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Failed binding to authentication address * port 1812 as server freeradius: Address already in use

Freeradius Error binding to port for 0.0.0.0 port 1812Assigning, or binding, a Redhat user to use specific VLAN idUsing hashed passwords from openLDAP for authentication in Mikrotik hotspot with intermediate step as FreeRADIUSvsFTPd with Freeradius authenticationFreeRadius SQL authorization and perl authentication

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}

0

When I type the following command on my Ubuntu 16.04: sudo freeradius -X
I've got the message:

Failed binding to authentication address * port 1812 as server eduroam: Address already in use

I've read previous topics related to that issue and their problem were that freeradius service had been running already. But in my case it's true. Here is output of the command: sudo ps aux | grep freeradius:

tnur      1349  0.0  0.0  12948   932 pts/0    S+   09:44   0:00 grep --color=auto freeradius

There is no running freeradius service!
What could be the problem in my case?

freeradius

share|improve this question

edited Aug 16 '17 at 4:28

garethTheRed

25.3k36485

asked Aug 16 '17 at 3:47

tnurtnur

11

bumped to the homepage by Community♦ 36 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Try sudo lsof -i tcp:1812. That should tell you what process is listening on that port.
  
  – garethTheRed
  Aug 16 '17 at 4:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ps ax | grep radiusd
  
  – yw_in_k
  Aug 16 '17 at 4:43
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  netstat -nalp | fgrep 1812 (as root) should also tell you what uses port 1812. Since it's a high port, it could be in use by anything (could also be allocated as an ephemeral client port).
  
  – András Korn
  Aug 16 '17 at 6:43
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I did both commands - nothing!
  
  – tnur
  Aug 16 '17 at 14:42
  

  
  
  
  

add a comment | 

0

When I type the following command on my Ubuntu 16.04: sudo freeradius -X
I've got the message:

Failed binding to authentication address * port 1812 as server eduroam: Address already in use

I've read previous topics related to that issue and their problem were that freeradius service had been running already. But in my case it's true. Here is output of the command: sudo ps aux | grep freeradius:

tnur      1349  0.0  0.0  12948   932 pts/0    S+   09:44   0:00 grep --color=auto freeradius

There is no running freeradius service!
What could be the problem in my case?

freeradius

share|improve this question

edited Aug 16 '17 at 4:28

garethTheRed

25.3k36485

asked Aug 16 '17 at 3:47

tnurtnur

11

bumped to the homepage by Community♦ 36 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Try sudo lsof -i tcp:1812. That should tell you what process is listening on that port.
  
  – garethTheRed
  Aug 16 '17 at 4:32
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  ps ax | grep radiusd
  
  – yw_in_k
  Aug 16 '17 at 4:43
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  netstat -nalp | fgrep 1812 (as root) should also tell you what uses port 1812. Since it's a high port, it could be in use by anything (could also be allocated as an ephemeral client port).
  
  – András Korn
  Aug 16 '17 at 6:43
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I did both commands - nothing!
  
  – tnur
  Aug 16 '17 at 14:42
  

  
  
  
  

add a comment | 

When I type the following command on my Ubuntu 16.04: sudo freeradius -X
I've got the message:

Failed binding to authentication address * port 1812 as server eduroam: Address already in use

I've read previous topics related to that issue and their problem were that freeradius service had been running already. But in my case it's true. Here is output of the command: sudo ps aux | grep freeradius:

tnur      1349  0.0  0.0  12948   932 pts/0    S+   09:44   0:00 grep --color=auto freeradius

There is no running freeradius service!
What could be the problem in my case?

freeradius

share|improve this question

edited Aug 16 '17 at 4:28

garethTheRed

25.3k36485

asked Aug 16 '17 at 3:47

tnurtnur

11

Failed binding to authentication address * port 1812 as server eduroam: Address already in use

tnur      1349  0.0  0.0  12948   932 pts/0    S+   09:44   0:00 grep --color=auto freeradius

share|improve this question

edited Aug 16 '17 at 4:28

garethTheRed

25.3k36485

asked Aug 16 '17 at 3:47

tnurtnur

11

share|improve this question

edited Aug 16 '17 at 4:28

garethTheRed

25.3k36485

asked Aug 16 '17 at 3:47

tnurtnur

11

edited Aug 16 '17 at 4:28

garethTheRed

25.3k36485

edited Aug 16 '17 at 4:28

garethTheRed

25.3k36485

asked Aug 16 '17 at 3:47

tnurtnur

11

asked Aug 16 '17 at 3:47

tnurtnur

11

1 Answer
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0

You've probably got two listen sections bound to the same port. Remove all symlinks from freeradius/sites-enabled and add them back one by one until you find the conflicting listener.

My guess is you changed the inner-tunnel virtual server to listen on port 1812. Don't do that, the listener in this virtual server is only so you can send test packets. In normal operations requests are proxied to that virtual internally.

share|improve this answer

answered Aug 18 '17 at 20:59

Arran Cudbard-BellArran Cudbard-Bell

18617

add a comment | 

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0

You've probably got two listen sections bound to the same port. Remove all symlinks from freeradius/sites-enabled and add them back one by one until you find the conflicting listener.

My guess is you changed the inner-tunnel virtual server to listen on port 1812. Don't do that, the listener in this virtual server is only so you can send test packets. In normal operations requests are proxied to that virtual internally.

share|improve this answer

answered Aug 18 '17 at 20:59

Arran Cudbard-BellArran Cudbard-Bell

18617

add a comment | 

0

You've probably got two listen sections bound to the same port. Remove all symlinks from freeradius/sites-enabled and add them back one by one until you find the conflicting listener.

My guess is you changed the inner-tunnel virtual server to listen on port 1812. Don't do that, the listener in this virtual server is only so you can send test packets. In normal operations requests are proxied to that virtual internally.

share|improve this answer

answered Aug 18 '17 at 20:59

Arran Cudbard-BellArran Cudbard-Bell

18617

add a comment | 

You've probably got two listen sections bound to the same port. Remove all symlinks from freeradius/sites-enabled and add them back one by one until you find the conflicting listener.

My guess is you changed the inner-tunnel virtual server to listen on port 1812. Don't do that, the listener in this virtual server is only so you can send test packets. In normal operations requests are proxied to that virtual internally.

share|improve this answer

answered Aug 18 '17 at 20:59

Arran Cudbard-BellArran Cudbard-Bell

18617

share|improve this answer

answered Aug 18 '17 at 20:59

Arran Cudbard-BellArran Cudbard-Bell

18617

answered Aug 18 '17 at 20:59

Arran Cudbard-BellArran Cudbard-Bell

18617

answered Aug 18 '17 at 20:59

Arran Cudbard-BellArran Cudbard-Bell

18617