JUMPGATE(8)JUMPGATE(8)NAMEjumpgate-- a TCP connection forwarder
SYNOPSISjumpgate [-hsvi] [-b local_host] [-l local_port] [-r remote_port] [-a
remote_host] [-f filename] [-c number_of_connections] [-L microseconds]
DESCRIPTIONjumpgate is a TCP connection forwarder that provides many enhancements
and improvements over the existing programs that do the same thing.
jumpgate provides an interactive mode that queries the connected party
for the forwarding information it needs. Also, there is the option to
log the entire forwarded session in a file for later inspection. Fur‐
thermore, it can log information about the forwarded session via the
syslog(3) facility.
OPTIONS-h Output a help message that describes in brief the usage of each
option.
-s Enable logging of the forwarding information via syslog(3).
-v Display version number and exit.
-i Enable interactive mode. When interactive mode is enabled, only
the local port argument is obligatory, since the connected party
is queried about the rest needed forwarding information.
-b local_host
Specify the local IP to bind.
-l local_port
Specify the local port to listen on. A port number or a service
name can be specified.
-r remote_port
Specify the remote port to forward the connection to. A port
number or a service name can be specified.
-a remote_host
Specify the remote host or IP address to forward the connection
to.
-f filename
Specify the filename to log the entire forwarded session. In
interactive mode it logs every forwarded connection.
-c number_of_connections
Specify the maximum length of the queue of pending connections.
-L microseconds
Specify the latency in the forwarded connection in microseconds.
A microsecond is 0.000001 seconds.
jumpgate is thoroughly tested on OpenBSD, but should compile and run
without problems on any Unix-like system with no or trivial modifica‐
tions. For a list of systems that jumpgate is known to run on see the
README file. If you furtherly improve it, please send me the diffs.
EXAMPLES
For example, to forward all the onnections coming to the local machine
on port 4000 to bsd.gr port 21, and log the connected party via sys‐
log(3) one should invoke jumpgate like this:
jumpgate-s -l 4000 -r 21 -a bsd.gr
In order to wait for connections on port 4000 on the local machine, and
then ask the connected party where to forward the connection, while
logging the entire forwarding session to the jumpgate.log file you
should do:
jumpgate-i -l 4000 -f jumpgate.log
SEE ALSOinetd(8), syslogd(8), syslog(3)AUTHOR
Patroklos G. Argyroudis <argp@cs.tcd.ie>
BUGS
jumpgate's interactive mode is still considered to be in beta testing
phase. Also, there is no UDP support yet.
JUMPGATE(8)
