Provided by: linesrv_2.1.21-4.3_i386 bug


       linesrv.conf - Linesrv configuration file


       This linesrv.conf configuration file is read by the Linesrv daemon upon
       starting. In this file  it  is  possible  to  specify  all  the  daemon
       properties  such  as  binding  address,  start  and  stop  command  for
       connection.  This manual page was  written  for  the  Debian  GNU/Linux
       distribution  because the original program does not have a manual page.

       linesrv is a program that...


       The different configuration options are:

       bind_to <ip addres>
              the IP the server is listening on (currently only one ip).

       port <port>
              Used to specify the port used to listen to clients. The port may
              be specified as a number.UDP port 16007 is default.

       user_accounting <yes|no>
              If  set  to  .Iyes  only LCP3 (LineControl Protocol 3.x) clients
              will have access.  You can  control  user  access  via  the  PAM
              system.  See /etc/pam.d/linecontrol and /etc/pam.d/lcshutdown to
              know how limit access

       pidfile <filename>
              This file contains the linesrver pid. This file is never removed
              when  shutting  down the server, but is always over-written when
              the server restart.


       Linesrv let you to log connection time on per-user base, per-line base,
       and  let  you  to  calculate the costs. Furthermore the server logs the
       same without IP when the connection gets closed (either by ’server’  or
       ’manually’)  remember  that  multiple clients can use the connection at
       the same time. So the sum of the secs of the clients is not the one  of
       the  ’line  ...’  entries! (evidentelly... :) You can access the log by
       means of cgi-bin lclog.

       logfile <filename>
              With this option you can specify the  file  from  the  logparser
              read  from.   The  default  is /var/log/linesrv/dialsrv.log With
              ’logfile’ you can log the ip, from time, to time and the seconds
              a  client  used  the  connection. You can parse the logfile with
              lclog, by pointing your web browser to http://<server-name>/cgi-

       html_status <pipename>
              This  is a new feature in version 2.1.0.  linesrv has to be able
              to write/read to/from that named pipe  utility  with  htmlstatus
              which  you can find in /usr/lib/cgi-bin/htmlstatus can read from
              that pipe. Attention: htmlstatus has to be  run  with  the  same
              user  id  set as the linesrv process so it can send a SIGUSR1 to
              linesrv.  It  could  be  ran  as  root.   htmlstatus  will  read
              /etc/linesrv/linesrv.conf (compiled in for security reasons) and
              then look for the two  keywords  ’pid_file’  and  ’html_status’.
              Without these it won’t work.


       with filters you may decide whether a certain client may use dialsrv or
       not.  if filter_type is allow, all clients in the list have  access  to
       the  server, others don’t. If it’s deny, all but those in the list have
       access.  Remember that UDP/IP is extremely easy to spoof.  Use  Clients
       without  user  accounting only on a trusted subnet and block the ’port’
       at your firewall.

       filter_type allow
              The only option is allow. For the moment it cannot not be used

       filter_mask <ip> <bit-mask>

       filter_ip <from> <to>
              This options defines a netmask or a range of ip numbers that can
              connect  to  the  server.  It  is possible to use more than once
              these keyword.

       script_shutdown <filename>
              Linesrv has a nice feature that permits to shutdown remotely the
              box   running   it.   It  can  be  made  by  using  the  keyword
              script_shutdown. This keyword does not support command line,  so
              you can use a wrapper found in /usr/sbin/halt-wrapper.

       limit_shutdown_ip <from> <to>

       limit_shutdown_mask <ip> <bit-mask>
              LineControl  does  also  support  TCP  connections. They’re much
              harder to spoof... but some bad boy can just take your own IP...
              You  don’t  have to use filter_type or so again. The type of the
              shutdown-filter is always ’allow’. Only listed IPs  are  allowed
              to  execute  the  script.  The  host has to pass the by filter_*
              specified list. So this list is additional and  doesn’t  replace
              the other one.


       With  Linesrv you can configure several modem (or isdn) connection with
       several ISP. Every connection is know as "Line". Each Line has his  own

       line <name>
              Define the start of Line <name>.

       interface <interface>
              specifies  the  network  interface  to  watch  to  generate  the
              throughput messages.

       con_type <netdev|isdn|file>
              How can we determine the status of the  connection  (only  up  /
              down).   working  with pppd. The network device (ex. ppp0) tells
              us about the connection status. If it’s up,  the  connection  is
              considered  as  up.  If  not, we believe that the con is closed.
              scans /dev/isdninfo for  the  connection  status.  You  have  to
              supply  some  more information about your isdn conf.  see below.
              file exists the connection is considered  as  established.   Let
              your  script  delete  it  after  it closed the connection.  This
              should be useful for people with a cablemodem.  The  problem  is
              that  you  will  get  bad  throughput messages if not all of the
              traffic goes through the ’interface’ you specified. Probably you
              will  specify  ’eth0’ as a dummy...  because you have to specify
              an interface.

       script_up <script_up>

       script_dn <script_dn>
              These directive shows the scripts  that  are  used  to  get  the
              interface up and down.

       allow_manually yes
              allow_manually defines whether linesrv should close a connection
              that got established without that linesrv called the  script_up.
              So if you have for example a cron job which checks for a running
              linesrv, you can say "allow_manually no". This way linesrv  will
              close  a line that it left open before a crash. So the line gets
              closed when linesrv gets restarted.  attention: if you have  two
              lines  with  the  same con_type and the same thing that tells us
              whether a line is up or down linesrv will consider one  line  as
              established   by  the  server  and  the  other  one  established
              manually. In this case you HAVE TO SET "allow_manually yes".  If
              not, linesrv won’t work well (it’s a bug.).

       script_esc <script_off>
              after  ’con_timeout’  seconds  This  script should establish the
              basic constellation so we can call script_up again.

       con_status_file <file>
              If you selected cont_type_file your up/dn scripts will  have  to
              create/remove this file. Change the filename to suit your needs.
              It doesn disturb as long as you’re not using ’con_type file’.

       con_timeout <secs>
              set con_timeout to something like 15 if you’re using isdn  after
              #   secs,  the  connection-establishment  gets  abortet  if  the
              connection didn’t get established.

       send_throughput yes
              DON’T set  the  following  to  ’no’!  (Your  clients  won’t  run
              well...)   probably  this  keyword  will  disapear  in  a coming




       This manual page was written by Marco Presi  <>,  for
       the Debian GNU/Linux system (but may be used by others).

                               January  12, 2002               LINESRV.CONF(5)