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Re: ltrace on arm, m68k and s390

On Mon, 4 Mar 2002, Wookey wrote:

> And if phil's not around I can do it too. We now have a virtually permanent
> connection here. I could arrange an externally-accessible arm test machine,
> but someone would have to explain how to do the tunnelling through a
> masqueraded firewall (and I've only got one IP). Is that do-able?

Yes.  You can do port forwarding/redirection.  Is your firewall running
a 2.4 kernel?  If so then you want something similar to the following:

/sbin/iptables -t nat -A PREROUTING -p tcp -d <external interface IP> --dport 5555 -j DNAT --to-destination <machine to forard to>:22
/sbin/iptables -I FORWARD -p TCP -d <machine to forward to>/ --dport 5555 -j ACCEPT

Change IPs and port to suit setup.

Then you run: "ssh -p 5555 <external interface IP>" when connecting from
outside.  Note there are security implications to this, allowing access
to a machine inside your network...


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