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>