NAME

trampoline − forward incoming calls to another address

SYNOPSIS

­aux/trampoline [ ­-9 ] [ ­-a ­altaddr ] [ ­-m ­netdir ] ­addr

DESCRIPTION

­Trampoline can be used in a service file (see listen(8)) to link an incoming call to another address that provides the service, typically on another machine.

­Trampoline dials ­addr and copies data between that connection and its own standard input and output. 

The options are:

­-9 The connection carries only 9P messages.  In this case ­trampoline will relay whole messages at a time. 

-a altaddr
Dial ­altaddr and relay between the two network connections, ignoring standard input and output. 

-m netdir
Restrict forwarding to particular machines. ­Netdir must be the incoming call directory.  ­Trampoline finds the caller’s MAC address ­m and checks that ndb(6) contains an entry with ether=m and the attribute trampok.  If no such entry is found, the call is rejected. 

FILES

­/sys/log/trampoline
logs rejected calls

SOURCE

­/sys/src/cmd/aux/trampoline.c

SEE ALSO

dial(2), listen(8)

Plan 9  —  December 02, 2007