerous additional RADIUS and IP address-related utilities. It is fundamental to the working of the Internet around the world, and is responsible for authenticating hundreds of millions of users every day.
The FreeRADIUS project maintains the following components: a multi protocol policy server (radiusd) that implements RADIUS, DHCP, BFD, and ARP; a BSD licensed RADIUS client library; a RADIUS PAM library; and an Apache RADIUS module.
We provide a step-by-step guide to radiusd -X. The guide breaks down the different pieces of the debug output, and explains what they mean. Often you can just look for ERROR or WARNING to solve many problems.
We are currently having two physical servers. One radius server is currently configured on one of the VM (hyperv 2012) on first physical server running of win 2012 R2 . The same radius server has certificate authority installed . They are used for WiFi authentication by users across the network.
I did made the script and run it . The configurations have been copied across. Its not authenticating the client. Can we test it with changing in one access point (give the second server IP) and try to connect from that one. or is it you can have only NPS active as a master .Or should disable the other radius server .
Since version 7.0 authentication against our microsoft NPS radius servers is broken. Because the firewall now always first tries CHAP instead op PAP (see this article) and microsoft NPS always replies with a ACCESS-REJECT massage (see this article -> item 9).
NPS logs give an error (19): No reversibly encrypted password is stored for the user account. This means you should enable reversible encryption on you domain controllers with the policy setting "Store password using reversible encryption for all users in the domain" which is not something we can do.
The whole CHAP implementation in 7.0 is pretty silly. The failover only works half the time for the inital logins, it causes massive issues with Multi Factor Authentication solutions using RADIUS Challenge/Response, there's no tickbox to turn it off and completely baffling that CHAP, instead of MS-CHAPv2 is supported..
Added a new CLI operational command ( set authentication radius-auth-type ) to address an incompatibility issue between PAN-OS and some RADIUS servers. With this fix, you can manually override the automatic selection mechanism introduced with Challenge-Handshake Authentication Protocol (CHAP) support in PAN-OS 7.0 to select either CHAP or Password Authentication Protocol (PAP) as needed.
I am running bigip 11.4.1 on a 3900 that is licensed for LTM and ASM with client authentication.I am able to configure user authentication to a Windows NPS radius server and have all external users all get authenticated to the windows radius and authorized to the same default external user role. (This is purely for user login access to the BIG-IP managment interface via a browser).
I would now like to create four new Windows user groups: F5-Admin, F5-resource-admin, F5-operator, F5-guest.The goal is to have the Windows NPS radius server return the F5 vendor specific attribute "F5-LTM-User-Role" with the appropriate values for the four roles I need.
I have the document: " -us/solutions/public/14000/300/sol14324.html".It is not clear to me how to add the role attributes to windows 2008 NPS such that the new role attribute will be returned to the F5 after successful authentication.It is also not clear how to configure the F5 to then take the returned role attribute for the user and over-ride (ignore) the default external role setting.
We have a working Windows 2012R2 NPS server running our wireless network at the moment and I want to add the juniper devices to it. EX4200 and EX2200 mostly. I have the following config changes successfully setup:
set system authentication-order [ radius password ]
set system radius-server 10.10.10.1 secret "XXXXXXXXXXxxxxxxxxXXXXXXXXXXX"
set system radius-server 10.10.10.1 timeout 3
set system radius-server 10.10.10.1 retry 3
set system radius-server 10.10.10.1 source-address 10.3.0.1
set system radius-options password-protocol mschap-v2
set system services ssh
set system login user SU class super-user
set system login user SU full-name "Default RADUIS admin access template"
set system login user OP class operator
set system login user OP full-name "Default RADUIS operater access template"
set system login user RO class read-only
set system login user RO full-name "Default RADUIS read-only access template"
Logs in the Radius server show full-access with successful login. PIng tests between all is good and no firewall/filters anywhere in this setup. We checked and triple checked the vendor code in the Radius setup. No joy.
Basically, from what I can tell at this point, everything is working but the switch is waiting for 'something' from the Windows Server and not getting it. Or not understanding it. Does anyone have a working Windows 2012R2 setup? I would like to compare the setup if possible.
I tried to add a firewall rule on the Windows Server, but I am not having much luck. It might be a Sunday afternoon thing. The Radius server is port 1812. I would be very grateful if someone could provide me with the detailed information I need to create this rule. Of course, it would be really nice if the Authpoint Gateway Installer (msi) did this for me during the installation process.
Yep.. I tried to make an Incoming rule. My logic was that the Radius server (the Firebox 192.168.40.1) was using port 1812 to chat to the Authpoint Gateway running on the Windows server. So I set the local port to 1812 with action "allow" across all three profiles (Domain, Private and Public).. No luck.. Then I reversed it to set the remote port as 1812 - still fizzed out. Then I tried the program (radius.exe)..
First, few words on setup and more details are shown within attached photos.
I'm running Windows Server 2016 with AD and NPS roles. There are users and a group of users created for Radius purposes, network policy is added to grant an access for the group of users and according to Radius server logs, there are no issue there, users are granted access upon request from WLC (photo attached), hence I'm not focused on troubleshooting Radius server setup, considering that part of setup is OK.
Cisco WLC, model 9800-L-F-K9, version 17.3.5b.
There are 116 APs and in general, we have no issues with our WiFi network(s).
Recently, Radius server has been added, AAA authentication created for login type and web authentication parameter configured.
Web policy enabled for the Visitor WLAN and it's all working just fine, smooth. Once users connect to Visitor WiFi, there is a pop-up window requesting credentials and if correct credentials (AD user) are entered, WiFi is ON, working.
Issue I'm having is following.
If users leave their device inactive for some time, or even if they lock their device (any device, iPhone, Android, Microsoft workstation, etc.), device disconnects from WiFi and as soon as user is about to use a device again, authentication pop-up window appears. This is very annoying since users are requested to login dozens of times a day and I had to disable web policy on the Visitor WiFi until I find a solution. If web policy is disabled, WiFi is working fine, no issues.
I've attached a photo where my device was authenticated 4 times in 10 minutes. There are no other WLC logs rather than those ones on the attached photo.
I was focused on session and idle timeout settings for Visitor WiFi, but regardless what settings I configure, there are no changes in devices behavior. I've checked WLC logs and Radius logs, and I can't find a reason for device disconnecting, there's nothing there which would point to the reason of device being re-authenticated to connect to WiFi with Radius web policy enabled.
I had WLC output analyzed, and there are no errors, certain number of warnings only, where none relate explains this behavior.
CSCvs73917 bug I've found earlier and I've changed a value to 1 day, but unfortunately this doesn't fix my issue.
I've tried that one, no progress.
Upgrading WLC from 17.3.5b to 17.3.6 and finally to 17.6.04, gave no results. I've tried everything I could find online, "playing" with different setting on WLC, but I just can't get this to work.
While checking different settings and setup, I've noticed this detail on the AP setup.
I can't find a way to configure this (my guess is, this has to be configured on the WLC). There is no option in WLC web GUI to configure Session timeout. All options I've found are within Policy settings affecting WLAN session timeout or idle timeout, which I've set to max value, but AP session timeout is showing value 300 and I can't find where I can change this setting.
Also, I'm not sure if this session timeout is related to APs' session with WLC or clients' session with AP...
How can I check client debugs and radius packet captures to see what's happening?
Since devices lose WiFi connection after random interval (sometimes 30 seconds, sometimes 132s, etc), it's definitely not a timer setting but something else. And I might be wrong, but I'm excluding Radius settings as a possible cause since authentication is going smooth, no timeouts are set on Radius server (NPS) and all logs I can find on Radius are only showing successful user login.
Thank you,
Kind regards.
Petar