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[ts-7000] Re: Change telnet default port (7260)

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Subject: [ts-7000] Re: Change telnet default port (7260)
From: "captconan5" <>
Date: Wed, 28 Apr 2010 22:23:16 -0000
thanks Jim, I'll give that a shot

--- In  Jim Jackson <> wrote:
>
> 
> 
> 
> On Wed, 28 Apr 2010, captconan5 wrote:
> 
> > I upgraded my router firmware to one that utilized "port mapping" and not 
> > simply port forwarding. That got around the hostile ISP. The question 
> > still stands though, what config file sets the default listening port for 
> > telnet?
> 
> AFAIK there isn't one. I'm assuming it's the busybox telnetd that running.
> Executing it with the -h flag got this...
> 
> # telnetd -h
> telnetd: invalid option -- h
> BusyBox v1.1.3 (Debian 1:1.1.3-5ubuntu12) multi-call binary
> 
> Usage: telnetd [OPTION]
> 
> Telnetd listens for incoming TELNET connections on PORT.
> Options:
>          -p PORT listen for connections on PORT (default 23)
>          -l LOGIN        exec LOGIN on connect (default /bin/sh)
>          -f issue_file   Display issue_file instead of /etc/issue
> 
> So arranging for it to be invoked with the relevant -p option seems to do 
> the job. I believe telnetd is invoked by inetd and its invocation is
> in the /etc/inetd.conf file.
> 
> You can invoke dropbear (light weight sshd) from inetd.conf and also 
> specify the listening port, it happens to be the same option (dropbear -h 
> for all the options). And truly it is better to use ssh.
> 
> 
> 
> >
> > --- In  "j.chitte" <j.chitte@> wrote:
> >>
> >>
> >>
> >> --- In  "captconan5" <maxellur@> wrote:
> >>>
> >>> Hi I was wondering if anyone knows how to change the default port that 
> >>> telnet listens for under TS-linux? I know it's 23, and this port is 
> >>> blocked by my ISP. I need to connect to my 7260 at home from a remote 
> >>> location (school). I will need to use port forwarding to get at the 7260, 
> >>> as it is behind a local network, but need to change the default listening 
> >>> port. I know it's not secure but I only need it to work for a few days. 
> >>> Any thoughts?
> >>>
> >>
> >>
> >> "Any thoughts?" Why would you want to be madly , insanely risky over a 
> >> hostile network "only for a few days" !!!?
> >>
> >> If your ISP blocks it , it's probably to stop people being silly.
> >>
> >> Is there a reason you can't use ssh (dropbear on the TS boards) ?
> >>
> >
> >
> >
>




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