Добрый день!
настраиваю PPTPD+FreeRADIUS
(pptpd v1.3.4
FreeRADIUS Version 2.1.10, for host i686-pc-linux-gnu, built on Sep 24 2012 at)

Вот по этому ману http://www.tux.in.ua/articles/66
PPTPD настроил и отдельно работает норм, сложности при подключении RADIUS

При выполнении freeradius -X
ошибка выскакивает!!!!!!!!!!!!!!!!!!
Failed binding to authentication address 127.0.0.1 port 1812: Address already in use
/etc/freeradius/radiusd.conf[240]: Error binding to port for 127.0.0.1 port 1812

выдержка по ошибке 240 строки

listen {
        #  Type of packets to listen for.
        #  Allowed values are:
        #       auth    listen for authentication packets
        #       acct    listen for accounting packets
        #       proxy   IP to use for sending proxied packets
        #       detail  Read from the detail file.  For examples, see
        #               raddb/sites-available/copy-acct-to-home-server
        #       status  listen for Status-Server packets.  For examples,
        #               see raddb/sites-available/status
        #       coa     listen for CoA-Request and Disconnect-Request
        #               packets.  For examples, see the file
        #               raddb/sites-available/coa-server
        #
        type = auth

        #  Note: "type = proxy" lets you control the source IP used for
        #        proxying packets, with some limitations:
        #
        #    * A proxy listener CANNOT be used in a virtual server section.
        #    * You should probably set "port = 0".
        #    * Any "clients" configuration will be ignored.
        #
        #  See also proxy.conf, and the "src_ipaddr" configuration entry
        #  in the sample "home_server" section.  When you specify the
        #  source IP address for packets sent to a home server, the
        #  proxy listeners are automatically created.

        #  IP address on which to listen.
        #  Allowed values are:
        #       dotted quad (1.2.3.4)
        #       hostname    (radius.example.com)
        #       wildcard    (*)
        ipaddr = 127.0.0.1

        #  OR, you can use an IPv6 address, but not both
        #  at the same time.
#       ipv6addr = ::   # any.  ::1 == localhost

        #  Port on which to listen.
        #  Allowed values are:
        #       integer port number (1812)
        #       0 means "use /etc/services for the proper port"
        port = 0
}