Sir, I am trying to move to the production server after due tests. I installed version 2.1.6 on CentOS 5.2. Funnily I am getting Segmentation fault error when my hints file is to be loaded. The debug message is: server { modules { Module: Checking authenticate {...} for more modules to load Module: Checking authorize {...} for more modules to load Module: Linked to module rlm_preprocess Module: Instantiating preprocess preprocess { huntgroups = "/etc/raddb/huntgroups" hints = "/etc/raddb/hints" with_ascend_hack = no ascend_channels_per_line = 23 with_ntdomain_hack = no with_specialix_jetstream_hack = no with_cisco_vsa_hack = no with_alvarion_vsa_hack = no } Segmentation fault My Hints file gives error when this is inserted: DEFAULT User-Name =~ '^([^@]+)(@zmobile.com)?$', NAS-IP-Address == "10.76.100.69" User-Name := "%{1}" Kindly assist. Cheers, Chris.