Comments on: Port Redirector http://www.askapache.com/security/port-redirector.html Advanced Web Development Wed, 18 Nov 2009 23:28:48 -0500 hourly 1 By: bish http://www.askapache.com/security/port-redirector.html#comment-303 bish Mon, 22 Jan 2007 21:36:43 +0000 http://www.askapache.com.com/security/port-redirector.html#comment-303 Have you overlooked simple xinetd? service unlisted { disable = yes type = UNLISTED port = 5500 socket_type = stream protocol = tcp wait = no user = root redirect = 192.168.4.120 5500 } when it's not disabled (think: chkconfig vnc-listen-redir on) it will redirect incoming connections on the outside to port 5500 on the internal machine 192.168.4.120 . In that example it uses tcp, but I've seen it with UDP as well. Best of all? It's already installed on many machines, at least most linux boxes -- even the tiny openwrt comes with xinetd built-in. Gluck. Have you overlooked simple xinetd?

service unlisted
{
disable = yes
type = UNLISTED
port = 5500
socket_type = stream
protocol = tcp
wait = no
user = root
redirect = 192.168.4.120 5500
}

when it’s not disabled (think: chkconfig vnc-listen-redir on) it will redirect incoming connections on the outside to port 5500 on the internal machine 192.168.4.120 . In that example it uses tcp, but I’ve seen it with UDP as well.

Best of all? It’s already installed on many machines, at least most linux boxes — even the tiny openwrt comes with xinetd built-in.

Gluck.

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