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NAME

       vtund - VTun(Virtual Tunnel) daemon.

SYNOPSIS

       vtund < -s > [ -i ] [ -n ] [ -f file ] [ -P port ]

       vtund  [  -f  file  ] [ -P port ] [ -p ] [ -m ] [ -t timeout ] [ -n ] <
       session > < server address >

DESCRIPTION

       VTun provides the method  for  creating  Virtual  Tunnels  over  TCP/IP
       networks  and  allows  to  shape,  compress,  encrypt  traffic  in that
       tunnels.

       Supported type of tunnels are: PPP, IP,  Ethernet  and  most  of  other
       serial protocols and programs.

       VTun  is  easily  and  highly  configurable, it can be used for various
       network task like VPN, Mobile IP, Shaped Internet  access,  IP  address
       saving, etc.

       It  is  completely  user  space  implementation  and  does  not require
       modification to any kernel parts.

OPTIONS

       -f file
              Read config information from the file (full path  required).  By
              default vtund uses /etc/vtund.conf

       -n     Do not become daemon.

   Server mode:
       -s     Run as the server.

       -i     Run as the inetd server.

       -P port
              Listen  for  connection  on  the specified port By default vtund
              listens on TCP port 5000. This  options  is  equivalent  to  the
              ’port’ option of config file.

   Client mode:
       -P port
              Connect  to  the  server  on the specified port By default vtund
              connects to TCP port 5000. This options  is  equivalent  to  the
              ’port’ option of config file.

       -p     Reconnect to the server after connection termination. By default
              vtund will exit if connection has been terminated. This  options
              is equivalent to the ’persist’ option of config file.

       -m     Force  memory  pages  to  be  locked  memory-resident to prevent
              potential VM deadlock.  Useful with NFS  traffic.   This  option
              has no config file equivalent.

       -t timeout
              Connect   timeout   Default  is  30  seconds.  This  options  is
              equivalent to the ’timeout’ option of config file.

       session
              Session name from the config file.

       server Address of the server to connect to. Either IP address or domain
              name can be specified.

FILES

       /etc/vtund.conf
              Main  configuration  file  with  sessions and other information.
              See  vtund.conf   example   provided   with   distribution   and
              vtund.conf(5) for more information.

       /var/lock/vtund/
              Session lock files.

       /var/log/vtund/
              Connection statistic log files.
              Format:
                 Date Uncomp_In Uncomp_Out Comp_In Comp_Out

SIGNALS

       SIGHUP Server mode: Causes vtund to reread the config file.
              Client mode: Causes vtund to reestablish the connection.

       SIGUSR1
              This signal causes vtund to reset statistic counters.

SEE ALSO

       vtund.conf(5)

NOTES

       This product includes software developed by the OpenSSL Project for use
       in the OpenSSL Toolkit. (http://www.openssl.org/)

AUTHORS

       Maxim Krasnyansky <max_mk@yahoo.com>

                                                                      VTUND(8)