Re: [Ltib] FTP/TELNET on LPC3250 with linux-2.6.27.8, not working

[Fernando Vilmar Palha]

Hello Stuart/Kevin,

Thank you for tips. I had sucess with SSH (dropbear).

But, until at the moment, the FTP not work.

Do you have a tip?

Regards.

--
Fernando Vilmar Palha
Engenheiro de Computação
Nautec Eletrônica Ltda


Em 18/2/2010 07:10, Stuart Hughes escreveu:
> Hi Kevin/Fernando,
>
> One final thing to point out (which is probably obvious).  From a
> security point of view, telnet is not advisable outside a purely
> test/insecure development environment.
>
> The reason is that usernames/passwords are sent across the network in
> clear text and can easily be sniffed (that's why normally securetty
> doesn't allow any root access unless you're on the platform itself).
>
> Anyhow, if possible use ssh (dropbear), it's small, simpler to setup and
> secure.
>
> Regards, Stuart
>
> Kevin Wells wrote:
>    
> > Hi Fernando, Hi Stuart,
> >
> > One more item to take a look at...
> >
> > The 3250 configurations have telnetd setup in Busybox by default.
> > Bring up the LTIB config menu and go into the package List-->
> > menu and enable the [*] Configure busybox at build time option.
> > Exit the menu and the busybox config menu should appear soon.
> >
> > Go to the Busybox Network Utilities--->  menu and verify the
> > [*] telnetd option is checked. Also select<help>  on this option
> > to see the requirements in the kernel and elsewhere in busybox
> > to use telnetd.
> >
> > Also enable the [*] Use the devpts filesystem for Unix98 PTYs
> > option (CONFIG_FEATURE_DEVPTS) in the
> > Busybox settings--->General configuration--->  menu.
> >
> > I think this is all you need to make this work. I didn't have to
> > make changes to any startup scripts or anything else..
> >
> >      
> > > Although this can/should be made to work (I have used it), you could use
> > > dropbear instead, this would allow you to ssh into the box instead of
> > > telnet.
> > >        
> > Yes, I've been asked a few times for this support to be default,
> > so I'll look at adding dropbear and the necessary config changes
> > to the 31xx and 32xx platforms on our next update.
> >
> > thanks,
> > Kevin
> >
> >      
> > > -----Original Message-----
> > > From: address@hidden [mailto:ltib-
> > > address@hidden On Behalf Of Stuart Hughes
> > > Sent: Wednesday, February 17, 2010 10:04 AM
> > > To: Fernando Vilmar Palha
> > > Cc: address@hidden
> > > Subject: Re: [Ltib] FTP/TELNET on LPC3250 with linux-2.6.27.8, not working
> > >
> > > Hi Fernando,
> > >
> > > * Where are you trying to telnet from, what is the command (please cut
> > > and paste)
> > >
> > > * Which telnet are you using (it could come from busybox or inetutils).
> > > Check when you run ./ltib -m config
> > >
> > > * Can you send me your config/platform/ea3250/defconfig.dev file (or
> > > whatever the platform is).
> > >
> > > Although this can/should be made to work (I have used it), you could use
> > > dropbear instead, this would allow you to ssh into the box instead of
> > > telnet.
> > >
> > > Regards, Stuart
> > >
> > >
> > > Fernando Vilmar Palha wrote:
> > >        
> > > > Hi Stuart,
> > > >
> > > > I added the entries in /etc/securetty, but nothing changed.
> > > >
> > > > */etc/securetty*
> > > > address@hidden /]# cat /etc/securetty
> > > > console
> > > >          
> > > [snip]
> > >        
> > > > tts/0
> > > > tts/1
> > > > *pts/0
> > > > pts/1*
> > > >
> > > >          
> > > [snip]
> > >        
> > > > > It's probably an because the terminal you're connecting from is not in
> > > > > /etc/securetty
> > > > >
> > > > >            
> > > [snip]
> > >        
> > > > > > > I'm starting the development with LPC3250 and I'm running
> > > > > > > linux-2.6.27.8 on EA LPC3250 board, but I can not do Telnet/FTP to
> > > > > > >                
> > > the
> > >        
> > > > > > > board.
> > > > > > >
> > > > > > > Just Telnet by serial port is possible.
> > > > > > >
> > > > > > >                
> > > *ftp     stream  tcp     nowait  root    /usr/sbin/vsftpd        vsftpd
> > > telnet  stream  tcp     nowait  root    /usr/sbin/telnetd       telnetd*
> > >
> > >
> > > _______________________________________________
> > > LTIB home page: http://ltib.org
> > >
> > > Ltib mailing list
> > > address@hidden
> > > http://lists.nongnu.org/mailman/listinfo/ltib
> > >        
> >      
>    

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