Hello Alan, Very thankful for your reply and correct my understanding. (Shown below) I actually did the symlink to dynamic-clients file. This file allows me to indicate the directory where client definitions are stored. I uncommented this -> directory = ${confdir}/dynamic-clients/ <- however this dynamic-clients does not exist, so i did a mkdir dynamic-clients under $confdir (which is raddb). This folder is empty so after i started the radiusd -X -x, I will add a client definition file to this newly created folder (dynamic-clients/). Am I right to do that? Did i miss out any steps? Hope this is clearer. [root@server sites-enabled]# pwd /usr/local/etc/raddb/sites-enabled [root@server sites-enabled]# ls -al total 0 lrwxrwxrwx 1 root root 33 2011-08-22 15:58 control-socket -> ../sites-available/control-socket lrwxrwxrwx 1 root root 26 2011-08-22 15:58 default -> ../sites-available/default lrwxrwxrwx 1 root root 52 2011-08-24 16:27 dynamic-clients -> /usr/local/etc/raddb/sites-available/dynamic-clients lrwxrwxrwx 1 root root 31 2011-08-22 15:58 inner-tunnel -> ../sites-available/inner-tunnel Alex -- View this message in context: http://freeradius.1045715.n5.nabble.com/radmin-del-client-error-tp4725176p47... Sent from the FreeRadius - User mailing list archive at Nabble.com.