# cat /etc/*release
Gentoo Base System version 1.4.3.10

# emerge freeradius
>> ..success

# ./radiusd start
* Config not ok! (try /usr/sbin/check-radiusd-config )

# /usr/sbin/check-radiusd-config
Starting - reading configuration files ...
reread_config:  reading radiusd.conf
Config:   including file: /etc/raddb/proxy.conf
Config:   including file: /etc/raddb/clients.conf
Config:   including file: /etc/raddb/snmp.conf
Config:   including file: /etc/raddb/sql.conf
main: prefix = "/usr"
main: localstatedir = "/var"
main: logdir = "/var/log/radius"
main: libdir = "/usr/lib:/usr/lib"
main: radacctdir = "/var/log/radius/radacct"
main: hostname_lookups = no
main: max_request_time = 30
main: cleanup_delay = 5
main: max_requests = 1024
main: delete_blocked_requests = 0
main: port = 0
main: allow_core_dumps = no
main: log_stripped_names = no
main: log_file = "/var/log/radius/radius.log"
main: log_auth = no
main: log_auth_badpass = no
main: log_auth_goodpass = no
main: pidfile = "/var/run/radiusd/radiusd.pid"
main: user = "(null)"
main: group = "(null)"
main: usercollide = no
main: lower_user = "no"
main: lower_pass = "no"
main: nospace_user = "no"
main: nospace_pass = "no"
main: checkrad = "/usr/sbin/checkrad"
main: proxy_requests = yes
proxy: retry_delay = 5
proxy: retry_count = 3
proxy: synchronous = no
proxy: default_fallback = yes
proxy: dead_time = 120
proxy: post_proxy_authorize = yes
proxy: wake_all_if_all_dead = no
security: max_attributes = 200
security: reject_delay = 1
security: status_server = no
main: debug_level = 0
read_config_files:  reading dictionary
read_config_files:  reading naslist
Using deprecated naslist file.  Support for this will go away soon.
read_config_files:  reading clients
Using deprecated clients file.  Support for this will go away soon.
read_config_files:  reading realms
Using deprecated realms file.  Support for this will go away soon.
radiusd:  entering modules setup
Module: Library search path is /usr/lib:/usr/lib
Module: Loaded expr
Module: Instantiated expr (expr)
Module: Loaded PAP
pap: encryption_scheme = "crypt"
Module: Instantiated pap (pap)
Module: Loaded CHAP
Module: Instantiated chap (chap)
Module: Loaded MS-CHAP
mschap: use_mppe = yes
mschap: require_encryption = no
mschap: require_strong = no
mschap: passwd = "(null)"
mschap: authtype = "MS-CHAP"
Module: Instantiated mschap (mschap)
radiusd.conf[545] Failed to link to module 'rlm_unix': file not found

# ls /usr/lib/rlm_unix*
/usr/lib/rlm_unix-0.9.3.la  /usr/lib/rlm_unix.a   /usr/lib/rlm_unix.so
/usr/lib/rlm_unix-0.9.3.so  /usr/lib/rlm_unix.la

нашёл в инете:
# lynx http://lists.cistron.nl/pipermail/freeradius-users/2003-February/016327.html

интересно, про какой FAQ они говорят, ибо в факью от cistron-radius и freeradius я такой проблемы не нашёл.. :(