Thanks, but "modifyAttribute 32:/AAAAAAAAAA/BBBBBBB\ BBB/" isn´t actually working...
 
 
systemctl status radsecproxy.service
● radsecproxy.service - radsecproxy
   Loaded: loaded (/lib/systemd/system/radsecproxy.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Di 2017-03-07 18:16:45 CET; 53s ago
     Docs: man:radsecproxy(1)
  Process: 23569 ExecStart=/usr/sbin/radsecproxy -i /run/radsecproxy.pid (code=exited, status=1/FAILURE)
 Main PID: 23445 (code=killed, signal=TERM)
systemd[1]: Starting radsecproxy...
radsecproxy[23569]: configuration error in block rewrite modattrib, line starting with modifyAttribute
radsecproxy[23569]: configuration error
systemd[1]: radsecproxy.service: Control process exited, code=exited status=1
systemd[1]: Failed to start radsecproxy.
systemd[1]: radsecproxy.service: Unit entered failed state.
systemd[1]: radsecproxy.service: Failed with result 'exit-code'.