Hi, Having configured FR to talk to our MS SQL server which appears to work fine now (radius -X doesn't complain anymore), I've tried a quick test, a very basic condition to lookup a mac and update reply with a particular VLAN tag if its exists.. and added the following in the post-auth section of the default site. - - - - - - post-auth { - - - - - - - - - - # sql if("%{sql:SELECT COUNT(*) FROM tblwindows WHERE MacAddress ='%{Calling-Station-ID}'}" ==1){ update reply { Tunnel-Type = VLAN Tunnel-Medium-Type = IEEE-802 Tunnel-Private-Group-Id = 100 } else { update reply { Tunnel-Type = VLAN Tunnel-Medium-Type = IEEE-802 Tunnel-Private-Group-Id = 101 } } } radiusd -X reports a segmentation fault: # Instantiating module "sql" from file /usr/local/etc/raddb/mods-enabled/sql rlm_sql (sql): Attempting to connect to database "Computing" rlm_sql (sql): Initialising connection pool pool { start = 5 min = 3 max = 32 spare = 10 uses = 0 lifetime = 0 cleanup_interval = 30 idle_timeout = 60 retry_delay = 30 spread = no } rlm_sql (sql): Opening additional connection (0), 1 of 32 pending slots used rlm_sql (sql): Opening additional connection (1), 1 of 31 pending slots used rlm_sql (sql): Opening additional connection (2), 1 of 30 pending slots used rlm_sql (sql): Opening additional connection (3), 1 of 29 pending slots used rlm_sql (sql): Opening additional connection (4), 1 of 28 pending slots used # Instantiating module "IPASS" from file /usr/local/etc/raddb/mods-enabled/realm # Instantiating module "suffix" from file /usr/local/etc/raddb/mods-enabled/realm # Instantiating module "realmpercent" from file /usr/local/etc/raddb/mods-enabled/realm # Instantiating module "ntdomain" from file /usr/local/etc/raddb/mods-enabled/realm # Instantiating module "auth_log" from file /usr/local/etc/raddb/mods-enabled/detail.log rlm_detail (auth_log): 'User-Password' suppressed, will not appear in detail output # Instantiating module "reply_log" from file /usr/local/etc/raddb/mods-enabled/detail.log # Instantiating module "pre_proxy_log" from file /usr/local/etc/raddb/mods-enabled/detail.log # Instantiating module "post_proxy_log" from file /usr/local/etc/raddb/mods-enabled/detail.log # Instantiating module "pap" from file /usr/local/etc/raddb/mods-enabled/pap # Instantiating module "expiration" from file /usr/local/etc/raddb/mods-enabled/expiration # Instantiating module "preprocess" from file /usr/local/etc/raddb/mods-enabled/preprocess reading pairlist file /usr/local/etc/raddb/mods-config/preprocess/huntgroups reading pairlist file /usr/local/etc/raddb/mods-config/preprocess/hints # Instantiating module "cache_eap" from file /usr/local/etc/raddb/mods-enabled/cache_eap rlm_cache (cache_eap): Driver rlm_cache_rbtree (module rlm_cache_rbtree) loaded and linked } # modules radiusd: #### Loading Virtual Servers #### server { # from file /usr/local/etc/raddb/radiusd.conf } # server server inner-tunnel { # from file /usr/local/etc/raddb/sites-enabled/inner-tunnel # Loading authenticate {...} # Loading authorize {...} Ignoring "ldap" (see raddb/mods-available/README.rst) # Loading session {...} # Loading post-proxy {...} # Loading post-auth {...} } # server inner-tunnel server default { # from file /usr/local/etc/raddb/sites-enabled/default # Loading authenticate {...} # Loading authorize {...} # Loading preacct {...} # Loading accounting {...} # Loading post-proxy {...} # Loading post-auth {...} Segmentation fault This same sql statement worked fine when I was initially playing around with this and it worked ok against a MySql DB (FR version 2.2.x). Ive also tried the same query against our MSSql server using isql on the same server and that works fine. What am I missing/doing wroing? Regards, Mohamed