Problem with Telnet, FTP to machine in LAN

Problem with Telnet, FTP to machine in LAN

Post by Madhu » Tue, 22 May 2007 20:19:14



Hi ALL,

          I am trying to establish a mini LAN with a router connected
to internet. I have three machines connected to router. All the
machines are able to connect to internet. I have linux on two of them
and a windows machine. I am able to ping each of the other machine
with respective IP address. But the problem is i am not able to
connect to the linux machines using telnet from windows machine, even
though xinetd server [telnet server ] is running. nmap reports telnet
port to be open. But connection is not getting established. I would
like to know the exact reason for the problem.

Regards,
Madhur

 
 
 

Problem with Telnet, FTP to machine in LAN

Post by Tim Southerwoo » Tue, 22 May 2007 23:59:40



> Hi ALL,

>           I am trying to establish a mini LAN with a router connected
> to internet. I have three machines connected to router. All the
> machines are able to connect to internet. I have linux on two of them
> and a windows machine. I am able to ping each of the other machine
> with respective IP address. But the problem is i am not able to
> connect to the linux machines using telnet from windows machine, even
> though xinetd server [telnet server ] is running. nmap reports telnet
> port to be open. But connection is not getting established. I would
> like to know the exact reason for the problem.

> Regards,
> Madhur

/etc/hosts.allow and /etc/hosts.deny?

firewall? "iptables -L" as root to see

I would expect telnet to be more or less crippled by default as it's not
secure on the opne internet (login and password go unencrypted). Most peple
use ssh (daemon + client on linux, Putty ssh client on windows).

HTH

Tim

 
 
 

Problem with Telnet, FTP to machine in LAN

Post by Rikishi 4 » Wed, 23 May 2007 06:48:58



Quote:>           I am trying to establish a mini LAN with a router connected
> to internet. I have three machines connected to router. All the
> machines are able to connect to internet. I have linux on two of them
> and a windows machine. I am able to ping each of the other machine
> with respective IP address. But the problem is i am not able to
> connect to the linux machines using telnet from windows machine, even
> though xinetd server [telnet server ] is running. nmap reports telnet
> port to be open. But connection is not getting established. I would
> like to know the exact reason for the problem.

Can't help you, unless it's the router that blocks telnet, or a firewall
on the Windows machines?

The use of telnet is discouraged, these days, for security reasons.
FTP ditto.

If you want to exchange files between Win and Linux without to much
hassle, I'd suggest 2 solutions:
1. Create a Win share, and access it from Konqueror using smb://win_pc as
address. No install required, in a lot of distro's.
2. Get WinSCP somewhere. It will allow you to exchange files in much the
same way as ftp, but using the secure ssh/scp protocol. Again, no config
required.

Solution 1 will use allmost the complete bandwidth. Solution 2 is slow,
about 1.8MB/s in a 100Mb/s LAN, instead of 10MB/s.

Beyond that, you can define SMB shares in Linux, for the more regular
exchanges. In SUSE, Yast will do the config for you.

--
There is an art, it says, or rather, a knack to flying.
The knack lies in learning how to throw yourself at the ground and miss.
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1. determine throughput from LAN to Internet, Durchsatz vom LAN ins Internet berechnen

Hi,

Does anyone have a program (or a link to a program) which determines
(under LINUX) how much a single computer in a network
downloads/uploads to/from the intenet?
In particular:
I have a linux-router connected to the internet (ppp0) and also
connected to a local LAN(ethX). Now I want to know, which of the Nodes
(connected to the internal LAN) consume how much throughput (in MB or
KB) to the Internet (extern WAN). Upload and download. Until now all
is done via 'iptables', working (masquerading).

THX for any help.

Hallo,

Kennt jemand ein Programm (oder den Link zu einem Programm) welches
unter LINUX feststellt, welcher lokale Rechner wie viel vom Internet
ladet/uplodaet?
Genau gesagt:
Ich habe einen LUNUX-router, welcher zum Internet (ppp0) als auch zum
internen LAN (eht0) verbunden ist. Jetzt m?chte ich wissen, wie viel
jeder einzelne Rechner im LAN vom Internet ladet bzw. wie viel jeder
einzelne Rechner ins Internet uploadet. Bis jetz funktioniert alles
ber die IPTABLES und es funktioniert (MASQUERADING).

Danke fr jede Hilfe.

Cheers, Kuge

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