Thanks to Kenneth for the quickly answer.

I restart all system (reboot).
Freeradius start at the boot and works:
# ps aux |grep freeradius
freerad   2784  0.0  0.9  49644  2344 ?        Ssl  May06   0:00 /usr/sbin/freeradius
Just hotspot's user connect :
# ps aux |grep freeradius
freerad   2784  0.0  1.1  49744  3004 ?        Ssl  May06   0:00 /usr/sbin/freeradius
freerad   4536  0.0  0.0      0     0 ?        Z    10:36   0:00 [freeradius] <defunct>
Why born a zombie process?
Which configuration file should I check?

I try new version of freeradius, but I was not able to make it works!!
So, I prefer to keep this version.

Pls help me.
Tks a lot

Il 04/05/2010 17.12, Kenneth Marshall ha scritto: 
On Tue, May 04, 2010 at 04:56:46PM +0200, Tokie wrote:
  
Hi everyone,
I'm using FreeRADIUS Version 1.1.7 with Mysql.
I use for Hotspot system.

All works fine, but after around one day without activity, the radius
server don't answer.
Therefore, if I restart (/etc/init.d/freeradius restart), all works ok!!

I monitor with the command "ps" and just restart result:
# ps ax | grep freeradius
26118 ?        Ssl    0:00 /usr/sbin/freeradius

Immediately after the connection of a hotspot's user:
# ps ax | grep freeradius
26118 ?        Ssl    0:00 /usr/sbin/freeradius
26158 ?        Z      0:00 [freeradius] <defunct>

What does this mean  *_/[freeradius] <defunct>/_*?

If hotspot's user disconnect, nothing changes!!

Could you help me??
    

Retarting the server is the appropriate measure to use to address
this problem. The better solution would be to upgrade to version 2.1.8
which fixes so many bugs...

Cheers,
Ken