nas.scm

nas.scm is a Guile program that allows to convert a GNU/Linux box into a NAS. It requires Guile version 1.4 or better and ppp version 2.3.7 or better.

To use it, you will basically need to do the following:

1. Create links:

       ln -s libexec/nas.scm /etc/ppp/ip-up
       ln -s libexec/nas.scm /etc/ppp/ip-down
   

   Here, libexec denotes the location of your libexec directory, where nas.scm is installed. If not overridden at configure time, it defaults to `prefix/libexec'. These links assure the ppp will invoke nas.scm when the user's session starts and ends, thus giving it a possibility to send accounting requests.
2. Configure file `raddb/client.conf'
3. Edit file `raddb/nas.rc'. The supplied `nas.rc' template is tailored to work in most environments. The only variables you may need to change are: nas-log-facility, specifying the syslog facility to be used for logging and pppd-args, keeping the arguments to be given to ppp.
4. Configure your `/etc/inittab' and getty. For example, if you use mgetty, then the `inittab' entries for dial-up lines will look like:

       d0:345:respawn:/sbin/mgetty ttyS0 vt100
       d1:345:respawn:/sbin/mgetty ttyS1 vt100
       ...
   

   The mgetty's `login.config' will then contain the following line:

       *       -       -       /usr/local/libexec/nas.scm 
   

   If you use agetty, then the `inittab' will contain (with the long lines split for readability):

       d0:345:respawn:/sbin/agetty -mt60 \
          -l /usr/local/libexec/nas.scm 38400,19200,9600 \
          ttyS0 vt100
       d1:345:respawn:/sbin/agetty -mt60 \
          -l /usr/local/libexec/nas.scm 38400,19200,9600 \
          ttyS1 vt100
       ...
   

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