title: FreeRadius - Failed binding to authentication address
body: <p>When I run the following command, I can get successfull result.</p>
  
  <p>root@ubuntu:/home/can# radtest user password 127.0.0.1 1812 testing123</p>
  
  <p>Sending Access-Request of id 78 to 127.0.0.1 port 1812</p>
  
  <pre><code>User-Name = "user"
  User-Password = "password"
  NAS-IP-Address = 127.0.1.1
  NAS-Port = 1812
  Message-Authenticator = 0x00000000000000000000000000000000
  </code></pre>
  
  <p>rad_recv: Access-Accept packet from host 127.0.0.1 port 1812, id=78, length=20</p>
  
  <hr>
  
  <p>However When I run the "freeradius -X" , I get error message as following :</p>
  
  <p>.....</p>
  
  <p>Failed binding to authentication address * port 1812: Address already in use 
  /etc/freeradius/radiusd.conf[250]: Error binding to port for 0.0.0.0 port 1812</p>
  
  <p>Please Help Me </p>
  
  <p>Thank you for your efforts.</p>
  
  <p>Can </p>