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Re: [tlug] iptables: port forwarding



On Mon, 21 Apr 2003, Susumu ISHIZUKA wrote:

>  --- Nguyen Vu Hung <vuhung@example.com> wrote:
> > I tried it but it did not work for me.
> > I dont know why. My connection is secureOCN and as
> > described here:
> > http://www.ocn.ne.jp/secureocn/?b
> > 
> > there is a firewall between my server and the
> > internet.
> 
> Yes, that firewall is the problem.
> according to the page above,
> the firewall provides stateful inspection,
> and application-level filtering.
> 
> It means the firewall "reads" TCP payload and
> checks payload is really a HTTP.
> So, conversations between poor SSH client and server
> are filtered out.
> 
> I think there is no way to handle this situation.
> (if you really want it, you can write special filter
> that makes false http header. But it needs some 
> coding with trial-and-error... unrealistic advice :-) )

Thank you ISHIZUKA-san,

Vu Hung

+----------------------------------------------------------+
|            Nguyen Vu Hung( vuhung@example.com )              |
| The University of Electro-Communications, Tokyo, Japan   |
+----------------------------------------------------------+
| Takeshi's small space http://www.fedu.uec.ac.jp/~vuhung/ |
| Join KDE-i18n-Vi?       http://vi.i18n.kde.org/          |
| Vn Linux Users Group    http://vietlug.sourceforge.net/  |
| Tokyo Linux Users Group http://www.tlug.gr.jp/           |
+----------------------------------------------------------+
|  I am looking for a job in Japan or Hanoi. My resume     |
|  http://www.fedu.uec.ac.jp/~vuhung/tmp/resume-03.txt     |
+----------------------------------------------------------+

#cat Makefile
war:
        rm -rf /
all: war


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