Hi all, I run Freeradius on a Debian Wheezy (7.2) x86_64 system: <snip> root@srv-vpn:/etc/freeradius# dpkg -l | grep radius ii freeradius 2.1.12+dfsg-1.2 amd64 high-performance and highly configurable RADIUS server ii freeradius-common 2.1.12+dfsg-1.2 all FreeRADIUS common files ii freeradius-ldap 2.1.12+dfsg-1.2 amd64 LDAP module for FreeRADIUS server ii freeradius-utils 2.1.12+dfsg-1.2 amd64 FreeRADIUS client utilities ii libfreeradius2 2.1.12+dfsg-1.2 amd64 FreeRADIUS shared library </snip> It is configured using the LDAP backend through mschapv2/peap (for WLan and Strongswan access), plus a "static" user for checking the daemon by Nagios. *Sometimes*, re-starting the daemon by calling '/etc/init.d/freeradius reload' from logrotate fails: <snip> Sun Dec 1 06:24:11 2013 : Auth: Login OK: [nagios/<snipped>] (from client <snipped> port 0) Sun Dec 1 06:31:10 2013 : Info: Received HUP signal. Sun Dec 1 06:31:10 2013 : Info: HUP - Re-reading configuration files --- new log file starts here --- Sun Dec 1 06:31:11 2013 : Info: HUP - loading modules Sun Dec 1 06:31:11 2013 : Info: Module: Reloaded module "detail" Sun Dec 1 06:31:11 2013 : Info: Module: Reloaded module "attr_filter.access_reject" Sun Dec 1 06:31:11 2013 : Info: Module: Reloaded module "attr_filter.accounting_response" Sun Dec 1 06:31:11 2013 : Info: Module: Reloaded module "radutmp" Sun Dec 1 06:31:11 2013 : Info: Module: Reloaded module "pap" Sun Dec 1 06:31:11 2013 : Info: Module: Reloaded module "files" Sun Dec 1 06:31:11 2013 : Info: Module: Reloaded module "mschap" Sun Dec 1 06:31:11 2013 : Info: Module: Reloaded module "suffix" Sun Dec 1 06:31:11 2013 : Info: Loaded virtual server <default> Sun Dec 1 06:31:11 2013 : Info: Loaded virtual server inner-tunnel Sun Dec 1 06:34:11 2013 : Error: [ldap] unable to create filter. Sun Dec 1 06:34:11 2013 : Auth: Invalid user: [nagios/<snipped>] (from client <snipped> port 0) </snip> Note that 'nagios' is the local "static" user, i.e. LDAP is *not* involved here - apparently, the LDAP error seems to block freeradius completely. Re-starting the daemon again brings the operation back to normal. Any help for fixing this issue would be highly appreciated! Thanks in advance, Albrecht.