hi all Got a bug from freeradius of FC5, i ended up using FC4 and radiusd. dont have the server no more but here's some debug information for those who might be able to help out on Redhat Fedora Core 5 Module: Loaded radutmp radutmp: filename = "/var/log/radius/radutmp" radutmp: username = "%{User-Name}" radutmp: case_sensitive = yes radutmp: check_with_nas = yes radutmp: perm = 384 radutmp: callerid = yes Module: Instantiated radutmp (radutmp) Listening on authentication *:1812 Listening on accounting *:1813 Ready to process requests. bt rad_recv: Access-Request packet from host 130.95.80.25:1812, id=84, length=149 NAS-IP-Address = 130.95.80.25 NAS-Port = 50002 NAS-Port-Type = Ethernet User-Name = "host/CSSE clients" Called-Station-Id = "00-16-C7-12-AE-C2" Calling-Station-Id = "00-50-BA-7E-22-7C" Service-Type = Framed-User Framed-MTU = 1500 EAP-Message = 0x0200001601686f73742f4353534520636c69656e7473 Message-Authenticator = 0x29a5526ff95c708b434eb6beefe28ac5 Processing the authorize section of radiusd.conf modcall: entering group authorize for request 0 Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1208936784 (LWP 3491)] 0x0019acbd in ?? () from /usr/lib/rlm_preprocess.so (gdb) bt #0 0x0019acbd in ?? () from /usr/lib/rlm_preprocess.so #1 0x0019b2b1 in ?? () from /usr/lib/rlm_preprocess.so #2 0x080544eb in modcall () #3 0x08054ab7 in modcall () #4 0x080546bc in modcall () #5 0x08052a4e in read_mainconfig () #6 0x0804ca4c in rad_authenticate () #7 0x08055a75 in rad_respond () #8 0x080570b7 in main () (gdb) bt #0 0x0019acbd in ?? () from /usr/lib/rlm_preprocess.so #1 0x0019b2b1 in ?? () from /usr/lib/rlm_preprocess.so #2 0x080544eb in modcall () #3 0x08054ab7 in modcall () #4 0x080546bc in modcall () #5 0x08052a4e in read_mainconfig () #6 0x0804ca4c in rad_authenticate () #7 0x08055a75 in rad_respond () #8 0x080570b7 in main () (gdb) bt Sam