Freeradius 总是拒绝访问请求

Question

我正在尝试在 Raspberry-Pi B 上设置与 WLAN 接入点连接的 FreeRadius-Server。 我创建了证书，就像在自述文件中描述的那样。当我尝试在接入点上登录时，我从服务器获得以下调试输出。

 ... adding new socket proxy address * port 60940
    Listening on authentication address * port 1812
    Listening on accounting address * port 1813
    Listening on authentication address 127.0.0.1 port 18120 as server inner-tunnel
    Listening on proxy address * port 1814
    Ready to process requests.
    rad_recv: Access-Request packet from host 192.168.155.44 port 3072, id=239, length=174
        User-Name = "14cc20-1a6f73"
        User-Password = "\312G'\275\3138\034\036\020\t\022ZE\243\376N"
        NAS-Identifier = "Access-Point"
        NAS-IP-Address = 192.168.155.44
        Called-Station-Id = "EC-E5-55-FF-D2-B8:Access-Point"
        NAS-Port-Type = Wireless-802.11
        Service-Type = Framed-User
        NAS-Port = 1
        NAS-Port-Id = "1"
        Calling-Station-Id = "14-CC-20-1A-6F-73"
        Connect-Info = "CONNECT 150 Mbps 802.11g/n"
    # Executing section authorize from file /etc/freeradius/sites-enabled/default
    +- entering group authorize {...}
    ++[preprocess] returns ok
    ++[chap] returns noop
    ++[mschap] returns noop
    ++[digest] returns noop
    [suffix] No '@' in User-Name = "14cc20-1a6f73", looking up realm NULL
    [suffix] No such realm "NULL"
    ++[suffix] returns noop
    [eap] No EAP-Message, not doing EAP
    ++[eap] returns noop
    ++[files] returns noop
    ++[expiration] returns noop
    ++[logintime] returns noop
    [pap] WARNING! No "known good" password found for the user.  Authentication may fail because of this.
    ++[pap] returns noop
    ERROR: No authenticate method (Auth-Type) found for the request: Rejecting the user
    Failed to authenticate the user.
      WARNING: Unprintable characters in the password.  Double-check the shared secret on the server and the NAS!
    Using Post-Auth-Type Reject
    # Executing group from file /etc/freeradius/sites-enabled/default
    +- entering group REJECT {...}
    [attr_filter.access_reject]     expand: %{User-Name} -> 14cc20-1a6f73
    attr_filter: Matched entry DEFAULT at line 11
    ++[attr_filter.access_reject] returns updated
    Delaying reject of request 0 for 1 seconds
    Going to the next request

我将用户写入用户文件

ExampleUser Cleartext-Password := "PASSWORD"

困扰我的是用户密码和用户名似乎以加密格式发送到服务器，这可能是它不起作用的原因，但我不知道是什么原因造成的。 我正在尝试在 Xubuntu 上使用 PEAP V0 MSCHAPv2 通过 WPA/WPA2 Enterprise 登录，这应该可以工作。如果我选择动态 WEP (802.1x)，Radius-Server 甚至不会收到请求（我正在使用 tshark 监控流量）。

Answer 1

用户名不是从服务器以加密格式发送的，用户密码是。 FreeRADIUS 无法检查解密是否成功，因此您唯一知道的方法是解密后的密码是否与用户密码匹配。

一个很好的提示是，如果密码中包含大量不可打印的字符，就像上面那样，那么很可能是 RADIUS 服务器和 NAS 之间的密码不正确。

如果你解决了这个问题，你应该会在调试输出中看到实际的密码，然后你就可以让服务器发送一个接受。