[Gllug] reverser telnet

[Ian Norton]

On Sun, Apr 10, 2005 at 04:50:58PM +0100, Andy Low wrote:
> John Hearns <john.hearns at streamline-computing.com> wrote:
> > On Sat, 2005-04-09 at 18:19 +0100, Andy Low wrote:
> > > Can anyone suggest a way to setup a linux box to
> > > enable access to some serial ports via telneting
> > > to the linux boxes ip aka reverse telnet using a
> > > cisco 2509/11 to access some routers consoles 
> > > hanging off the async ports.
> > 
> > How many is 'some' ?
> > 
> > We supply Cyclades terminal servers, which are
> > dedicated to doing this
> > task. They work very well, and do just what you
> > want.
> > Telnet to various addresses and you get the serial
> > console.
> > (AFAIK they run Linux anyway)
> > 
> > If you want to use a Linux box for the task, get a
> > Cyclades
> > multi-port serial card.
> 
> Some would be at most probably be 8 maybe 12 (which
> could be split between 2 linux boxes if needed), the
> serial card is  not so much the issue as the cost,
> other wise I would get a
> Cisco/portmaster/Xyplex/Lantronics etc to do the job
> as this is a home toy and not for work. 
> I have found some packages that do what I need,
> termnetd and comserv are about the simplist that I
> have  found, any other suggestions would be
> appreciated.

I think whatever system you decide, it's worth noting that using telnet for any
sort of control system is potentially a very serious hole.

I cant see much wrong with either having a serial card in a linux box and
ssh'ing to that. 

Ian

-- 
Ian Norton-Badrul

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