Why not ssh straight to the oracle server? I don't know, I thought it'd be
safer/easier to have a single point of entry and port redirection, than
having to go different ports based on the machine you want to get to.
Jay
----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Cc: "vox-tech" <[EMAIL PROTECTED]>
Sent: Sunday, May 06, 2001 9:47 PM
Subject: Re: [vox-tech] Trying to understand my own WAN
> On Sun, 6 May 2001, Jay Strauss wrote:
>
> [...]
>
> Trying to do Xterm from the internal LAN:
> > I figure I have to run an SSH (openSSH) server somewhere inside my
DMZ.
> > My LRP box will let me SSH to the DMZ - i.e. it will let all
outbound
> > packets thru
>
> but it also has to let inbound packets in for the return trip.
>
> > I don't get how I allow X to send its display from the DMZ to the
> > Internal LAN
> > thru the LRP? I don't think I portforward, I think I have to
open a
> > hole in the LRP
> > for SSH connections - Is this right?
>
> Only an "outbound hole", with ipchains "! -y" option for the return
> packets.
>
> > Now for the hard part, I want to manage my oracle server from home
> > I SSH to my ssh server in the DMZ
> > Then I have to SSH from the SSH server to the oracle server?
>
> Why not ssh straight to the oracle server? what is the purpose of having
> an "ssh" server? Or, if you need two landing points for ssh connections,
> use multiple ssh server ports on the linksys.... directing them to the
> appropriate ports on your two ssh servers.
>
> > Then I start my start xterm and tell it to send the display home?
> > Once the packet get home, How do my commands make it back to the
oracle
> > server? The Linksys will portforward SSH to
> > the SSH server not the oracle Server.
> > How are my packets even going to make it home - won't my firewall
and
> > LRP box at home going to block them?
>
> Only if you configure them to. Ordinarily, you would setup outbound rules
> to go to your ssh server such that return packets would be allowed back to
> client ports if and only if the tcp flags are set right. Not perfect
> security, but usable.
>
> --------------------------------------------------------------------------
-
> Jeff Newmiller The ..... ..... Go
Live...
> DCN:<[EMAIL PROTECTED]> Basics: ##.#. ##.#. Live
Go...
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> Research Engineer (Solar/Batteries O.O#. #.O#. with
> /Software/Embedded Controllers) .OO#. .OO#.
rocks...2k
> --------------------------------------------------------------------------
-
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