Thanks in advance for any assistance! System: Ubuntu 14.0.4 LTS, FreeRADIUS installed from apt-get install. FreeRADIUS works fine for what we have been using it for: MSCHAPV2 & various types of EAP against AD. We would like to add multiOTP to the mix. multiOTP testing (not using FreeRADIUS) works fine from the command line. After doing all of the steps from the guide ( http://wiki.freeradius.org/guide/multiOTP-HOWTO), I get the following error FreeRADIUS Version 2.1.12, for host x86_64-pc-linux-gnu, built on Aug 26 2015 at 14:47:03 Copyright (C) 1999-2009 The FreeRADIUS server project and contributors. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. You may redistribute copies of FreeRADIUS under the terms of the GNU General Public License v2. Starting - reading configuration files ... including configuration file /etc/freeradius/radiusd.conf including configuration file /etc/freeradius/proxy.conf including configuration file /etc/freeradius/clients.conf including files in directory /etc/freeradius/modules/ including configuration file /etc/freeradius/modules/exec including configuration file /etc/freeradius/modules/etc_group including configuration file /etc/freeradius/modules/redis including configuration file /etc/freeradius/modules/perl including configuration file /etc/freeradius/modules/pap including configuration file /etc/freeradius/modules/always including configuration file /etc/freeradius/modules/expiration including configuration file /etc/freeradius/modules/krb5 including configuration file /etc/freeradius/modules/ntlm_auth including configuration file /etc/freeradius/modules/ldap including configuration file /etc/freeradius/modules/logintime including configuration file /etc/freeradius/modules/linelog including configuration file /etc/freeradius/modules/pam including configuration file /etc/freeradius/modules/passwd including configuration file /etc/freeradius/modules/expr including configuration file /etc/freeradius/modules/replicate including configuration file /etc/freeradius/modules/wimax including configuration file /etc/freeradius/modules/counter including configuration file /etc/freeradius/modules/mac2ip including configuration file /etc/freeradius/modules/detail including configuration file /etc/freeradius/modules/ippool including configuration file /etc/freeradius/modules/echo including configuration file /etc/freeradius/modules/cui including configuration file /etc/freeradius/modules/sql_log including configuration file /etc/freeradius/modules/radutmp including configuration file /etc/freeradius/modules/preprocess including configuration file /etc/freeradius/modules/mschap including configuration file /etc/freeradius/modules/soh including configuration file /etc/freeradius/modules/detail.log including configuration file /etc/freeradius/modules/dynamic_clients including configuration file /etc/freeradius/modules/smbpasswd including configuration file /etc/freeradius/modules/acct_unique including configuration file /etc/freeradius/modules/digest including configuration file /etc/freeradius/modules/files including configuration file /etc/freeradius/modules/chap including configuration file /etc/freeradius/modules/checkval including configuration file /etc/freeradius/modules/sradutmp including configuration file /etc/freeradius/modules/detail.example.com including configuration file /etc/freeradius/modules/mac2vlan including configuration file /etc/freeradius/modules/attr_filter including configuration file /etc/freeradius/modules/policy including configuration file /etc/freeradius/modules/unix including configuration file /etc/freeradius/modules/smsotp including configuration file /etc/freeradius/modules/otp including configuration file /etc/freeradius/modules/attr_rewrite including configuration file /etc/freeradius/modules/multiotp including configuration file /etc/freeradius/modules/opendirectory including configuration file /etc/freeradius/modules/realm including configuration file /etc/freeradius/modules/rediswho including configuration file /etc/freeradius/modules/multiotpmschap including configuration file /etc/freeradius/modules/ sqlcounter_expire_on_login including configuration file /etc/freeradius/modules/inner-eap including configuration file /etc/freeradius/eap.conf including configuration file /etc/freeradius/policy.conf /etc/freeradius/policy.conf[33]: Expecting section start brace '{' after "else if" Errors reading /etc/freeradius/radiusd.conf -------------------------------------------------------------------------------------- The policy has been copied verbatim from the multiOTP howto, and inserted above the existing policy. The line in question is this:

...

else if (!control:Auth-Type && User-Password =~ /^${policy.multiotp_prefix}([0-9]{10})$/) {

if I change it to this (adding another closing bracket), FreeRadius will start, but then I get a different error when doing a radtest -t pap from the command line

...

else { if (!control:Auth-Type && User-Password =~ /^${policy.multiotp_prefix}([0-9]{10})$/) {

error on radtest: ? Evaluating (control:Auth-Type == 'MS-CHAP') -> FALSE +++? if (control:Auth-Type == 'MS-CHAP') -> FALSE +++- entering else else {...} ++++? if (!control:Auth-Type && User-Password =~ /^${policy.multiotp_prefix}([0-9]{10})$/) ? Evaluating !(control:Auth-Type ) -> TRUE ERROR: Failed compiling regular expression: Invalid preceding regular expression +++- else else returns noop ++- policy multiotp.authorize returns noop If I try any other RegEx (like nested if's), it still has the "invalid preceding regular expression" error. My concern is that the policy.conf modification in the HowTo might not work in my case. If someone can shed some light on this matter, I would gratefully appreciate it! Timo